[c-nsp] SUP2T Ignoring ARP response... 12.2(50)SY3
Peter Kranz
pkranz at unwiredltd.com
Thu Apr 4 12:49:15 EDT 2013
A bit stumped by this one, perhaps someone has seen this behavior:
A particular MAC address is seen in two different VLANS: (Should be ok, MAC
address table is by VLAN right)
rtr-sungard#sho mac address-table | inc 0025.90a6.7ca2
10 0025.90a6.7ca2 dynamic Yes 5 Te5/5
* 11 0025.90a6.7ca2 dynamic Yes 60 Te6/5
ARP table shows Incomplete ARP response for one of the VLANs:
Internet x.x.x.x 0 Incomplete ARPA
Internet x.x.x.x 1 0025.90a6.7ca2 ARPA Vlan10
Cannot ping the host in Vlan11 as a result..
However packet captures from the host show the ARP response being sent as
desired on the Incomplete VLAN..
If the host Vlan11 pings the gateway on the 6500, ARP table is now populated
and pings possible..
Internet x.x.x.x 0 0025.90a6.7ca2 ARPA Vlan11
Internet x.x.x.x 8 0025.90a6.7ca2 ARPA Vlan10
Any ideas?
Peter Kranz
Unwired Ltd
www.UnwiredLtd.com
pkranz at unwiredltd.com
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