IP Line Subcommand

[no] access-class list {in|out}

Restricts incoming and outgoing connections between a particular virtual terminal line and the addresses in an access list.

list--An integer from 1 to 99 that identifies a specific access list of Internet addresses.
in or out--Use the keyword in to restrict incoming connections; use the keyword out to restrict outgoing Telnet connections.

Example

access class 23 in

Serial Line IP (SLIP) EXEC Command

slip {default|address}

Begins a SLIP connection.

default--Connect using assigned default address.
address--Connect using using a specific address.

Examples

Router> slip 131.108.2.5
Router> slip default

Serial Line IP (SLIP) Line Subcommands

no slip

Cancels SLIP support on the line.

slip access-class number {in|out}

Configures an access list to be used on packets to or from the SLIP host.

number--IP access list number.
in--Configures list for packets from the SLIP host
out--Transmits only those packets permitted by the access list.

Example

slip access-class 3 in

slip address dynamic [IP-address]

When issued without an IP address, allows the IP address associated with a SLIP line to be assigned upon access. This feature is supported when a TACACS server is used. When issued with an IP address (IP-address), allows a default address to be specified upon access.

Example

slip address dynamic 124.201.14.3

slip address IP-address

Specifies the Internet address assigned to the SLIP client at the other end of the serial line connection.

IP-address--Internet address. Must be on the same network or subnet as the router's network interface.

Example

slip address 128.73.98.2

slip dedicated

Places the line in SLIP mode permanently. The router does not create an EXEC on this line, so the line is not available for normal interactive use.

slip hold-queue packets

Specifies the limit of the SLIP output queue, which stores packets received from the network waiting to be sent to the SLIP client. Default is 2.

packet--Maximum number of packets.

Example

slip hold-queue 4

slip interactive

Allows the line to be used in either SLIP mode or interactive mode. Interactive mode is restored when the modem is disconnected or the line is cleared.

slip mtu bytes

Specifies the size of the largest Internet packet that the SLIP support can handle. Default is 1500 bytes.

byte--Maximum number of bytes.

Example

slip mtu 3000

speed baud

Sets the transmit and receive speeds for the line.

baud--100, 1200, 2400, 4800, 9600, 19200, or 38400.

Example

speed 9600

IP Routing Protocols Global Configuration Commands

[no] autonomous-system local-AS

Specifies an autonomous system (AS) number. The no form removes the AS number.

local-AS--Local autonomous system number to which the router belongs.

Example

autonomous-system 109

[no] ip as-path access-list list {permit|deny} as-regular-expression

Defines a BGP-related access list.

list--Access list number.
permit or deny--Specifies the permit or deny condition.
as-regular-expression--A regular expression as described in the x25 route command.

Example

ip as-path access-list 4 permit ^109

[no] ip default-network network-number

Instructs a smart router to generate dynamic default information and pass it to other routers. The no form removes the instruction.

network-number--Network number.

Example

ip default-network 128.99.0.0

[no] ip route IP-address mask {IP-address|interface} [distance]

Allows a static route to be overridden by dynamic routing information.

IP-address --Network address; specify target network address first, then neighbor network address.
mask--Network mask.
interface--Interface name.
distance--Administrative distance.

Example

ip route 131.161.7.12 255.0.0.0 131.108.3.4 110

[no] router protocol [autonomous-system]

Selects the IP routing process. Must be entered before the router
subcommands that further define and tune the routing process.

protocol--Protocol-type keyword: rip, egp, hello, bgp, igp, or igrp.
autonomous-system--For IGRP, BGP, OSPF, or EGP protocols only: the number of an autonomous system.

Examples

router igrp 120
router hello

[no] router egp 0

A specific version of the router global configuration command that specifies a core gateway. Allows a specific router to have an EGP process that will enable it to behave like a peer to any reachable autonomous system.

[no] router ospf ospf-process-id

Enables OSPF for the router. You can specify multiple OSPF routing processes in each router.

ospf-process-id--An internally used identification parameter expressed as a positive integer.

Example

router ospf 109

IP Routing Protocols Interface Subcommands

[no] ip gdp

Enables or disables GDP routing with all default parameters.

[no] ip gdp holdtime seconds

Enables or disables GDP routing, keeping priority and reporting interval at their default settings.

seconds--Holdtime in seconds.

Example

ip gdp holdtime 20

[no] ip gdp priority number

Enables or disables GDP routing, maintaining report time at 5 seconds and holdtime at 15 seconds for Ethernet networks.

number--Priority number.

Example

ip gdp priority 95

[no] ip gdp reporttime seconds

Enables or disables GDP routing maintaining a priority of 100 and hold time of 15 seconds.

seconds--Report time.

Example

ip gdp reporttime 10

[no] ip irdp

Enables or disables ICMP Router Discover Protocol (IRDP) processing on an interface. Default is disabled. When enabled, default values are used. These values are as follows:

Function	Default Value
router preference	100 (range 0-255)
maximum interval between advertisements	600 seconds
minimum interval between advertisements	400 seconds

You can change these values using the ip irdp preference, ip irdp maxadvertinterval, and ip irdp minadvertinterval commands.

[no] ip irdp address IP-address [number]

Specifies an address to proxy-advertise and its preference value when IRDP processing is enabled.

IP-address--IP address to proxy-advertise.
number--Preference value to assign to the address.

Example

ip irdp address 131.108.14.6 50

[no] ip irdp holdtime seconds

Determines how long the advertisements are valid when IRDP processing is enabled.

seconds--Valid time in seconds.

Example

ip irdp holdtime 6000

[no] ip irdp maxadvertinterval seconds

Changes the default maximum interval between advertisements when IRDP processing is enabled. Default is 600.

seconds--Interval in seconds.

Example

ip irdp maxadvertinterval 400

[no] ip irdp minadvertinterval seconds

Changes the default minimum interval between advertisements when IRDP processing is enabled. Default is 400. If you change the maximum interval between advertisements, this value defaults to two-thirds of the new value.

seconds--Interval in seconds.

Example

ip irdp minadvertinterval 100

[no] ip irdp preference number

Changes the default router preference level when IRDP processing is enabled. A lower value increases the preference level. Default is 100.

number--Number designating the value in the range 0 through 255.

Example

ip irdp preference 50

[no] ip ospf authentication-key 8-bytes-of-password

Assigns or cancels a password to be used by neighboring routers on a wire that employs OSPF's simple password authentication.

8-bytes-of-password--Password you enter from the keyboard for authentication. It can be up to eight bytes in length.

Example

ip ospf authentication-key yourpassword

[no] ip ospf cost cost

Specifies or removes the cost of sending a packet on an interface.

cost--Link state metric advertised as the link cost in the router's router links advertisement. The software does not support Type of Service (TOS), so you can assign only one cost per interface.

: In general, the path cost is calculated as follows:

The following table lists the media types supported and their default costs.

Media	Default Cost
56-kbps Serial Link	1785
64-kbps Serial Link	1562
T1 (1.544-Mbps Serial Link)	65
E1 (2.048-Mbps Serial Link)	48
4-Mbps Token Ring	25
Ethernet	10
16-Mbps Token Ring	6
FDDI	1

[no] ip ospf dead-interval number-of-seconds

Sets or cancels the number of seconds that neighboring routers wait after seeing this router's Hello packets before declaring the router down. This value is advertised in the router's Hello packets in the DeadInt field and must be the same for all routers attached to a common network. Default is four times the Hello interval.

number-of-second--Unsigned integer value.

Example

is ospf dead-interval 60

[no] ip ospf hello-interval number-of-seconds

Sets or cancels the number of seconds between the Hello packets that the router sends on the interface. This value is advertised in the router's Hello packets and must be the same for all routers attached to a common network.

number-of-second--Unsigned integer value.

Example

is ospf hello-interval 15

[no] ip ospf priority 8-bit-number

Establishes or cancels a Router Priority, which helps determine the Designated Router for a network. Default is zero.

8-bit-number--8-bit unsigned integer.

Example

ip ospf priority 4

[no] ip ospf retransmit-interval number-of-seconds

Sets the number of seconds between link state advertisement retrans-missions for adjacencies belonging to the interface. Default is 5 seconds.

number-of-seconds--Number of seconds. Should be greater than the expected round-trip delay between any two routers on the attached network. The value should be larger for serial lines and virtual links.

Example

ip ospf retransmit-interval 7

[no] ip ospf transmit-delay number-of-seconds

Sets or cancels the estimated number of seconds it takes to transmit a link state update packet on the interface. The value should include the trans-mission and propagation delays for the interface. Default is 1 second.

number-of-seconds--Number of seconds; an integer.

Example

ip ospf transmit-delay 2

IP Routing Protocols Router Subcommands

[no] area area-id authentication

Enables authentication for an area; for OSPF only. The authentication type (AuType0 or AuType1) must be the same for all routers in an area.

area-id--The Area ID of the area for which authentication is to be enabled.

Example

area 12 authentication

[no] area area-id stub
[no] area area-id default-cost cost

The two commands define an area as a stub area; for OSPF only. This command is used only on an area border router attached to a stub.

area-id--The Area ID for the stub area specified as either a decimal value or an IP address.
cost--Cost for the default external route used for the stub area expressed as a 32-bit number.

Examples

area 12 stub
area 12 default-cost 1001

[no] area area-id range IP-address mask

Advertises a single summary route to other areas; for OSPF only. This command is used only with area border routers.

area-ID--Area ID for the area about which routes are to be summarized specified as either a decimal value or an IP address.
IP-address--Standard IP address.
mask--Standard IP mask.

Example

area 9 range 131.120.18.0 255.255.0.0

[no] area area-id virtual-link router-id [hello-interval number-of-seconds] [retransmit-interval number-of-seconds] [transmit-delay number-of-seconds] [dead-interval number-of-seconds] [authentication-key 8-bytes-of-password]

Defines virtual links; for OSPF only.

area-id--Area ID assigned to the transit area for the virtual link.
router-id--Router ID associated with the virtual link neighbor.
number-of-seconds--Number of seconds between the Hello packets that the router sends on the interface expressed as an unsigned integer. This value must be the same for all routers attached to a common network. Default is 10 seconds.
8-bytes-of-password--String of characters that you can enter from the keyboard up to eight bytes in length.

[no] default-information allowed {in|out}

Controls the handling of default information between multiple IGRP processes. Default is enabled.

in or out--Use the in keyword with the no form to suppress IGRP exterior or default routes when received by an IGRP process. Use the out keyword with the no form to suppress IGRP exterior routes in updates.

Example

no default-information allowed out

[no] default-information originate

Configures EGP to generate a default route. If the next hop for the default route can be advertised as a third party, it is included as a third party.

[no] default-information originate metric metric-value metric-type
type-value

Enables or disables the generation of a default route into an OSPF domain. Must be used with a redistribute command.

metric metric-value--Specifies the link state cost to be assigned to the default route. The argument metric-value is a dimensionless link state cost formed as a 24-bit decimal.
metric-type type-value--Specifies the external link type associated with the default route advertised into the OSPF routing domain. The type-value argument can be 1 (Type 1 external route) or 2 (Type 2 external route). Default is 2.

Example

default-information originate metric 100 
  metric-type 1

default-metric bandwidth delay reliability loading mtu

Sets metrics for IGRP only.

bandwidth--Minimum bandwidth of the route in kilobits per second.
delay--Route delay in tens of microseconds.
reliability--Likelihood of successful packet transmission expressed as a number between 0 and 255 where 255 is 100 percent reliability.
loading--Effective bandwidth of the route in kilobits per second.
mtu--Minimum Maximum Transmission Unit (MTU) of the route.

Example

default-metric 10000 2000 254 1 1500

default-metric number

Sets metrics for RIP, EGP, BGP, and HELLO, which use scalar, single-valued metrics.

number--Default metric value appropriate for the specified routing protocol expressed as an unsigned integer.

Example

default-metric 10000

no default-metric

Instructs the current routing protocol to resume using the built-in
automatic metric translations.

[no] distance weight [[IP-source-address IP-address-mask]
[access-list-number]]

Defines or deletes an administrative distance.

weight--Integer from 10 to 255 that specifies a default administrative distance that the router uses when no other specification exists for a routing information source.
IP-source-address--Internet address that identifies a router, network, or subnet to which the weight value applies.
IP-address-mask--A mask that specifies which bits, if any, to ignore in the address value in dotted-decimal format.
access-list-number--Number of a standard IP access list.

Example

distance 90 192.31.7.0 0.0.0.255

[no] distance bgp external-distance internal-distance local-distance

Specifies administrative distance.

external-distance--Value for BGP external routes. Default is 20.
internal-distance--Value for BGP internal routes. Default is 200.
local-distance--Value for BGP local routes. Default is 200.

Example

distance bgp 40 200 200

[no] distribute-list access-list-number in [interface-name]

Filters networks received in updates, or cancels the filter.

access-list-number--Standard IP access list number.
interface-name--Interface on which the access list should be applied to incoming updates. If no interface is specified, the access list is applied to all incoming updates.

Example

distribute-list 1 in Ethernet 0

[no] distribute-list access-list-number out [interface-name|routing-process]

Suppresses networks so that they are not sent in updates.

access-list-number--Standard IP access list number.
interface-name or routing-process--To restrict the routing updates sent to a specific interface, specify the interface. To redistribute networks, specify the routing process name.

Example

distribute-list 3 out igrp 109

[no] metric holddown

For IGRP only. Disables or re-enables holddown. Use this command only if the entire autonomous system (AS) is running Version 8.2(5) or later.

[no] metric maximum-hops hops

For IGRP only. Causes the IP routing software to advertise as unreachable those routes with a hop count greater than the assigned value.

hops--Hop count from 1 to 255. Default is 100.

Example

metric maximum-hops 150

[no] metric weights TOS K1 K2 K3 K4 K5

Allows the tuning of the IGRP metric calculation for a particular Type of Service (TOS).

TOS--Use the parameter 0.
K1-K5--Constants for the equation that converts an IGRP metric vector into a scalar quantity. By default, K1 = 1, K2 = 0, K3 = 1,
K4 = 0, and K5 = 0.

[no] neighbor any [list]

Controls how an BGP process determines which neighbors will be treated as peers.

list--Access list number.

[no] neighbor any [list]
[no] neighbor any third-party IP-address [internal|external]

Controls how an EGP process determines which routers to treat as peers. Used with the router egp 0 router subcommand.

list--Access list number. When this argument is supplied, the neighbor is accepted by the access list to be allowed to peer with the EGP process.
third-party IP-address--Provides the IP address to be used as the next hop in EGP advertisements.
internal or external--Indicates whether the third-party router should be listed in the internal or external section of the EGP update.

Examples

neighbor any 2
neighbor any third-party 10.1.1.1

[no] neighbor IP-address

Creates a list of neighbor routers. The no form removes the entry.

IP-address--IP address of a peer router with which routing information will be exchanged.

Example

neighbor 192.31.7.0

[no] neighbor IP-address distribute-list list {in|out}

Distributes neighbor information as specified in an address list for BGP.

IP-address--IP address of the neighbor router.
list--Access list to be applied to incoming or outgoing updates.
in or out--If the access list is to be applied to incoming updates, use the keyword in. If the access list is to be applied to outgoing updates, use the keyword out.

Examples

neighbor 192.31.7.0 distribute-list 41 out
neighbor 120.23.4.1 distribute-list 39 in

[no] neighbor IP-address filter-as number deny

Filters neighbor information for an address in a specific autonomous system (AS) for BGP. Instructs the router to ignore the information learned about the network.

IP-address--IP address of the neighbor router.
number--Autonomous system number of the neighbor routers that you want to filter.

Example

neighbor 120.23.4.1 filter-as 20 deny

[no] neighbor IP-address filter-as number permit weight

Filters neighbor information for an address in a specific autonomous system (AS) for BGP. Allows incoming information to be added to the routing table.

IP-address--IP address of the neighbor router.
number--Autonomous system number of the neighbor routers that you want to filter.
weight--Weight associated with incoming information that is added to the routing table.

Example

neighbor 120.23.4.1 filter-as 20 permit 60

[no] neighbor IP-address filter-list list {in|out}
[no] neighbor IP-address filter-list list weight weight

Establishes or removes filters. You can specify multiple weight filters for a single neighbor, but only one in or out filter.

IP-address--IP address of the neighbor router.
list--Predefined BGP access list number.
in or out--If the access list is to be applied to incoming updates, use the keyword in. If the access list is to be applied to outgoing updates, use the keyword out.
weight weight--Assigns a relative importance to a specific list.

Examples

neighbor 192.31.7.0 filter-list 41 out
neighbor 120.23.4.1 filter-list weight 10

[no] neighbor IP-address interface interface [priority 8-bit-number] [poll-interval number-of-seconds]

Configures routers interconnecting to non-broadcast networks; for OSPF only. The no form removes the neighbor with the specified IP address from the list.

IP-address--Neighbor's IP address.
interface interface--Specifies interface type and unit number.
priority 8-bit-number--Router Priority value of the the nonbroadcast neighbor associated with the specified IP address.
poll-interval number-of-seconds--Specifies the interval at which hello packets are sent to a neighboring router that has become inactive. This interval should be much larger then the Hello Interval. Default is 120 seconds.

Example

neighbor 120.23.4.77 interface ethernet 2

[no] neighbor IP-address remote-as autonomous-system

Adds a neighbor entry to the routing table for BGP.

IP-address--IP address of the neighbor router.
autonomous-system--Autonomous system number of the neighbor router.

Example

neighbor 131.108.1.2 remote-as 109

[no] neighbor IP-address third-party third-party-IP-address [internal|external]

Adds third-party information to EGP routing updates.

IP-address--IP address of the EGP peer.
third-party-IP-address--Address of the third party on the network shared by the router and the EGP peer.
internal or external--Indicates whether the third-party router should be listed in the internal or external section of the EGP update.

Example

neighbor 131.108.6.5 third-party 131.108.6.99 
internal

[no] neighbor IP-address version value

Configures the router to handle only Version 2 of the BGP protocol. The no form returns the version to the default state for that neighbor.

IP-address--Address of the BGP-speaking neighbor
value--Version number; must be 2 or 3.

Example

neighbor 131.104.27.2 version 2

[no] neighbor IP-address weight weight

Specifies a weight to assign to all routes learned from this neighbor. The router chooses as the preferred route the route with the highest weight.

IP-address--Specific neighbor connection to which you want to assign the weight.
weight--Weight to assign.

Example

neighbor 131.99.87.2 weight 50

[no] network IP-address

Specifies a list of networks to be advertised as originating within an AS for BGP. For EGP, it specifies the network to be advertised to the EGP peers of an EGP routing process. For IGRP, HELLO, and RIP, it specifies the interface on which to run the protocol and the networks to advertise. The no form removes an entry from the list.

IP-address--IP address.

Example

network 129.140.0.0

[no] network IP-address wildcard-mask area area-id

Specifies a range of IP addresses for any area in which OSPF is used as a routing protocol.

IP-address--IP address.
wildcard-mask--An IP-address-type mask that includes "don't care" bits.
area-id--An area to be associated with the OSPF address range specified as either a decimal value or an IP address.

Example

network 131.108.20.0 0.0.0.255 area 10.9.50.0
network 131.108.0.0. 0.0.255.255 area 2

[no] network IP-address backdoor

Specifies to BGP that a back-door route will provide better information about the network.

IP-address--Address of the network to which you want to set up a back-door route.

Example

network 192.31.7.0 backdoor

[no] offset-list list {in|out} offset

For IGRP, RIP, and HELLO only. Adds or removes a positive offset to incoming and outgoing metrics for networks matching an access list.

list--Access list. Specify zero to apply the offset to all metrics.
in or out--Indicate whether the offset applies to incoming (in) or outgoing (out) metrics.
offset--Offset. For IGRP, the offset is added to the delay component only.

Example

offset-list 121 out 110

[no] passive-interface interface

Disables or enables the routing of updates on an interface.

interface--Interface name.

Example

passive-interface fddi 1

[no] redistribute process-name [AS-number]

Passes routing information among routing protocols.

process-name--Routing information source: static, rip, egp, hello, or igrp.
AS-number--If you specified igrp, bgp, or egp, supply the autonomous system number.

Example

redistribute egp 4
redistribute static

[no] redistribute protocol [source-id] [metric metric-value] metric-type type-value] tag tag-value] [subnets]

Redistributes routes from other OSPF routing domains and non-OSPF routing domains into a specific OSPF routing domain.

protocol--Source protocol from which routes are being distributed: bgp, egp, hello, igrp, ospf, rip, or static.
source-id--Autonomous system (IGRP, BGP, or EGP) or an OSPF process ID from which routes are to be redistributed. Do not include this argument if you used the keyword hello or rip.
metric metric-value--Specifies the link state cost to be assigned to the default route. The argument metric-value is a dimensionless link state cost formed as a 24-bit decimal.
metric-type type-value--Specifies the external link type associated with the default route advertised into the OSPF routing domain. The type-value argument can be 1 (Type 1 external route) or 2 (Type 2 external route). Default is 2.
tag tag-value--32-bit decimal value attached to each external route.
subnets--Specifies the scope of redistribution for the specified protocol.

Example

redistribute hello metric 100 metric-type 1

[no] synchronization

Enables or disables the synchronization between BGP and your IGRP. Synchronization allows a router within an AS to have the route before BGP makes it available to other ASes. It can also be used when there are routers in the AS that do not speak BGP. Disable to allow the router to advertise a network route without waiting for the IGP. The default is enabled.

[no] timers basic update invalid holddown flush sleeptime

Adjusts timers. Use the show ip protocols command to display defaults and current values. The no form restores the default.

update--Rate at which updates are sent.
invalid--Number of seconds after which a route is declared invalid. The value of invalid should be three times the value of update.
holddown--Number of seconds during which routing information regarding better paths is suppressed. The value of holddown should be at least three times the value of update.
flush--Number of seconds that must pass before the route is removed from the routing table. The value of flush should be equal to or greater than the sum of the values of invalid and holddown.
sleeptime--Number of milliseconds to postpone routing updates.

Example

timers basic 5 15 15 30 100

[no] timers bgp keepalive holdtime

Adjusts BGP timers. The no form restores the default.

keepalive--Frequency with which the router sends keepalive messages to its peer. Default is 60 seconds.
holdtime--Number of seconds that the router waits for a keepalive message before declaring a peer dead. Default is 180 seconds.

Example

timers bgp 50 100

[no] timers egp hello poll

Adjusts EGP timers. The no form restores the default.

hello--Interval at which hello packets are sent. Default is 60 seconds.
poll--Interval at which polling is performed. Default is 180 seconds.

Example

timers egp 30 90

variance multiplier

Controls the amount of load balancing that IGRP can perform. Default is 1.

multiplier--Nonzero positive integer.

Example

variance 5

IP and SLIP Show Commands

Command	Display
show access-lists	Contents of IP access lists.
show async-bootp	Parameters that have been set for SLIP extended BootP requests.
show hosts	Default domain name, style of name lookup service, list of name server hosts, and cached list of host names and addresses.
show ip accounting [checkpoint]	Active IP accounting database.
show ip aliases	Internet addresses mapped to TCP ports and SLIP addresses that are treated like aliases.
show ip arp	Address Resolution Protocol (ARP) cache.
show ip bgp [network]	Networks in the BGP routing table.
show ip bgp neighbors [network] routes	Routes learned from the specified neighbor.
show ip bgp paths	All BGP paths in the database.
show ip bgp summary	Status of all BGP connections.
show ip cache	Routing table cache used to fast switch Internet traffic.
show ip egp	Statistics about EGP connections.
show ip interface [interface]	IP parameters configured on the interface.
show ip irdp	IRDP values.
show ip masks [address]	Masks used for network addresses.
show ip ospf [options]	OSPF routing processes.
show ip ospf interface [interface]	OSPF parameters configured on the interface.
show ip ospf neighbor [interface]	OSPF neighbor information on a per-interface basis.
show ip protocols	Parameters and current state of the active routing protocol process.
show ip route [options]	IP routing table.
show ip tcp header- compression	IP compression statistics.
show ip traffic	IP protocol statistics.
show slip	Status of all lines configured for SLIP.
show tcp [line-number]	Status of TCP connections.

ISO CLNS Global Configuration Commands

[no] clns configuration-time seconds

Specifies the rate at which ESH and ISH packets are sent. The no form restores the default of 60.

seconds--Number of seconds.

Example

clns configuration-time 45

[no] clns holding-time seconds

Allows the sender of an ESH or ISH packet to specify the length of time during which the information in the hello packets will be believed. The no form restores the default of 300 seconds.

seconds--Number of seconds.

Example

clns holding-time 240

clns host name nsap

Creates a name for a Network Service Access Point (NSAP). The name can be used instead of the long set of numbers associated with an NSAP.

name--Name for the NSAP.
nsap--Numbers associated with the NSAP.

Example

clns host nsap1 47.0004.004d.3132.3334.3536.00

[no] clns net NET-address

Assigns static network addresses. If a router is configured to support ISO CLNS and is not configured to dynamically route CLNS packets using a ISO-IGRP or IS-IS, you must use this command to assign an address to the router. The no clns net command removes any previously configured NET address. Default is none.

NET-address--Network Entity Title (NET) address.

Example

clns net 47.0005.0001.0000.0001.000.00

[no] clns packet-lifetime number

Specifies the initial lifetime for locally generated packets. Default is 64.

number--Number of seconds.

Example

clns packet-lifetime 32

[no] clns routing

Enables or disables routing of CLNS packets.

[no] clns want-erpdu

Specifies whether the router requests error PDUs on packets sourced by the router. Default is enabled.

ISO CLNS Interface Subcommands

[no] clns checksum

Enables or disables checksum generation when ISO CLNS routing soft-ware sources a CLNS packet. The no form restores the default, which is disabled.

[no] clns cluster-alias

Configures or cancels DECnet Phase V cluster aliasing. When enabled,
the router can advertise the same system identifier as other systems in
end-system hello messages.

[no] clns congestion-threshold number

Sets the congestion experience bit if the output queue contains more than the specified number of packets. The no form prevents this bit from being set. Default is 4.

number--Maximum number of packets that are accepted before the router sets the congestion experience bit.

Example

clns congestion-threshold 3

[no] clns enable

Enables static or dynamic routing. The no form configures the interface to pass ISO CLNS packet traffic to end systems.

[no] clns erpdu-interval milliseconds

Determines the minimum interval time in milliseconds between ERPDUs. The no form turns off the interval rate and sets no limit. Default is 10.

milliseconds--Number of milliseconds between ERPDUs.

Example

clns erpdu-interval 5

[no] clns {es-neighbor|is-neighbor} nsap snpa [X.25-facilities-info]

Lists all End Systems or Intermediate Systems that will be used when mapping information is statically entered. The SNPAs are the X.25 network addresses (X.121 addresses). These are usually assigned by the X.25 network provider.

es-neighbor or is-neighbor--Specify es-neighbor for End Systems or is-neighbor for Intermediate Systems.
nsap--CLNS address.
snpa--MAC addresses.
X.25-facilities-info--Specifies nondefault packet and window size, reverse charge information, and so on.

Examples

clns is-neighbor 47.0004.0021.0001.0000.0000.00
  3101
clns is-neighbor 47.0004.0021.0001.0000.0000.00
  3101 windowsize 7 7 packetsize 512 512
clns is-neighbor 47.0004.004d.3132.3334.3536.00
  310117

[no] clns mtu size

Sets the MTU packet size for the interface. The no form restores the default, which is the maximum packet size for the interface.

size--MTU packet size for the interface. The minimum value is 512.

Example

clns mtu 512

[no] clns net {NSAP-address|name}

Assigns an NSAP address or node name for a router interface. The no form removes any previously configured NSAP address.

NSAP-address--NSAP address.
name--Node name.

Example

clns net 47.0004.004D.0003.0000.0C00.62E6.00

[no] clns rdpdu-interval milliseconds

Determines the minimum interval time in milliseconds between RDPDUs. The no form sets no limit. Default is 100.

milliseconds--Minimum interval time.

Example

clns rpdu-interval 50

[no] clns rdpdu-mask

Enables or disables the address mask on RDPDUs.

[no] clns route-cache

Enables or disables fast switching through the cache. Default is enabled.

[no] clns send-erpdu

Allows CLNS to send an error PDU when it detects an error in a data PDU. The no form disables the function. Default is enabled.

[no] clns send-rdpdu

Allows CLNS to send redirect PDUs when a better route for a given host is known. The no form disables the function. Default is enabled.

ISO CLNS Routing Protocols
Global Configuration Commands

[no] clns route NSAP-prefix interface-type unit [SNPA-address]

Creates a static route for a specific interface. The no form with the NSAP-prefix argument cancels the static route.

NSAP-prefix--Prefix of NSAPs to be forwarded.
interface-type--Interface type.
unit--Interface number.
SNPA-address--SNPA address to which the NSAPs are forwarded. This argument is required for multiaccess networks. It is not required for serial interface routes.

Examples

clns route 38.0002 serial 0
clns route 38.0003 ethernet 1 0000.0c00.1550
clns route 39.0003 serial 1 4085551212

[no] clns route NSAP-prefix {next-hop-NET|name}

Establishes a specific static route.

NSAP-prefix--Prefix of NSAPs to be forwarded.
next-hop-NET--NET where forwarded NSAPs are sent.
name--Name of interface where forwarded NSAPs are sent.

Examples

clns route 47.0004.000c  47.0005.0001.0000.0001.
  0000.00
clns route 39.0001 serial 0

[no] clns route NSAP-prefix discard

Tells a router to discard packets with the specified NSAP-prefix.

NSAP-prefix--Prefix of NSAPs to be forwarded.

Example

clns route 47.0004.000c discard

[no] router [isis|iso-igrp] area-tag

Identifies the area the router will work in and lets the router know that it will be routing dynamically rather than statically.

isis and iso-igrp--The keyword isis specifies the IS-IS protocol. The keyword iso-igrp specifies the ISO-IGRP protocol.
area-tag--Meaningful name for an area.

Example

router isis area1

ISO CLNS Routing Protocols Router Subcommands

[no] distance value

Assigns or deletes an administrative distance for a particular routing protocol. The no form restores the following defaults: static routes = 10, ISO-IGRP routes = 100, IS-IS routes = 110.

[no] is-type [level-1|level-1-2|level-2-only]

Configures the level at which the router should operate. The no is-type command resets routing level to the default, which is Level 1 and 2.

level-1|level-1-2|level-2-only--If level-1 is specified, the router acts as an station router. If level-1-2 is specified, the router acts as both an station router and a router that routes between areas. If level-2-only is specified, the router acts as an interarea router only.

Example

is-type level-1

[no] net NET

Configures a Network Entity Title (NET) for the routing process.

NET--Network Entity Title, which defines the area addresses for the ISO-IGRP area.

Example

net 47.0004.004d.0001.0000.0c11.1111.00

[no] redistribute [iso-igrp|isis] area-tag

Redistributes routing information throughout a routing area. The no form disables this CLNS routing protocol on this interface.

area-tag--Defined tag for the areas from which the routing information is to be redistributed.

Example

redistribute iso-igrp area2

[no] redistribute static

Causes the router to inject any static CLNS routes into the domain. The no form stops redistribution.

ISO CLNS Routing Protocols Interface Subcommands

[no] clns route NSAP-prefix interface-type unit [SNPA-address|
X.121-address]

Establishes a specific static route for a named interface.

nsap-prefix--Prefix of NSAPs to be forwarded.
interface-type unit--Name and number of interface.
SNPA address or X.121 address--Either the SNPA address, which is required for multiaccess networks other than serial interface routes, or the X.121 address.

Examples

clns route 39.0001 serial 0
clns route 38.0002 ethernet 10000.0c00.1550

[no] clns router isis area-tag

Enables IS-IS routing for OSI on a specific interface. The no form with an area tag disables IS-IS routing for the system.

area-tag--Tag defined for the NET using the router global configuration command.
level2--Specifies that the interface can advertise Level 2 information.

Example

clns router isis area1

[no] clns router iso-igrp area-tag [level2]

Specifies ISO-IGRP routing. The no form with an area tag disables ISO IGRP routing for the system.

area-tag--Tag defined for the NET using the router global configuration command.
level2--Specifies that the interface can advertise Level 2 information.

Example

clns router iso-igrp area3 level2

[no] isis circuit-type [level-1|level-1-2|level-2-only]

Configures the type of adjacency desired for this interface. The no form restores the default, which is level-1-2.

level-1--If level-1 is specified and there is at least one area address in common between this system and its neighbors, at most a Level 1 adjacency can be established.
level-1-2--If level-1-2 is specified, a Level 1 and 2 adjacency is established if the neighbor is configured as level-1-2 and there is at least one area in common. If there is no area in common, a Level 2 adjacency is established.
level-2-only--If level-2-only is specified, a Level 2 adjacency is established if and only if the neighbor is configured exclusively to be a Level 2 router.

[no] isis metric default-metric delay-metric expense-metric error_metric
[level-1|level-2]

Configures the metric (or cost) for the specified interface.

default-metric--Default metric value. Default is 10.
delay-metric--Not currently supported.
expense-metric--Not currently supported.
error_metric--Not currently supported.
level-1 or level-2--If you do not specify level-1 or level-2, the default metric applies to Level 1 and Level 2. To reset the metric for Level 1 or Level 2 only, specify the appropriate keyword.

Example

isis metric 8 level-1

[no] isis password password [level-1|level-2]

Configures the authentication password for an interface. The no form restores the default, which is disabled.

password--Password you enter for authentication. It can contain up to 80 characters.
level-1 or level-2--Indicates the level for which you want to specify the password.

Example

isis password yourpassword level-1

[no] isis priority value [level-1|level-2]

Sets the priority for designated router election. Priorities can be configured for Level 1 and Level 2 individually. The no form restores the default, which is 64.

value--Priority value from 1 to 64.
level-1 or level-2--If you do not specify level-1 or level-2, the priority applies to Level 1 and Level 2. To reset the priority for Level 1 or Level 2 only, specify the appropriate keyword.

Example

isis priority 32

ISO CLNS Show Commands

Command	Display
show clns cache	CLNS routing cache.
show clns	Information about the CLNS network.
show clns es-neighbor [options]	ES neighbors that this router knows about.
show clns interface [interface]	CLNS parameters configured on this interface.
show clns is-neighbors [options]	IS neighbors sorted according to the area in which they are located.
show clns neighbors [options]	Information about both ES and IS neighbors.
show clns protocol	Protocol-specific information about each ISO-IGRP routing process in this router.
show clns redirects	CLNS redirect information.
show clns route [NSAP]	All destinations to which this router knows how to route packets.
show clns traffic	List of CLNS packets this router has seen.
show isis database [level-1\| level-2\|l1\|l2\|detail]	IS-IS link state database.
show isis routes	IS-IS Level 1 routing table.

Novell Global Commands

[no] access-list number {deny|permit} novell-source-network[.source-address [source-mask]] novell-destination-network[.destination-address [destination-mask]]

Specifies standard Novell IPX access lists. The no form removes any access list in the current image with the specified number.

number--A unique number for this access list from 800 to 899.
deny or permit--Specifies the deny or permit condition.
novell-source-network--Source network.
.source-address--Address of the source network.
source-mask--Mask for the source-address.
novell-destination-network--Destination network.
.destination-address--Address of the destination network.
destination-mask--Mask for the destination-address.

Examples

access list 800 deny -1 2
access list 800 deny 1.0000.0c00.1111
access-list 800 permit 1.1111.1111.1111
0000.0000.0000 2.2222.2222.2222 0000.0000.0000

[no] access-list number {deny|permit} novell-protocol source-network[.source-address [source-mask]] source-socket destination-network[.destination-address [destination-mask]]destination-socket

Specifies extended Novell IPX access lists. The no form removes any access list in the current image with the specified number.

number--A unique number for this extended access list from 900 to 999.
deny or permit--Specifies the deny or permit condition.
novell-protocol--Novell protocol number.
source-network--Source network.
.source-address--Address of the source network. A network number of
-1 matches all networks.
source-mask--Mask for the source-address.
source-socket--Socket number. A socket number of zero matches all sockets.
destination-network--Destination network.
.destination-address--Address of the destination network.
destination-mask--Mask for the destination-address.
destination-socket--Destination socket number. A socket number
of zero matches all sockets.

Examples

access list 900 deny 1 1 1234 2 1234
access list 900 deny 1 1.1111.1111.1111 0000.0000.
0000 1234 2.2222.2222.2222 0000.0000.0000 1234

[no] access-list number {permit|deny} network[.address] [service-type]

Defines an access list for filtering SAP-based messages generated by Novell servers and Cisco routers as they broadcast their capabilities.

number--A unique decimal number from 1000 to 1099.
permit or deny--Specifies the type of access desired. Permit or deny access is based on the data provided.
network--A hexadecimal Novell network number. The value zero defines the local network; the value -1 defines all networks.
.address--Novell host address.
service-type--The service type to filter in hexadecimal format. The value zero represents all services.

Example

access-list 1001 deny -1 4
access-list 1001 permit -1

[no] novell maximum-paths paths

Follows the novell routing command to set the maximum number
of multiple paths that the router will remember and use. The no form restores the default, which is 1.

paths--Number of paths to be remembered.

Example

novell maximum-paths 3

[no] novell route network network.address

Specifies or removes static routes for a Novell network.

network--The network whose messages you want to forward.
network.address--The network address of the router to which you want to forward network traffic.

Example

novell route 5e 3abc.0000.0c00.1ac9

[no] novell routing [host-address]

Enables or disables Novell routing and Novell RIP routing and SAP services.

host-address--System-wide host address. If you do not specify an address, the MAC address of the first Ethernet, Token Ring, or FDDI interface is used. The address must not be multicast.

Example

novell routing 0000.0c00.23fe

[no] novell sap service-type name net.address socket hop-count

Specifies or removes static Novell SAP table entries.

service-type--SAP service-type number.
name--Service name.
net.address--Network and host address of the server.
socket--Socket number for this service
hop-count--Server is this number of hops away.

Example

novell sap 107 MAILSERV 160.0000.0c01.2b72 8104 1

Novell Interface Subcommands

[no] novell access-group number

Assigns a Novell IPX access list group number to a specific interface. The no form removes the number.

number--Novell access list number. All outgoing packets forwarded through the interface will be filtered by this access list.

Example

novell access-group 815

novell encapsulation {novell-ether|arpa}

Selects which data format or encapsulation is used on an Ethernet inter-face. Default is Novell IPX over Ethernet using Novell's variant of IEEE 802.2 encapsulation.

Choose one of these keywords:

novell-ether--Enter to specify Novell IPX over Ethernet using Novell's variant of IEEE 802.2 encapsulation.
arpa--Enter when the Novell systems must communicate with other vendors' systems such as DEC VAX/VMS. In this case, Ethernet-style encapsulation is used with a protocol type of 8137.

Example

novell encapsulation arpa

[no] novell helper-address net.host

Forwards broadcast packets that match the access list specified by the novell helper-list subcommand. Useful for hosts that use a protocol other than SAP to advertise their availability.

net.host--The network and host address to which broadcast packets are forwarded.

Example

novell helper-address 3abc.0000.0c00.1ac9

[no] novell helper-list access-list-number

Forwards packets that pass the specified Novell access list to the Novell helper host. The no form disables the function.

access-list-number--The access list number specified in the Novell access-list command.

Example

novell helper-list 801

[no] novell input-network-filter access-list-number

Interface subcommand that explicitly specifies the networks that are added to the Novell IPX routing table. The no form disables the function.

access-list-number--The access list number specified in the novell access-list command.

Example

novell input-network-filter 801

[no] novell input-sap-filter access-list-number

Explicitly specifies the services that are added to the Novell SAP table.
The no form disables this function.

access-list-number--A SAP access list number from 1000 to 1099.

Example

novell input-sap-filter 1000

[no] novell network number

Enables and disables Novell routing on a particular interface.

number--Number of the Novell network to which the interface is attached.

Example

novell network 5e

[no] novell output-network-filter access-list-number

Explicitly specifies the list of networks that are sent in routing updates. The no form disables the function.

access-list-number--The access list number specified in the novell access-list command.

Example

novell output-network-filter 821

[no] novell output-sap-delay delay

Establishes a delay between SAP packets so that the router interface operates at the slower speed of the Novell server. The no form disables
the mechanism.

delay--The delay between SAP packets in milliseconds.

Example

novell output-sap-delay 200

[no] novell output-sap-filter access-list-number

Explicitly specifies the list of services that are included in a SAP update. The no form disables this function.

access-list-number--A SAP access list number from 1000 to 1099.

Example

novell input-sap-filter 1000

[no] novell route-cache

Enables or disables Novell fast switching. Default is enabled.

[no] novell router-filter access-list-number

Interface subcommand that specifies or removes the list of routers from which data will be accepted.

access-list-number--Access list number specified in the novell access-list command.

Example

novell router-filter 823

[no] novell router-sap-filter access-list-number

Configures the routers to filter Novell SAP messages. The no form removes the filters.

access-list-number--A SAP Novell access list from 1000 to 1099. Defines the specific router from which SAP updates will be accepted or denied.

Example

novell router-sap-filter 1000

novell sap-interval interval

Establishes less frequent SAP update interval for use over slow links. Default is 1 minute.

interval--Number of minutes between SAP updates. If interval is 0, periodic updates are not sent. A message is sent only when the server first appears and when it goes down.

Example

novell sap-interval 5

[no] novell source-network-update

When enabled, repairs corrupted network numbers by setting the source network field of any packet with a hop count of zero to the local network number.

[no] novell update-time seconds

Allows the Novell routing update timers to be set individually for each interface. This command can be used only in an all-Cisco environment, and all timers should be the same for routers connected to the same network segment. The no form restores the default of 60 seconds.

seconds--The interval between updates. Minimum is 10.

Example

novell update-time 40

Novell Show Commands

Command	Display
show novell cache	List of fast-switching cache entries.
show novell interface [interface]	Novell parameters configured on the interface.
show novell route	Novell routing table.
show novell servers	Servers discovered through SAP advertisements.
show novell traffic	Information about Novell packets transmitted and received including number and type.

PUP Commands

[no] pup routing

Enables or disables PUP routing.

[no] pup address

Enables or disables PUP routing on a particular interface.

address--The desired PUP address of the interface.

Example

pup 10#371

pup map address

Maps a PUP network onto one subnetted IP network.

address--Network number of the major network over which the PUP network is overlaid.

Example

pup map 10#371

[no] pup helper-address address

Sets the helper address so that broadcasts to the PUP Miscellaneous Services socket can be forwarded to another network (the helper address) where the appropriate servers can be found.

address--The PUP address of the desired server.

Example

pup helper-address 10#371

PUP Show Commands

Command	Display
show pup arp	PUP-specific ARP entries.
show pup route	Routing entries obtained from the PUP routing protocol.
show pup traffic	Statistical summaries of PUP packets.

VINES Global Configuration Commands

[no] vines access-list number {permit|deny} IP source-address
source-mask dest-address dest-mask
[no] vines access-list number {permit|deny} protocol source-address source-mask source-port dest-address dest-mask dest-port

Commands create or delete a VINES access list.

number--Access list number from 1 to 100.
permit or deny--Specifies the permit or deny condition.
protocol--An integer between 1 and 255, or one of the following protocols:

: SPP--Sequence Packets Protocol
: RTP--Routing Table Protocol
: ARP--Address Resolution Protocol
: IPC--Interprocess Communications
: ICP--Internet Control Protocol

source-address and dest-address--VINES addresses written in the standard form.
source-mask and dest-mask-- VINES addresses that indicate the bits in the corresponding address that should be ignored.
source-port and dest-port--Port numbers expressed as integers from 0 to 65535.

Examples

vines access-list 1 permit IP 0:1 ffffffff:0 0:1 ffffffff:0
vines access-list 1 deny IP 0:0 ffffffff:ffff 0:0 ffffffff:ffff
no vines access-list 1

[no] vines host name address

Adds or deletes an entry in the VINES name-to-address mapping table. Once entered, a VINES name can be used anywhere that a VINES address is requested.

name--The name of a VINES host. It can be any length.
address--The VINES address expressed in the form network:subnet.

Example

vines host STUFF 0027AF92:8001

[no] vines routing [address]

Enables or disables VINES routing.

address--Specifies the VINES address of the router. The format is network:subnet. The subnet must always be 1. The address argument is not necessary for Ethernet interfaces, because the router automati-cally maps itself into the VINES address space that is reserved for the router.

Example

vines routing 3001082D:1

VINES Interface Subcommands

[no] vines access-group list

Assigns an outgoing VINES access list to the defined interface. The no form removes the access list.

list--Number of an access list defined with the vines access-list command.

Example

vines access-group 2

[no] vines arp-enable

Enables or disables the processing of ARP packets received on the defined interface. When enabled, the router responds to ARP packets and assigns network addresses to clients.

vines encapsulation {arpa|snap|vines-tr}

Sets the MAC-level encapsulation used for VINES broadcasts on the defined interface. The current defaults are: arpa for Ethernet lines,
snap for IEEE 802.2 media, and vines-tr for Token Rings.

[no] vines metric [number]

Enables or disables the processing of VINES processing on this interface.

number--The VINES delay metric, which is used in routing updates. If this argument is not supplied, the system automatically chooses a reasonable metric value based on the delay value set for the defined interface.

[no] vines redirect-interval [number]

Determines how frequently the router sends an ICP redirect message on a given interface.

number--The minimum number of seconds that must pass before the router sends redirect messages. If the value for number is 0, the router will never send redirects on this interface.

Example

vines redirect-interval 0

[no] vines serverless

Configures a Banyan VINES network without a server. This command can be used on several routes to build a path to a network that contains servers. The no vines serverless command is the default.

VINES Show Commands

Command	Display
show vines host [name]	Contents of the VINES name table.
show vines interface [interface]	VINES parameters configured on the interface.
show vines neighbors [address]	Contents of the VINES neighbor table maintained by this router.
show vines route [address]	Contents of the VINES routing table.
show vines traffic	Statistics kept about VINES protocol traffic.

XNS Global Configuration Commands

[no] access-list number {permit|deny} XNS-source-network[.source-address[source-mask]]XNS-destination-network[.destination-address[destination-mask]]

Configures or removes an XNS access list.

number--Access list number in the range from 400 to 499.
permit or deny--Specifies the filtering action.
XNS-source-network--The XNS source network.
.source-address--Address of the XNS-source-network.
source-mask--Mask for the source-address.
XNS-destination-network--The XNS destination network.
.destination-address--Address of the XNS-destination-network.
destination-mask--Mask for the destination-address.

Examples

access-list 400 deny -1 2
access-list 400 deny 21.0000.0c00.1111
access-list 400 deny 21.011.1622.0015 0000.0000.0000 31.01D3.020C.0022 0000.0000.0000

[no] access-list number {deny|permit} XNS-protocol
source-network[.source-address [source-mask]] source-socket
destination-network[.destination-address [destination-mask]] destination-socket

Configures or removes an extended XNS access list.

number--Access list number in the range from 500 to 599.
permit or deny--Specifies the filtering action.
XNS-protocol--XNS protocol number.
source-network--The XNS source network.
.source-address--Address of the XNS-source-network.
source-mask--Mask for the source-address.
destination-network--The XNS destination network.
.destination-address--Address of the XNS-destination-network.
destination-mask--Mask for the destination-address.

Examples

access-list 500 deny 1 1 1234 2 1234
access-list 500 deny 1 21.110011.1622.001500.0000.
0000 31.01D3.020C.0022 0000.0000.0000. 1234

no access-list number

Removes the specified XNS access list.

number--Access list number.

Example

no access-list 401

[no] xns forward-protocol type

Defines the protocol types that will be forwarded when a broadcast is received on an interface that has an XNS helper address. The no form disables forwarding of the specified protocol.

type--A decimal number corresponding to an appropriate XNS protocol.

Example

xns forward-protocol 2

[no] xns maximum-paths paths

Sets the maximum number of equal-cost paths the router will use. Default is 1.

paths--Maximum number of paths.

Example

xns maximum-paths 2

[no] xns route network host-address

Adds a static route to the XNS routing table.

network--The destination XNS network number expressed in decimal format.
host-address--A decimal XNS network number and the hexadecimal host number.

Example

xns route 25 51.0456.acd3.1243

[no] xns routing [address]

Enables XNS routing. The no form disables all XNS packet processing.

address--XNS address the router should use. If the argument address is omitted, the router uses the first Token Ring, FDDI, or Ethernet interface hardware address it finds.

Example

xns routing 0123.4567.abcd

[no] xns ub-emulation

Enables Ungermann-Bass Net/One routing. Causes hello packets and routing updates in Ungermann-Bass format to be sent out through all
the interfaces on which XNS is enabled. Also causes the router to get
its routing information for remote networks from Ungermann-Bass updates. The no form restores the router to standard XNS mode.

[no] xns ub-routing

Makes the router behave exactly as it would if you issued the xns
ub-emulation command for the system as a whole, as well as the
xns hear-rip, xns flood broadcast allnets, and xns flood specific allnets commands for all interfaces on which XNS is enabled.

XNS Interface Subcommands

[no] xns access-group number

Assigns an XNS access list number to an interface. Also compares all XNS packets that ordinarily would have been forwarded by the router through this interface to the access list. If the packet fails the access list, it is discarded and not transmitted.

number--Access list number.

Example

xns access-group 500

xns encapsulation {snap|ub|3com}

Selects encapsulation for a Token Ring interface. Default is snap.

snap-- Token Ring in an IBM installation.
ub--Ungermann-Bass.
3com--Older 3Com Corporation products.

Example

xns encapsulation ub

[no] xns flood broadcast allnets

Floods packets with destinations of -1.FFFF.FFFF.FFFF.

[no] xns flood broadcast net-zero

Floods packets with destinations of 0.FFFF.FFFF.FFFF.

[no] xns flood specific allnets

Floods packets with destinations of -1.

[no] xns hear-rip [access-list]

Configures the router to receive RIP updates on some interfaces as if they were Ungermann-Bass updates.

access-list--XNS access list. Include this argument when you only want certain routes to be learned through standard RIP.

[no] xns helper-address host-address

Sets a helper address to forward broadcasts. The no form disables XNS helpering.

host-address--Combination of the network and host addresses in dotted decimal format.

Example

xns helper-address -1.FFFF.FFFF.FFFF

[no] xns input-network-filter access-list-number

Defines the networks that are added to your router's routing table.

access-list-number--Access list number specified in the XNS
access-list command.

Example

xns input-network-filter 429

[no] xns network number

Assigns a decimal XNS network number to an interface, thereby enabling that interface to run XNS protocols.

number--Network number in decimal format.

Example

xns network 20

[no] xns output-network-filter access-list-number

Defines the list of networks your router sends out in routing updates.

access-list-number--Access list number.

Example

xns output-network-filter 439

[no] xns route-cache

Enables or disables fast switching.

[no] xns router-filter access-list-number

Controls the list of routers from which data will be accepted.

access-list-number--Access list number specified in the XNS
access-list command.

Example

xns router-filter 466

xns update-time seconds

Sets the XNS routing update timers. Use this command only in an all-Cisco environment. Make sure that all timers are the same for routers attached to the same network segment. Default is 30 seconds.

seconds--Frequency with which RIP sends routing table updates to
its neighbor routers. Must be greater than or equal to 10 seconds.

Example

xns update-time 20

XNS Show Commands

Command	Display
show xns cache	List of fast-switching cache.
show xns interface [interface]	XNS parameters configured on the interface
show xns route [network]	XNS routing table.
show xns traffic	Packet statistics including packets sent, received, and forwarded.

Bridging Configuration

Transparent Bridging Global Configuration Commands

[no] access-list list {permit|deny} address mask

Prepares access control information for filtering of frames by canonical (Ethernet ordered) MAC address. The no form removes a single access list entry.

list--An integer from 700 to 799 selected for the list.
permit or deny--Indicates whether the frame is permitted or denied.
address--48-bit canonical MAC address written in dotted triplet form.
mask--48-bit canonical MAC address written in dotted triplet form. The ones bits in the mask argument are the address bits to be ignored.

Examples

access-list 700 deny 0800.2000.0000 0000.00FF.
  FFFF
access-list 700 permit 0000.0000.0000 FFFF.FFFF.
  FFFF

[no] access-list list {permit|deny} type-code wild-mask

Prepares access control information for filtering frames by protocol type. The no form removes a single access list entry.

list--Unique number from 200 to 299 that identifies the list.
permit or deny--Indicates whether the frame is permitted or denied.
type-code--16-bit hexadecimal number with a leading "0x."
wild-mask--16-bit hexadecimal number whose ones bits correspond to bits in the type-code argument that the router should ignore when making a comparison.

Examples

access-list 201 permit 0x6005 0x0000
access-list 201 deny 0x0000 0xFFFF

[no] access-list list {permit|deny} source-addr source-mask dest dest-mask offset-into-packet size:1-4 operation operand

Defines an extended access list for finer control of bridged traffic.

list--An integer from 1100 through 1199.
permit or deny--Indicates whether the frame is permitted or denied.
source-addr--MAC Ethernet address in the form xxxx.xxxx.xxxx.
source-mask--Mask of MAC Ethernet source address bits to be ignored.
dest--MAC Ethernet values used for matching the destination address of a packet.
dest-mask--Mask of MAC Ethernet destination address bits to be ignored.
offset-into-packet--With the size argument, defines a range of values that must be satisfied in the access list. Specified in decimal or hexadecimal format in the form 0xnn.
size--An integer from 1 to 4.

: The argument operator can be one of these keywords:
: lt--less than
: gt--greater than
: eq--equal
: neq--not equal
: and--bitwise and
: xor--bitwise exclusive or
: The argument operand is a value to be compared to or masked against.

Example

access-list 1102 permit 000c.1b00.0000 0000.00ff.
ffff 0000.0000.0000 ffff.ffff.ffff 0x1e 2 lt 
0x55aa

[no] bridge group acquire

Enables or disables the dynamic learning process. Default is enabled.

group--Spanning tree group number.

Example

bridge 1 acquire

[no] bridge group address MAC-address [forward|discard] [interface]

Adds or removes an address from the forwarding database. The no form followed by the MAC address removes an address from the forwarding database.

group--Spanning tree group number.
MAC-address--48-bit dotted triplet canonical (Ethernet ordered) hardware address such as those displayed by the EXEC show arp command. The address can be a station address, the broadcast address, or a multicast destination address.
forward--Enables the bridge to forward a frame sent from or destined for the specified address.
discard--Instructs the bridge to discard frames sent from or destined for the specified address without further processing.
interface--Specifies an interface on which the address can be reached.

Example

bridge 1 address 0800.cb00.45e9 forward ethernet 1

[no] bridge group domain domain-number

Enables or disables multiple domain spanning trees. Only those devices in the domain can share spanning tree information. This command works only when the bridge group is running the IEEE spanning tree protocol. Non-Cisco bridges might not work correctly on networks containing Cisco bridges' domain numbers other than zero.

group--Bridge group number between 0 and 10 as specified by the bridge group protocol ieee command.
domain-number--Unique domain number that you choose. The domain number zero is required for communicating with IEEE bridges that do not support this domain extension. Default is zero.

Example

bridge 1 domain 3

bridge group forward-time seconds

Sets the default of the forward delay interval; that is, the amount of time the bridge listens for topology change information after an interface has been activated for bridging and before forwarding actually begins. Default is 30 seconds.

group--Spanning tree group number.
seconds--The forward delay interval from 10 to 200 seconds.

Example

bridge 1 forward-time 60

bridge group hello-time seconds

Specifies the interval between Bridge Protocol Data Units (BPDUs). Default is 1 second.

group--Spanning tree group number.
second--Time interval, from 1 to 10 seconds.

Example

bridge 2 hello-time 5

[no] bridge group lat-service-filtering

Enables or disables LAT service filtering. The no form restores the default, which is disabled.

group--Bridge group.

bridge group max-age seconds

Specifies the interval that the bridge waits to hear BPDUs from the root bridge before recomputing the bridge spanning tree topology. Default
is 15 seconds.

group--Spanning tree group number.
second--Interval that the bridge will wait to hear BPDUs from the root bridge.

Example

bridge 2 max-age 20

[no] bridge group multicast-source

Allows or disallows the forwarding of frames with multicast source addresses. This command does not affect the learning of frames.

group--Spanning tree group number.

Example

bridge 2 multicast-source

bridge group priority number

Sets the priority of an individual bridge for selection as the root bridge. A lower number increases the likelihood for selection. Minimum = 1, maximum = 65000, default = 128.

group--Spanning tree group number.
number--Priority number from 1 to 65000.

Example

bridge 2 priority 1000

[no] bridge group protocol {dec|ieee}

Defines or removes a spanning tree protocol and spanning tree group.

group--Spanning tree group number from 1 to 9.
ieee or dec--The protocol to use.

Example

bridge 9 protocol dec

Transparent Bridging Interface Subcommands

[no] bridge-group group

Assigns the network interface to the spanning tree group. The no form removes the network interface.

group--Spanning tree group number.

Example

bridge-group 2

[no] bridge-group group [cbus-flooding]

Assigns each network interface to a spanning-tree group.

group--Spanning tree group number.
cbus-flooding--Enables bridge flooding on the CSC-CCTL2
bus controller microcode and provides support for the CSC-MEC,
CSC-C2/FCIT, and CSC-C2/CTR interface cards. Default is
disabled.

bridge-group group circuit number

Establishes load balancing, marking a serial interface as belonging to circuit group number. Parallel serial interfaces on both bridges all must
be flagged as being members of the same circuit group.

group--Spanning tree group number.
number--Circuit group number expressed as an integer from 1 to 9.

Example

bridge-group 3 circuit 1

[no] bridge-group group input-address-list list

Assigns or removes an access list to or from a particular interface for filtering by the MAC source addresses.

group--Spanning tree group number.
list--Access list number between 200 and 299 assigned with the bridge access-list command.

Example

bridge-group 1 input-address-list 200

[no] bridge-group group input-lat-service-deny grouplist

Specifies the group codes with which to deny access upon input. Default is no filtering.

group--Spanning tree group number.
grouplist--Specifies the LAT groups. Single numbers and ranges
are permitted.

Example

bridge-group 1 input-lat-service-deny 1 5 12-14

[no] bridge-group group input-lat-service-permit grouplist

Specifies the group codes with which to permit access upon input. Default is no filtering.

group--Spanning tree group number.
grouplist--Specifies the LAT groups. Single numbers and ranges
are permitted.

Example

bridge-group 1 input-lat-service-permit 1 5 12-14

bridge-group group input-lsap-list list

Adds or removes a filter for IEEE 802-encapsulated packets on input. This access list is applied to all IEEE 802 frames received on that interface prior to the bridge-learning process.

group--Spanning tree group number.
list--Access list number between 200 and 299 assigned with the bridge access-list command.

Example

bridge-group 2 input-lsap-list 250

bridge-group group input-type-list list

Adds or removes a filter for Ethernet- and SNAP-encapsulated packets
on input. The bridge applies the access list to all Ethernet frames received on that interface prior to the bridge learning process.

group--Spanning tree group number.
list--Access list number between 200 and 299 assigned with the bridge access-list command.

Example

bridge-group 4 input-type-list 200

[no] bridge-group group lat-compression

Reduces the amount of bandwidth that LAT traffic consumes on serial interfaces. LAT compression can be specified for serial compression only.

group--Spanning tree group number.

Example

bridge-group 2 lat-compression

[no] bridge-group group output-address-list list

Assigns or removes an access list to or from a particular interface for filtering by the MAC destination addresses.

group--Spanning tree group number.
list--Access list number between 200 and 299 assigned with the bridge access-list command.

Example

bridge-group output-address-list 204

bridge-group group output-lat-service-deny grouplist

Specifies the group codes with which to deny access upon output. Default is no filtering.

group--Spanning tree group number.
grouplist--Specifies the LAT groups. Single numbers and ranges
are permitted.

Example

bridge-group 1 output-lat-service-deny 1 5 12-14

bridge-group group output-lat-service-permit grouplist

Specifies the group codes with which to permit access upon output. Default is no filtering.

group--Spanning tree group number.
grouplist--Specifies the LAT groups. Single numbers and ranges
are permitted.

Example

bridge-group 1 output-lat-service-permit 1 5 12-14

bridge-group group output-lsap-list list

Adds or removes a filter for IEEE 802-encapsulated packets on output. This access list is applied just before sending out a frame to an interface.

group--Spanning tree group number.
list--Access list number between 200 and 200 assigned with the bridge access-list command.

Example

bridge-group 3 output-lsap-list 223

bridge-group group output-type-list list

Adds or removes a filter for Ethernet- and SNAP-encapsulated packets on output. The bridge applies the access list just before sending out a frame to an interface.

group--Spanning tree group number.
list--Access list number between 200 and 299 assigned with the bridge access-list command.

Example

bridge-group 5 output-type-list 299

[no] bridge-group group path-cost cost

Sets or removes a different path cost. Default is 100.

group--Spanning tree group number.
cost--Integer from 0 to 65535. Higher values indicate higher costs.

Example

bridge-group 2 path-cost 20

bridge-group group priority number

Assigns a priority to an interface. This priority is used in tie-breaking when computing a network topology. Default is 0.

group--Spanning tree group number.
number--Priority value expressed as an integer from 0 to 255.
The lower the number, the more likely it is that the bridge on
this interface will be chosen as the root.

Example

bridge-group 1 priority 10

[no] ethernet-transit-oui [90-compatible|standard|cisco]

Chooses the OUI Code to be used in the encapsulation of Ethernet
Type II frames across Token Ring backbone networks.

Transparent Bridging Show Commands

Command	Display
show bridge [options]	Classes of entries in the bridge-forwarding database.
show span	Current, known spanning-tree topology, including whether or not LAT group code filtering is in effect.

IBM Connectivity

LLC2 Interface Subcommands

llc2 ack-delay-time milliseconds

Controls the maximum amount of time that the router allows incoming I-frames to stay unacknowledged. Minimum = 1, maximum = 60000, default = 3200.

milliseconds--Number of milliseconds that the router allows incoming I-frames to stay unacknowledged, even if it has not received the number of frames specified with the llc2 ack-max command.

Example

llc2 ack-delay-time 800

llc2 ack-max packet-count

Controls the maximum number of information frames (I-frames) received by the router before it must send an acknowledgment to these frames. Minimum = 1, maximum = 255, default = 3.

packet-count--The number of frames.

Example

llc2 ack-max 5

llc2 idle-time milliseconds

Controls the frequency of polls during periods of idle traffic.
Minimum = 1, maximum = 60000, default = 10000.

milliseconds--The number of milliseconds that pass when there is no traffic before the LLC2 station sends a Receiver Ready frame.

Example

llc2 idle-time 1500

llc2 local-window packet-count

Controls the maximum number of information frames sent by the router before it waits for an acknowledgment to these frames.
Minimum = 1, maximum = 127, default = 7.

packet-count--Maximum number of I-frames that can be sent before the router must wait for an acknowledgment.

Example

llc2 local-window 5

llc2 n2 retry-count

Controls the number of times the router retries operations such as sending an unacknowledged frame or polling a remote busy station.
Minimum = 1, maximum = 255, default = 8.

retry-count--Number of times router should retry various operations.

Example

llc2 n2 5

llc2 t1-time milliseconds

Controls how long the router waits for an acknowledgment to transmitted I-frames. Minimum = 1, maximum = 60000, default = 1000.

milliseconds--Maximum number of milliseconds the T1 timer should wait for an acknowledgment from the receiver that an I-frame has been received.

Example

llc2 t1-time 10000

llc2 tbusy-time milliseconds

Controls the amount of time that the router waits while the other LLC2 station is in a busy state before attempting to poll the remote station again. Minimum = 1, maximum = 60000, default = 9600.

milliseconds--Number of milliseconds that the router waits.

Example

llc2 tbusy-time 10000

llc2 tpf-time milliseconds

Controls the amount of time the router waits for a final response to a poll frame that it sent before the router resends the original poll frame. Minimum = 1, maximum = 60000, default = 1000.

milliseconds--Number of milliseconds that the router waits.

Example

llc2 tpf-time 10000

llc2 trej-time milliseconds

Controls the amount of time the router waits for a resend of a rejected frame before sending the reject (REJ) command to the remote station. Minimum = 1, maximum = 60000, default = 3200.

milliseconds--Number of milliseconds that the router waits.

Example

llc2 trej-time 30000

llc2 xid-neg-val-time milliseconds

Controls the frequency of exchange of identification (XID) frame transmissions by the router. It is recommended that you do not change this parameter unless asked to by technical personnel. Minimum = 1, maximum = 60000, default = 0.

milliseconds--Number of milliseconds after which the router transfers XID frames to other LLC2-speaking stations.

Example

llc2 xid-neg-val-time 10

llc2 xid-retry-time milliseconds

Controls how long the router waits for a reply to the exchange of identification (XID) frames that it sends to remote stations.
Minimum = 1, maximum = 60000, default = 60000.

milliseconds--Maximum number of milliseconds that the router should wait. The value for this command should be larger than the value in the t1-time command.

Example

llc2 xid-retry-time 10000

LLC2 Show Command

Command	Display
show llc2	State of the LLC2 connections.

SDLC Interface Subcommands

[no] sdlc address hexbyte

Assigns the set of secondary stations attached to the serial link.

hexbyte--The hexadecimal address of the secondary station.

Example

sdlc address c1

[no] sdlc fair-poll-timer milliseconds

Specifies how long the router can continue to send output before it begins polling the secondary station for input. The no form restores the default, which is 500 milliseconds. Minimum = 100, maximum = 10000.

milliseconds--Number of milliseconds the router has for uninterrupted sending of output.

Example

sdlc fair-poll 750

[no] sdlc frmr-disable

Indicates whether the secondary devices off this link support Frame Rejects (FRMRs). The no version restores the default, which is enabled.

sdlc holdq SDLC-address queue-size

Controls the maximum number of outstanding packets that can be held for transmission to a remote SDLC device. Minimum = 1,
maximum = none, default = 12.

SDLC-address--The SDLC address for which you want to specify a queue size.
queue-size--The maximum number of outstanding packets held for transmission.

Example

sdlc holdq c1 30

sdlc k windowsize

Controls the router's local send window size. Minimum = 1,
maximum = 7, default = 7.

windowsize--The maximum number of I-frames the router receives before the other end must stop sending and wait for an acknowledgment.

Example

sdlc k 7

sdlc n1 bit-count

Controls the maximum number of bits allowed for incoming frames on this link. Minimum = 1, maximum = 12000, default = 12000.

bit-count--Maximum bit size. Frames that exceed this size are rejected.

Example

sdlc n1 3000

sdlc n2 retry-count

Controls the number of times the router attempts to retry an operation that has timed out. Minimum = 1, maximum = 255, default = 20.

retry-count--Number of retry attempts. When this number is exceeded, the SDLC station terminates its session with the other station.

Example

sdlc n2 5

[no] sdlc poll-limit-value count

Controls how many times the router can poll a particular secondary station before it must poll the next station in the poll list. The no form restores the default, which is 1. Minimum = 1, maximum = 10.

count--Maximum number of times the router can poll one station before proceeding to the next.

Example

sdlc poll-limit-value 3

[no] sdlc poll-pause-timer milliseconds

Controls how long the router pauses between sending each series of poll frames. The no version restores the default, which is 100 milliseconds. Minimum = 100, maximum = 10000.

milliseconds--Number of milliseconds that the router waits before sending.

Example

sdlc poll-pause timer 150

sdlc t1 timeout

Controls the amount of time that the router waits for a reply to a frame or sequence of frames. Minimum = 1, maximum = 64000,
default = 3000.

timeout--The time in milliseconds that the router waits.

Example

sdlc t1 6000

Source-Route Bridging Global Configuration Commands

[no] access-list list {permit|deny} type-code wild-mask

Configures the access list mechanism for filtering frames by protocol type.

list--Access list number.
permit or deny--Specify permit to permit the frame; specify deny to deny the frame.
type-code--LSAP type code for 802-encapsulated packets or SNAP type code for SNAP-encapsulated packets. 16-bit hexadecimal number.
wild-mask--16-bit hexadecimal number whose ones bits correspond to the bits in the type-code, indicating that the router should ignore these bits when making a comparison.

Example

access-list 201 permit 0xE0E0 0x0101

[no] lnm snmp-only

Prevents any LNM stations from modifying parameters in the router. The no form allows modifications.

[no] locaddr-priority-list list address-number queue-keyword

Establishes queuing priorities based on the address of the logical unit (LU).

list --An arbitrary integer between 1 and 10 that identifies the LU address priority list selected by the user.
address-number--Value of the LOCADDR= parameter on the LU macro; this is a one-byte address of the LU in hex.
queue-keyword--A priority queue name; one of high, medium, normal, or low.

Example

locaddr-priority-list 1 02 high

[no] netbios access-list bytes name {permit|deny} offset pattern

Defines the offset and patterns with which to match byte offsets in NetBIOS packets.

name--Name of the access list being defined.
permit or deny--Specifies the permit or deny condition.
offset--Decimal number indicating the number of bytes into the packet where the byte comparison should begin. An offset of zero points to the beginning of the NetBIOS delimiter string (0xffef)
at the start of each NetBIOS packet.
pattern--Hexadecimal string of digits representing a byte pattern.

Example

netbios access-list bytes marketing permit 
3 0xabcd

[no] netbios access-list host name {permit|deny} pattern

Assigns the name of the access list to a station or set of stations on the network. The no form removes an entire list or the entry specified with the pattern argument.

name--Name of the access list being defined.
permit or deny--Specifies the permit or deny condition.
pattern--Set of characters representing the name of the station, or
a combination of characters and pattern matching symbols that establish a pattern for a set of NetBIOS station names.

Example

netbios access-list host marketing permit ABCD

[no] netbios name-cache MAC-address NetBIOS-name interface-name
[no] netbios name-cache MAC-address NetBIOS-name ring-group
number
no netbios name-cache MAC-address NetBIOS-name

Defines a static NetBIOS name cache entry. The no form removes the entry.

NetBIOS-name--Server name linked to the MAC address.
MAC-address--MAC address.
interface-name--Specifies that the link is accessible locally.
ring-group number --Specifies that the link is accessible remotely.

Example

netbios name-cache 0110.2222.3333 DEF ring-group 2

[no] netbios name-cache query-timeout seconds

Specifies the dead time for NetBIOS name caching that starts when a host sends any ADD_NAME_QUERY, ADD_GROUP_NAME, or STATUS_QUERY frame. The router drops any repeat or duplicate frame sent by the same host during this time period. The no form restores the default of 6 seconds.

seconds--Time period in seconds.

Example

 netbios name-cache query-timeout 15

[no] netbios name-cache recognized-timeout seconds

Specifies the dead time that starts when a host sends any NAME_RECOGNIZED frames. The router drops any duplicate frame sent by the same host during this time period. The no form restores the default of 1 second.

seconds--Time period in seconds.

Example

 netbios name-cache recognized-timeout 3

[no] netbios name-cache timeout minutes

Enables NetBIOS name caching and specifies the timeout for entries.
The no form restores the default of 15 minutes.

minutes--Timeout period in minutes.

Example

netbios name-cache timeout 10

rif MAC-address [RIF-string] [interface-name|ring-group ring]
no rif MAC-address [interface-name|ring-group ring]

Inserts or removes an entry into the RIF cache.

MAC-address--12-digit hexadecimal string written as a dotted triplet.
RIF-string--Series of four-digit hexadecimal numbers, each series separated by a dot (.).
interface-name--The interface from which this RIF entry would have arrived.
ring-group ring--The ring group number from which this RIF entry would have arrived.

Example

rif 1000.5A01.0203 0830.0155.100a.5550

[no] rif timeout minutes

Defines the period of inactivity allowed before unused RIF cache entries are removed. The no form resets the RIF timeout period to the default, which is 15 minutes.

minutes--Number of minutes.

Example

rif timeout 20

[no] source-bridge enable-80d5

Enables or disables the conversion of frames between Token Ring LLC2 and Ethernet Type II 0x80d5 format. When disabled, Token Ring LLC2 frames are converted to IEEE 802.3 format LLC2 frames. This command applies only to frames going through the Source-Route Translational Bridge (SR/TLB) and not to frames going across a Source-Route Transparent (SRT) bridge.

[no] source-bridge fst-peername local-interface-address

Sets up a Fast Sequenced Transport (FST) peer name; this is the first step in configuring a remote source-route bridge to use FST.

local-interface-address--Assigns the IP address to the local router.

Example

source-bridge fst-peername 150.136.64.98

[no] source-bridge largest-frame ring-group size

Defines the largest frame size to communicate with all peers in the ring group.

ring-group--Ring group number.
size--Maximum frame size. The legal values for this argument are 516, 1500, 2052, 4472, 8144, 11407, and 17800 bytes.

Example

source-bridge 5 2052

[no] source-bridge passthrough ring-number

Specifies that frames destined to ring number should never be terminated with Local Acknowledgment. The no form removes this restriction.

ring-number--Ring number.

Example

source-bridge passthrough 5

[no] source-bridge proxy-netbios-only

Allows using proxy explorers only for the NetBIOS name caching function and not for their general local response to explorers.

[no] source-bridge remote-peer ring-group interface [interface-name
MAC-address] [lf size] [version number]

Defines or removes a serial interface over which to run bridged Token Ring traffic.

ring-group--Ring group number.
interface-name--Name of the serial interface.
MAC-address--MAC address; required for nonserial interfaces.
lf size--Largest frame size to send to the remote peer.
version number--Specifies the forced RSRB protocol version number for the remote peer.

Example

source-bridge remote-peer 5 interface serial0

[no] source-bridge remote-peer ring-group tcp IP-address [lf size]
[local-ack] [version number]
[no] source-bridge remote-peer ring-group tcp IP-address
[backup-group group-number]
[no] source-bridge remote-peer ring-group fst IP-address [lf size]
[version number]

Defines or removes a remote peer for the specified ring group.

ring-group--Ring group number.
IP-address--IP address.
lf size--Largest frame size to send to the remote peer.
local-ack--Specifies that Local Acknowledgment should be used
for LLC2 session going to this remote peer.
version number--Specifies the forced RSRB protocol version number for the remote peer.
backup-group group-number--Backup group number.
fst--Specifies the Fast Sequenced Transport (FST).

Example

source-bridge remote-peer 5 tcp 131.108.2.29

[no] source-bridge ring-group ring-number

Establishes or removes a ring group.

ring-group--Ring group number.

Example

source-bridge ring-group 5

[no] source-bridge sap-80d5 SAP

When used in conjunction with the source-bridge enable-80d5 command, enables or disables the translation of Token Ring LLC2
frames to Ethernet Type 2 80d5 format frames.

If the source-bridge enable-80d5 command is not issued, this command has no effect. You can issue multiple commands, one SAP
per line.

SAP--Destination service access point (SAP).

Example

source-bridge sap-80d5 1c

[no] source-bridge sdllc-local-ack

Activates/deactivates Local Acknowledgment for SDLLC sessions.

[no] source-bridge tcp-queue-max number

Sets the maximum output TCP queue length, in packets, that the router will accept for routing to remote source-route bridge peers. The no version restores the default of 100.

number--Number of packets.

Example

source-bridge tcp-queue-max 125

[no] source-bridge transparent ring-group pseudo-ring bridge-number
tb-group enable-name-cache

Establishes a Source-Route Translational Bridging (SR/TLB) link between the source-bridged ring-group and the transparent bridge group tb-group.

ring-group--Virtual ring group created by the source-bridge ring-group command.
pseudo-ring--Unique ring number used to represent the transparent bridging domain to the source-route bridging domain.
bridge-number--Pseudo-bridge that attaches the ring-group to the pseudo-ring.
tb-group--Number of the transparent bridge group that you want to tie into your source-route bridging domain.
enable-name-cache--Enables the NetBIOS name cache.

Example

source-bridge transparent 10 3 1 1

Source-Route Bridging Interface Subcommands

[no] access-expression {in|out} expression

Defines an access expression for a given interface--for Token Ring only.

in or out--Use in to specify that the expression applies to packets entering the interface. Use out to specify that it applies to packets leaving the interface.
expression--A Boolean access list expression containing one or more of the following:

: lsap(nnn)--LSAP access list nnn to be evaluated for this frame.
: type(nnn)--SNAP type access list to be evaluated for this frame.
: smac(nnn)--Access list to match the source MAC address of the frame.
: dmac(nnn)--Access list to match the destination MAC address of
the frame.
: netbios-host(name)--NetBIOS-host access list to be applied on NetBIOS frames traversing the interface.
: netbios-bytes(name)--NetBIOS-bytes access list to be applied on NetBIOS frames traversing the interface.

Example

access-expression in lsap(201 | (lsap(202) & dm
  ac(701))

[no] lnm alternate number

Enables an LRM other than the default LRM to change parameters. The no form restores the default of zero.

number--Integer between 0 and 3.

Example

lnm alternate 2

[no] lnm crs

Enables the Configuration Report Server (CRS), which keeps track of the current logical configuration of a Token Ring. Reports any changes to LNM. Also reports on various other activities such as the change of the Active Monitor on a Token Ring.

[no] lnm loss-threshold number

Configures the threshold of dropped frames when the router sends a message to all attached LNMs. Default is 10 (0.1%).

number--Number of frames dropped compared with number of frames forwarded, expressed as hundredths of a percent. Range:
0 to 9999.

Example

lnm loss-threshold 2

[no] lnm password number password

Assigns a password to a reporting link to prevent unauthorized access from an LRM to a bridge and to control access to the different reporting links.

number--Identifies the reporting link to which to apply the password.
password--Password you enter at the keyboard. It can contain 6 to 8 characters that can be any combination of letters and numbers and the characters @, #, $, and %.

Example

lnm password 4 yourpassword

[no] lnm rem

Enables or disables the Ring Error Monitor (REM), which monitors errors reported by any station on the ring. Also monitors whether the ring is in a functional state or in a failure state.

[no] lnm rps

Enables or disables the Ring Parameter Server (RPS), which ensures that all stations on a ring are using a consistent set of reporting parameters. Reports to LNM when any new station joins a Token Ring.

[no] lnm softerr number

Controls the frequency of error reports sent from stations on a Token Ring to the Ring Error Monitor. The no form restores the timer value to its default of 200 (two seconds).

number--Number of tens of milliseconds between error messages.

Example

lnm softerr 100

[no] locaddr-priority list

Assigns a priority group to an input interface.

list --An arbitrary, user-selected integer between 1 and 10 that identifies the LU address priority list.

Example

locaddr-priority 1

mac-address IEEE-address

Sets the MAC layer address. Forces the use of a different MAC address on the specified interface, thereby avoiding the TI MAC firmware problem. It is up the network administrator to ensure that no other host on the network is using that MAC address.

IEEE-address--48-bit IEEE MAC address written as a dotted triple of four-digit hexadecimal numbers.

Example

mac-address 79c1.39de.0003

[no] multiring {protocol-keyword|all|other}

Enables or disables the ability of the specified interface to collect and use source-route (RIF) information for routable protocols.

protocol-keyword, all or other--To enable the multiring for a single protocol, use one of the following keywords: apollo, appletalk, clns, decnet, ip, novell, vines, or xns. To enable the multiring for all frames, use all. To enable the multiring for a frame not included in the list, use other.

Example

multiring clns

[no] netbios enable-name-cache

Enables the NetBIOS name cache on the specified interface. By default the name cache is disabled. The no form restores the default.

[no] netbios input-access-filter bytes name

Defines or removes an access list filter on incoming messages.

name--Name of a NetBIOS access filter.

Example

netbios input-access-filter bytes marketing

[no] netbios input-access-filter host name

Defines or removes an access list filter on incoming messages.

name--Name of a NetBIOS access filter.

Example

netbios input-access-filter host marketing

[no] netbios output-access-filter bytes name

Defines or removes an access list filter on outgoing messages.

name--Name of a NetBIOS access filter.

Example

netbios output-access-filter bytes marketing

[no] netbios output-access-filter host name

Defines or removes an access list filter on outgoing messages.

name--Name of a NetBIOS access filter.

Example

netbios output-access-filter host marketing

[no] source-bridge local-ring bridge-number target-ring

Enables or disables source bridging on a specific interface.

local-ring--Ring number from 1 to 4095 for this interface's Token Ring.
bridge-number--Decimal number from 1 to 15 that uniquely identifies a bridge connecting the two rings.
target-ring--Decimal ring number of the destination ring on this router/bridge. It also must be unique within the bridged Token Ring network.

Example

source-bridge 129 1 130

[no] source-bridge input-address-list list

Interface subcommand that assigns an access list to a particular interface for filtering the Token Ring or IEEE 802 source addresses. The no version of this command removes the application of the access list.

list--Access list number.

Example

source-bridge input-address-list 201

source-bridge input-lsap-list list

Interface subcommand that alters IEEE 802-encapsulated packets on input. This access list is applied to all IEEE 802 frames received on that interface prior to the source-routing process. Specify the value zero to disable the filter.

list--Access list number.

Example

source-bridge input-lsap-list 201

source-bridge input-type-list list

Interface subcommand that filters SNAP-encapsulated packets on input. This access list is then applied to all SNAP frames received on that interface prior to the source-routing process. Specify the value zero to disable the filter.

list--Access list number.

Example

source-bridge input-type-list 201

[no] source-bridge max-hops count

Limits the maximum number of source-route bridge hops of your
network. The no form restores the count to the maximum value.

count--Defines the number of bridges that an explorer packet
can traverse.

Example

source-bridge max-hops 7

[no] source-bridge old-sna

Enables or disables a workaround for some source-route bridging behavior exhibited by older SNA nodes.

[no] source-bridge output-address-list list

Assigns or removes an access list to or from a particular interface for filtering the Token Ring or IEEE 802 destination addresses.

list--Access list number.

Example

source-bridge output-address-list 201

source-bridge output-lsap-list list

Filters IEEE 802-encapsulated packets on output. This access list is then applied just before sending out a frame to an interface. Specify zero to disable the filter.

list--Access list number.

Example

source-bridge output-lsap-list 201

source-bridge output-type-list list

Filters SNAP-encapsulated packets on output. This access list is then applied just before sending out a frame to an interface. Specify zero to disable the filter.

list--Access list number.

Example

source-bridge output-type-list 201

[no] source-bridge proxy-explorer

Enables or disables the proxy explorer function. Default is disabled.

[no] source-bridge route-cache [cbus]

Enables fast switching to allow for faster implementations of local source-route bridging between the 4- or 16-megabit token ring card or between two high-speed cBus token ring cards in the same router. By default, the system enables fast switching in the source-route bridging software. The no form restores the default, which is disabled.

[no] source-bridge spanning

Manually changes the forwarding state of spanning explorer packet. The no form disables forwarding.

Source-Route Bridging Show Commands

Command	Display
show llc2	State of the LLC2 connections.
show lnm bridge	All currently configured bridges and global bridging parameters.
show lnm config	Logical configuration of all bridges configured on this router.
show lnm interface [interface]	LNM parameters configured on the interface.
show lnm ring number	LNM parameters configured on the interface.
show lnm station	LNM-specific information about all known stations on the ring.
show local-ack	Current state of Local Acknowledgment connections.
show netbios-cache	Contents of the NetBios cache.
show rif	Contents of the RIF cache.
show source-bridge	Current source bridge configuration and statistics.

SDLLC Interface Subcommands

[no] sdllc partner MAC-address SDLC-address

Supports device-initiated connections for SDLLC.

MAC-address--Token Ring MAC address.
SDLC-address--SDLC serial line address.

[no] sdllc ring-largest-frame value

Indicates the largest I-frame size that can be sent or received by the LLC2 side of the SDLLC connection. The default value is 516 bytes.

value--Same as those for the largest-frame parameter of the source-bridge remote-peer command.

[no] sdllc sdlc-largest-frame address value

Indicates the largest I-frame size that can be sent or received by the SDLC station.

address--Station address.
value--Frame size in bytes; the default is 265 bytes.

[no] sdllc traddr xxxx.xxxx.xx00 lr bn tr

Enables the use of SDLLC on a serial interface.

xxxx.xxxx.xx00--MAC address to be assigned to the serial interface.
lr--The SDLLC virtual ring number.
bn--The SDLLC bridge number.
tr--The SDLLC target ring number.

Example

sdllc traddr 0220.3333.4400 9 1 100

[no] sdllc xid address xxxxxxxx

Specifies an XID value to be associated with the SDLC station.

address xxxxxxxx--Station address. This value is used to reply to XIDs received on the Token Ring (LLC2) side of the connection. The default is not to support XIDs. The XID must be four bytes (eight digits) in length and is specified with hexadecimal digits.

STUN Global Configuration Commands

[no] stun peer-name IP-address

Enables or disables STUN.

IP-address--IP address by which this STUN peer is known to other STUN peers that are using the TCP transport.

Example

stun peer-name 131.108.254.6

[no] stun poll-interval milliseconds

Changes the interval between each sequence of proxy polls generated on the secondary side of the connection. The no form restores the default, which is 20 milliseconds or 1/50th of a second.

milliseconds--Number of milliseconds in the interval. The minimum value is 20.

Example

stun poll-interval 100

[no] stun primary-pass-through seconds

Changes the interval between each pass-through of polls exchanged by the primary and secondary SDLC devices. The no form restores the default of 20 seconds.

seconds--Number of seconds in the interval.

Example

stun primary-pass-through 20

[no] stun protocol-group group-number [protocol] [sdlc-tg]

Associates or removes group numbers with protocol names. With SDLC tag, accommodates a multilink SDLC Transmission Groups (TG) across STUN connections between IBM communications controllers.

group-number--Number from 1 to 255.
protocol--A predefined protocol (basic or sdlc) or a protocol that you define.
sdlc-tg--Identifies the group as part of a Transmission Group.

Example

stun protocol-group 3 sdlc-tg

[no] stun schema name offset constant-offset length address-length
format format-keyword

Specifies a format, or schema, for a user-defined protocol. The no form removes the schema.

name--Name of the protocol.
constant-offset--Constant offset in bytes for the address to be found in the frame.
address-length--Length of that offset.
format-keyword--Format to be used to specify and display addresses for routes on interfaces that use this STUN protocol. The allowable formats and their maximum lengths are listed in the following table.

Formats	Base	Length
Decimal	Base 10 addresses (0-9)	4
Hexadecimal	Base 16 addresses (0-F)	8
Octal	Base 8 addresses (0-7)	4

Example

stun schema new-sdlc offset 0 length 1 format octal

STUN Interface Subcommands

[no] stun group group-number

Places a STUN-enabled interface in a defined group.

group-number--Any number from 1 to 255.

Example

stun group 20

[no] stun proxy-poll address address modulus modulus
{primary|secondary}
[no] stun proxy-poll address address discovery

Enables or disables proxy polling. Default is disabled.

address--Address of the device on which to enable proxy polling.
modulus--Modulus of the link as defined by the MODULUS parameter specified in the line descriptions on the SDLC host.
primary or secondary--Indicates whether the SDLC device is primary or secondary.
discovery--Use this keyword if you do not specify primary and secondary ends and connections are negotiated.

Examples

stun proxy-poll address C1 modulus 8 secondary
stun proxy-poll address C1 discovery

[no] stun route all tcp IP-address
[no] stun route all interface serial interface-number
[no] stun route all interface serial interface-number direct
[no] stun route address address-number tcp ip-address [local-ack]
[priority]
[no] stun route address address-number interface serial interface-number
[no] stun route address address-number interface serial interface-number
direct

Enables or disables forwarding of frames on the interface.

all--Specifies that all STUN traffic received on the input interface will be propagated regardless of the address contained in the SDLC frame.
tcp--Causes the TCP transport mechanism to be used to propagate frames that match the entry.
IP-address--Address that identifies the remote STUN peer that is connected to the far SDLC link.
interface serial--Indicates that the Serial Transport method of the STUN function will be used to propagate the SDLC frame.
interface-number--Serial line number connected to the router.
address--Specifies how an SDLC frame that contains a particular address is to be propagated.
address-number--Address in the SDLC frame expressed as an octal, decimal, or hexadecimal address in the range allowed by the protocol.
local-ack--Sets up SDLC Local Acknowledgment for a serial tunnel.
direct--Indicates that the specified interface is a direct STUN link, not a serial connection to another peer.
priority--Enables priority queuing.

Examples

stun route address 7 interface serial 1
stun route address 10 tcp 131.108.8.1
stun route all tcp 131.108.10.1
stun route address C1 tcp 131.108.1.1

STUN Show Commands

Command	Description
show stun	Current status of STUN.
show stun sdlc	Proxy state of interfaces on an address-by-address basis.

Table of Contents