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 b.stanford.edu dev lo" will work. Vikram wrote: >Hi, > >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 a.stanford.edu and >b.stanford.edu on the same subnet. b.stanford.edu is no longer there, and >a.stanford.edu is set to proxy arp for it....so that it can get its >packets [for a specific reason which is not so relevant here,hopefully]. > >i set the proxy arp entry in a.stanford.edu as follows: > >arp -Ds b.stanford.edu eth0 pub > >and then ping b.stanford.edu from some host outside. a tcpdump shows the >gateway router doing an arp who-has b.stanford.edu but there is no arp >reply at all from a.stanford.edu ?? > >can anyone tell me what i have missed ? > > > Vikram > >- >: send the line "unsubscribe linux-net" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Casey Carter Casey@Carter.net ccarter@uiuc.edu AIM: cartec69 - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
