Cisco and ARP troubles

[jay]

On Thu, 12 Apr 2001, Warren Togami wrote:

> We tried swapping a Linux machine in 2 weeks ago, but it failed probably for
> the same reason.  This time I changed the MAC address on the ethernet card
> before attempting to replace the PIX on that switch port... so theoretically
> it shouldn't have been able to tell a difference between the two machines.
> When I plugged the PIX back in, it began to route again just fine after a
> swift kick to the T1 side...

okay, i asked some network geeks i know and this was their response:

> Easy.
>
> Clear the arp cache on the routers/switches that flank the firewall.
>
> Common problem, easy fix.

that seems to be too obvious (you tried that already, right?), so
i'd say the next thing is to sniff the traffic 'tween the switch
and pix.

=jay