[c-nsp] C2950G sh arp

nealr neal at lists.rauhauser.net
Wed Jun 7 19:00:48 EDT 2006



  Could be you've got a little proxy arp going? Try a 'no ip proxy-arp' 
on that 3750's interface, then go looking for hosts that loose access to 
the net :-)


Shaun wrote:
> When doing a sh arp on my c2950G switches I see a huge list of addresses 
> that do not belong to my network, they appear to all be on the vlan number I 
> choose to be my management vlan (not 1).  When I do a sh mac-add | inc 
> <MAC-ADDRESS> I see that the mac points to fa0/1.  My setup is simple, 3750 
> trunked to the 2950G's.  3750 does BGP with my upstreams.
>
> Is this normal, when I do a sh arp on my 3750 I only see addresses from the 
> networks i own, it's only the switches that servers directly plug into that 
> seam to have this issue.  Also if I do a sh arp | exc Vlan(Management 
> Number) the arp table shows nothing on the 2950's.
>
> ~Shaun 
>
>
>
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