Mental Note: Tracking L3 Glean Attacks

Here’s a handy debug command for tracking L3 Glean attacks on IOS based Cisco routers / L3 switches.

From there, you can take the output, paste the contents into a file, then use some Linux foo to determine the attacker.

Supporting documentation: Built-in CPU Sniffer

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November 28, 2014

Posted In: cisco, IOS, L3 glean, Layer 3 Switching, network security, Routing Protocols