[Xorp-users] ARP problems with static routes in XORP

Mark Handley M.Handley at cs.ucl.ac.uk
Wed Jun 7 13:04:58 PDT 2006


On 6/7/06, Vikram KAUL <vkaul at research.telcordia.com> wrote:
> I ran tcpdump on the 17.17.17.1 interface on Router1 and it is getting arp
> queries
> arp who-is 10.1.1.2 tell 17.17.17.20
>
> Why is this happening ?

The host should not be arping for an address that is not on the local
subnet.  My guess is that the host 17.17.17.20 thinks that 10.1.1.2 is
in fact on its local subnet.  The obvious cause for this would be that
the netmask on the host is set incorrectly.

Of course it could be something else, but this is the simplest
explanation that fits the symptoms.

 - Mark



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