Messages in this thread | | | Date | Thu, 17 Nov 2005 03:01:46 +0000 | From | Jon Masters <> | Subject | ipt_ROUTE loopback |
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Folks,
I'm trying to find an easy way to have a Linux box completely ignore the local routing table and have traffic destined for one interface go out of a loopback cable and back into the other rather than traversing the local routing within the host, viz:
eth0 x.x.x.x | | <--- loopback cable | eth1 y.y.y.y
This is completely against normal practice, but useful for test. I've so far tried playing around with iproute2 and have this evening built up ipt_ROUTE, which seems more promising. I can get traffic forced out of the "correct" interface and bypass the local routing table, but it always has the destination MAC of the first interface when it reaches the second.
So, I can bodge the destination MAC (I'm still deciding how to do that - maybe I'll take apart ipt_ROUTE and have it do MAC rewriting too) but I'm curious as to whether there's a "right" way to do this that I've so far missed? I've considered using the briding code in some weird kind of transparent-yet-not-really bridge setup, but I don't really want to do that.
Any suggestions? This seems like something others must have also wanted to do. I'm happy to break things in doing it, but I'm hopeful for a "you missed this page...".
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