Hey everyone! I came across this link today: http://www.sjdjweis.com/linux/proxyarp/ Which I thought was very interesting. But I don't quite understand how, or what effect assigning the same IP address to both the left and right side interfaces of the pseudo-bridge has. In the article, the author describes a mechanism for being able to shape/filter traffic to an entire ISP assigned subnet. Basically, use proxy arp, assign the same ISP IP to both interfaces on the router, and use iproute2 to create routes to the router on one interface, and the rest of the network on the other. It's almost identical to the Proxy-Arp/Pseudo Bridge part of the LARTC HOWTO. Except that I'm confused as to how the kernel deals with the fact that both interfaces have the same IP address. I guess logically it doesn't matter to the kernel, because the routes clearly delineate which interface to send packets to, proxy-arp connects the two LANs, and both interfaces have different MAC addresses. It just seems wrong. :) -- Adrian Chung (adrian at enfusion-group dot com) http://www.enfusion-group.com/~adrian GPG Fingerprint: C620 C8EA 86BA 79CC 384C E7BE A10C 353B 919D 1A17 [toad.enfusion-group.com] up 1:44, 1 user, load average: 0.00
