Re: proxy arp issues

From: Casey Carter (
Date: Thu Mar 21 2002 - 14:42:00 EST

Linux will not proxy arp for an address on interface X if the route for
that address points back to interface X (That's what you call a routing
loop). Do have have a host-specific route for the address that points
somewhere else? If you want to use iptables REDIRECT target to capture
the traffic, then I think a simple "route add -host dev
lo" will work.

Vikram wrote:

>I am having trouble using proxy arp with RH7.2 [linux 2.4.7-10 stock
>kernel which comes with it]
>Proxy arp doesnt seem to work. I have hosts and
> on the same subnet. is no longer there, and
> is set to proxy arp for that it can get its
>packets [for a specific reason which is not so relevant here,hopefully].
>i set the proxy arp entry in as follows:
>arp -Ds eth0 pub
>and then ping from some host outside. a tcpdump shows the
>gateway router doing an arp who-has but there is no arp
>reply at all from ??
>can anyone tell me what i have missed ?
> Vikram
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Casey Carter
AIM: cartec69

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