[c-nsp] C2950G sh arp

[Gert Doering]

Hi,

On Wed, Jun 07, 2006 at 05:52:20PM -0700, Shaun wrote:
> The 3750 doesnt show these other addresses though, only the 2950's do.  Also 
> why would this only be on the management vlan and not on the other vlans. 
> The management vlan is only assigned to each switch giving it it's ip, it's 
> not assigned to any connected servers.

If you see MAC addresses from "other networks" on your management LAN,
chances are that you have an interconnection somewhere - a crossover-cable
plugged into "server LAN" and "management LAN", or something similar.

Run a sniffer on the management VLAN (PC with ethereal or tcpdump) and 
look for ARP packets that don't belong there...

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de