John Oliver wrote:
Any ideas on how to track this down? Maybe a way to figure out which physical port on the switch (Cisco 2970) is responsible?
You could always do a 'sh arp' from an enable prompt. That'll at least give you the dot1q interface (VlanN) which has that MAC local in its table.
Also, 'sh mac-address-table' from an enable prompt will narrow it down to a particular port -- on an active switch this may be very long output. 'sh mac-address-table vlan 10' for instance, only shows MACs associated with that vlan. It'd be good to narrow it down with what you discovered from the 'sh arp' command ;)
Good luck, and let me know if you need any more help. -Kelsey -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
