https://www.employees.org/~jdal/tags/troubleshooting/ Recent content in Troubleshooting on Jean-François Dal Hugo -- gohugo.io en © 2026 Jean-François Dal Fri, 19 Jun 2026 00:00:00 +0000 https://www.employees.org/~jdal/tech/ise/multi-nic-routing/ Fri, 19 Jun 2026 00:00:00 +0000 https://www.employees.org/~jdal/tech/ise/multi-nic-routing/ How ISE handles routing when multiple network interfaces are configured. Policy Based Routing, return traffic behaviour, and the interesting exceptions. https://www.employees.org/~jdal/tech/ise/double-frag/ Mon, 01 Jun 2026 00:00:00 +0000 https://www.employees.org/~jdal/tech/ise/double-frag/ Double fragmentation is a real thing, whatever that TAC engineer said. Here is how it works, how it can be weaponised, and how it silently breaks EAP-TLS authentication.