On Tue, 10 Dec 2002, Roberto Nibali wrote: > > I have in mid multiple ISPs for redundancy, perhaps a pair of OC12s or > > similar. Sites would be reachable from either, but fewer hops to one or > > the other. When the client connects, it avoids asymmetric routing to reply > > on the same router. > > I understand everything but the last sentence. You have a couple of > redundant ISP links which can all act as a router to the Internet, the > only difference is that if you go over some of them you need less hops. > Now in order to avoid asymmetric routing you need the hidden patch? I > apologise for being so narrow minded but I still don't get it. Don't. You are right about this one, a client originated connection will have an ARP entry and route back by the original route. Connections originated on the dual-homed system might put a packet out on either NIC, from any IP, that's a different issue, and the whole hidden interface patch really doesn't address it. I was mixing things from two problems I've seen, sorry for any confusion. -- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979. - : 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
