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Configuring Cisco 700 Series Routers to operate with Routers Running Cisco IOS Software

Configuring Cisco 700 Series Routers to operate with Routers Running Cisco IOS Software

This appendix contains configuration examples for connecting a Cisco 700 series router to a router running Cisco IOS software. In these examples, the remote router is a Cisco 765 series router, and the central site router is a Cisco 4500 series router. Any Cisco 700 series router can be used in place of the remote Cisco 765 series router. Any router running Cisco IOS software can replace the central site Cisco 4500 series router.

In these examples, the Cisco 4500 series router serial interface configuration is an ISDN Primary Rate Interface (PRI) interface. Depending on the router model used at the central site, the serial interface may be a different type.

In addition, this appendix lists several interoperability issues that exist between Cisco IOS software and Cisco 700 series routers. These issues must be considered if you are connecting your Cisco 700 series router to a router running Cisco IOS software.

This appendix contains the following sections:

IP Static Routing and Callback with CHAP Authentication

This section describes how to configure the routers for Internet Protocol (IP) static routing and callback with Challenge Handshake Authentication Protocol (CHAP).

Figure A-1 illustrates the configuration used in this example.


Figure A-1: IP Static Routing and Callback with CHAP Authentication

Remote Cisco 765 Command Summary

Following is the command summary for configuring the remote Cisco 765 series router for IP static routing and callback with CHAP authentication:

set switch 5ess
set system 765
set ppp authentication incoming chap
set ppp secret <765>
set multidestination on
cd lan
set ip address 192.168.147.9 
set ip netmask 255.255.255.248 
set ip routing on
set ip rip update periodic
cd
set user 4500
set ppp secret client <765>
set ppp secret host <4500>
set ip address 172.16.125.7 
set ip netmask 255.255.255.0
set ip routing on
set ip framing none
set ppp callback request always
set ip route destination 0.0.0.0 ga 172.16.125.1 propagate on
set number 5558011 
set bridging off
set ip rip update off
set timeout 360
set active
reboot

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary for configuring a central site Cisco 4500 series router for IP static routing and callback with CHAP authentication:

For detailed information regarding the commands listed here, refer to the documentation provided with the Cisco 4500 series router.

IP Static Routing with CHAP Authentication and MLP

This section describes how to configure the central site Cisco 4500 series router and the remote Cisco 765 series router for IP static routing with Challenge Handshake Authentication Protocol (CHAP) and Multilink Protocol (MLP).

Figure A-2 is an illustration of the configuration used in this example.


Figure A-2: IP Static Routing with CHAP Authentication and MLP

Remote Cisco 765 Command Summary

Following is the command summary to configure the remote Cisco 765 series router for IP static routing with CHAP and MLP:

set switch 5ess
set system 765
set multidestination on
set ppp multilink on
set ppp authentication incoming chap
set ppp authentication outgoing chap
cd lan
set ip address 192.168.147.9 
set ip netmask 255.255.255.248 
set ip routing on
set ip rip update periodic
cd
set user 4500
set ppp clientname <765>
set ppp secret client <765>
set ip address 172.16.125.7 
set ip netmask 255.255.255.0
set ip routing on
set ip framing none
set ip route destination 0.0.0.0 ga 172.16.125.1 propagate on
set number 5558011 
set bridging off
set ip rip update off
set ppp secret host <4500>
set timeout 360
demand 2 threshold 32 duration 5
set active
reboot


Note The set ppp authentication outgoing chap command in this example is not recommend when connecting to Ascend 4000 or NAS routers.

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary for configuring the central site Cisco 4500 series router for IP static routing with CHAP and MLP:

configure terminal
hostname 4500
enable password lab
username 4500 password 4500
username 765 password 765
isdn switch-type primary-5ess
controller T1 0
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Ethernet0
ip address 172.18.124.2 255.255.255.0
no shutdown
interface Serial0:23
description This is pri-5ess 555-3693
ip address 172.16.125.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 360
dialer wait-for-carrier-time 60
dialer map ip 172.16.125.7 name 765 5553693
dialer-group 1
ppp authentication chap
ppp multilink
dialer load 125
no shutdown
router eigrp 100
redistribute static
network 172.18.124.0
ip host c765 172.16.125.7
ip host c7000 172.18.124.1
ip route 192.168.147.8 255.255.255.248 172.16.125.7
dialer-list 1 protocol ip permit
line vty 0 4
password telnet
login
end

For detailed information regarding the commands listed here, refer to the Cisco 4500 series router publications.

IP Static Routing with PAP Authentication and MLP

This section describes how to configure the central site Cisco 4500 series router and the remote Cisco 765 series router for Internet Protocol (IP) static routing with Password Authentication Protocol (PAP) authentication.

Figure A-3 is an illustration of the configuration used in this example.


Figure A-3: IP Static Routing with PAP Authentication

Remote Cisco 765 Command Summary

Following is the command summary to configure the remote Cisco 765 series router for IP static routing with PAP authentication:

set switch 5ess
set system 765
set multidestination on
set ppp multi on
set ppp authentication in pap
set ppp authentication out pap
cd lan
set ip address 192.168.147.9 
set ip netmask 255.255.255.248 
set ip routing on
set ip rip update periodic
cd
set user 4500
set ip address 172.16.125.7 
set ip netmask 255.255.255.0
set ip routing on
set ip framing none
set ppp clientname 765
set ppp password client <765>
set ppp password host <765>
set ip route destination 0.0.0.0 ga 172.16.125.1 propagate on
set number 5558011
set bridging off
set timeout 360
set active
reboot

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary for configuring the central site Cisco 4500 series router for IP static routing with PAP authentication:

configure terminal
hostname 4500
enable password lab
username 4500 password 4500 
username 765 password 765
isdn switch-type primary-5ess
controller T1 0 
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Ethernet0
ip address 172.18.124.2 255.255.255.0
no shutdown
interface Serial0:23
description This is pri-5ess 555-3693
ip address 172.16.125.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 360
dialer wait-for-carrier-time 60
dialer map ip 172.16.125.7 name 765 5553693
dialer-group 1
ppp authentication pap
no shutdown
router eigrp 100
redistribute static
network 172.18.124.0
ip host c765 172.16.125.7
ip route 192.168.147.8 255.255.255.248 172.16.125.7
dialer-list 1 protocol ip permit
line vty 0 4
password telnet
login
end

For detailed information regarding the commands listed here, refer to the Cisco 4500 series router publications.

IP Unnumbered Static Routing and CHAP with MLP

This section describes how to configure the central site Cisco 4500 series router and the remote Cisco 765 series router for Internet Protocol (IP) unnumbered routing with Challenge Handshake Authentication Protocol (CHAP) authentication and Multilink Protocol (MLP).

Figure A-4 is an illustration of the configuration used in this example.


Figure A-4: IP Unnumbered Routing and CHAP Authentication with MLP

Remote Cisco 765 Command Summary

Following is the command summary for configuring the remote Cisco 765 series router for IP unnumbered routing with CHAP authentication and MLP:

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary for configuring the central site Cisco 4500 series router for IP unnumbered routing with CHAP authentication and MLP:

configure terminal
hostname 4500
enable password lab
username 4500 password 4500
username 765 password 765
isdn switch-type primary-5ess
controller T1 0
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Ethernet0
ip address 172.18.124.2 255.255.255.0
no shutdown
interface Serial0:23
description This is pri-5ess 555-3693
ip unnumbered ethernet0 
encapsulation ppp
dialer idle-timeout 360
dialer wait-for-carrier-time 60
dialer map ip 192.168.147.9 name 765 5553693
dialer-group 1
ppp authentication chap
ppp multilink
dialer load 125
no shutdown
router eigrp 100
redistribute static
network 172.18.124.0
ip host c765 192.168.147.9
ip route 192.168.147.8 255.255.255.248 192.168.147.9
ip route 192.168.147.9 255.255.255.255 s0:23
dialer-list 1 protocol ip permit
line vty 0 4
password telnet
login
end

For detailed information regarding the commands listed here, refer to the Cisco 4500 series router publications.

IP Static and IPX Static Routing with CHAP and MLP

This section describes how to configure the central site Cisco 4500 series router and Cisco 765 series router for Internet Protocol (IP) static and Internetwork Packet Exchange (IPX) static routing with Point-to-Point Protocol (PPP) using CHAP and MLP.

Figure A-5 is an illustration of the configuration used in this example.


Figure A-5: IP Static and IPX Static Routing with PPP

Remote Cisco 765 Command Summary

Following is the command summary to configure the remote Cisco 765 series router for IP static and IPX static routing with PPP using CHAP and MLP:

set switch 5ess
set system 765
set multidestination on
set ppp authentication incoming chap
set ppp authentication outgoing chap
cd lan
set ipx network 1478
set ipx framing 802.2
set ipx routing on
set ipx rip update periodic
set ip address 192.168.147.9
set ip netmask 255.255.255.248
set ip routing on
set ip rip update periodic
cd
set user 4500
set ipx network 32125
set ipx routing on
set ipx route destination 3039e670 gateway 32125:0c08af65
set ipx service name CORP_FS1 type 4 address 3039e670:01:0451
set ipx spoof 10
set ipx rip update off
set ipx framing none
set ip address 172.16.125.7
set ip netmask 255.255.255.0
set ip routing on
set ip framing none
set encapsulation ppp
set ip route destination 0.0.0.0 ga 172.16.125.1 propagate on
set number 5558011
set bridging off
set ip rip update off
set timeout 360
set ppp secret host <4500>
set ppp secret client <765>
set ppp clientname 765
set active
reboot

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary to configure the central site Cisco 4500 series router for IP static and IPX static routing with PPP:

configure terminal
hostname 4500
enable password lab
username 4500 password 4500
username 765 password 765
ipx routing
isdn switch-type primary-5ess
controller T1 0
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Ethernet0
ip address 172.18.124.2 255.255.255.0
ipx network 48124 encapsulation sap
no mop enabled
no shutdown
interface Serial0:23
description This is pri-5ess 555-3693
ipx network 32125
ip address 172.16.125.1 255.255.255.0
no ipx route-cache
ipx watchdog-spoof 
encapsulation ppp
ppp multilink
ppp authentication chap
dialer idle-timeout 360
dialer wait-for-carrier-time 60
dialer map ipx 32125.0040.f902.cf5d name 765 5553693
dialer map ip 172.16.125.7 name 765 5553693
dialer-group 1
no shutdown
ipx route 1478 32125.0040.f902.cf5d
ipx router rip
no network 32125
redistribute static
router eigrp 100
redistribute static
network 172.18.124.0
ip host c765 172.16.125.7
ip route 192.168.147.8 255.255.255.248 172.16.125.7
dialer-list 1 protocol ipx permit
dialer-list 1 protocol ip permit
end

For detailed information regarding the commands listed here, refer to the Cisco 4500 series router publications.

IPX Static Routing with CHAP and MLP

This section describes how to configure the remote Cisco 765 series router and the central site Cisco 4500 series router for Internetwork Packet Exchange (IPX) static routing with Point-to-Point Protocol (PPP).

Figure A-6 is an illustration of the configuration used in this example.


Figure A-6: IPX Static Routing with PPP



Remote Cisco 765 Command Summary

Following is the command summary for configuring the remote Cisco 765 series router for IPX static routing with PPP:

set switch 5ess
set system 765
set multidestination on
set multilink on
cd lan
set ipx network 1478
set ipx framing 802.2
set ipx routing on
set ipx rip update periodic
cd
set user 4500
set ppp clientname 765
set ppp secret client <765>
set ipx network 32125
set ipx routing on
set ipx route destination 3039e670 gateway 32125:0c08af65
set ipx service name CORP_FS1 type 4 address 3039e670:01:0451
set ipx spoofing 10
set ipx rip update off
set ipx framing none
set encapsulation ppp
set number 5558011
set bridging off
set timeout 360
set active
reboot

For detailed information regarding the commands listed here, refer to the related chapter in this publication.

Central Site Cisco 4500 Command Summary

Following is the command summary for configuring the central site Cisco 4500 series router for IPX static routing with PPP:

configure terminal
hostname 4500
enable password lab
username 765 
no ip routing
ipx routing
isdn switch-type primary-5ess
controller T1 0
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Ethernet0
ipx network 23160 encapsulation sap
no mop enabled
no shutdown
interface Serial0:23
description This is pri-5ess 555-3693
no ipx route-cache
ipx watchdog-spoof 
encapsulation ppp
ppp multilink
dialer idle-timeout 360
dialer wait-for-carrier-time 60
dialer map ipx 32125.0040.f902.cf5d name 765 5553693
dialer-group 1
ipx network 32125
no shutdown
ipx route 1478 32125.0040.f902.cf5d
ipx router rip
no network 32125
redistribute static
dialer-list 1 protocol ipx permit
end

For detailed information regarding the commands listed here, refer to the Cisco 4500 series router publications.

Multilink PPP Encapsulation

Cisco 700 series routers implement multilink PPP, which is available in Release 11.0(3) or later of the Cisco IOS. You can disable multilink PPP in the following two environments:

Use the set ppp multilink command at the system level to disable multilink PPP, as follows:

766> set ppp multilink off

Dynamic Routing Protocols

Cisco 700 series routers implement RIP Versions 1 and 2 and demand RIP. These two proposed standards are not implemented in Cisco IOS software. If you are connecting your router to a router running Cisco IOS software, and you want to use dynamic routing protocol, you must configure Cisco 700 series routers for RIP Version 1 and disable demand RIP.

Use the set ip rip command as follows to set the dynamic routing to use RIP Version 1:

766> set ip rip version 1

Use the set ip rip update command as follows to disable demand RIP:

766> set ip rip update periodic

Note Setting IP RIP update to periodic maintains the connection indefinitely. This might be a concern if it is not necessary to maintain the line 24 hours a day, 7 days a week; you are paying for connection time you are not using.

Bridging to a Router Running Cisco IOS Software

It is possible to bridge data over ISDN to and from Cisco ISDN routers. Depending on your network environment, this might be an ideal solution. Bridging offers configuration simplicity with few concerns regarding network address space limitations and unroutable protocols. Bridging also offers compatibility with other products that need to bridge.

When bridging, you do not have the same ISDN line control that routing access lists provide. When bridging protocols such as Novell IPX, AppleTalk, or NetBIOS, it is possible for the ISDN line to remain connected for long periods of time. This can result in high ISDN usage charges. If bridging is the only solution for your environment, we recommend monitoring the ISDN line connection.

Cisco IOS Release 11.1 and earlier limit the number of simultaneous ISDN bridge sessions to one per interface.

Prior to Cisco IOS Release 11.2 (half-bridging), the Cisco IOS must also be configured to the bridging protocol, not the router protocol.

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