Saturday, April 12, 2014

Cisco WCCP. It's a son of a bitch.

This might seem like a post from 10 years ago, and I'm embarrassed to admit that I'm still working with tech that uses WCCP.

To cut a long story short, I was bitten hard this week by Cisco WCCP not redirecting traffic the way it's supposed to.

In a nutshell, three interfaces were configured on a router, one the internal interface connecting to an enterprise core switch, the other two going to two separate service provider WAN clouds.

A couple of weeks ago we were forced to upgrade to code on our Cisco ASR router to address a bug in the Cisco IOS code that was causing catastrophic outages on our SIP trunk service to our VoIP service provider.

The code upgrade fixed the issue, but upon reboot of the router...

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