Troubleshooting Cisco AnyConnect for Mac 4.4.4

When it comes to setting up MPLS routing between Extreme Networks x460g2 and various Cisco devices (3600, ASR920, 7600, 9000), things can get complicated quickly. In this article, we'll explore the challenges I faced when trying to enable VPN/MPLS working on these devices.

I started by experimenting with different settings for iBGP route priority, but the results were inconsistent and didn't quite meet my expectations. The main issue seemed to be related to the routing part of the configuration.

One key finding was that LDP protocol works well between the two vendors, which is a good starting point. However, when I enabled MPLS, things started to go awry. OSPF and iBGP worked fine as long as MPLS was disabled, but as soon as it was enabled, issues arose.

To troubleshoot the issue, I created two VPN-VRFs on each switch/router, with one loopback interface/vlan for each. This allowed me to isolate the problem and focus on the routing configuration.

From my perspective, the main suspect is something in the routing part of the configuration. Specifically, I'm still unsure where to set the priority of the MPLS route. I've tried setting it before iBGP or after iBGP, but the results are similar.

If you're facing a similar issue with Cisco AnyConnect for Mac 4.4.4 and Extreme Networks x460g2 devices,

Cisco anyconnect for mac 4.4.4