network brain bender

Andrew McNabb amcnabb at
Fri Nov 7 13:22:21 MST 2008

On Fri, Nov 07, 2008 at 11:07:12AM -0700, Hans Fugal wrote:
> Wouldn't that ruin the separation between the networks?
> Stuart, this way lies madness me thinks. Do I get geek points for
> pointing that out?

Yep.  Of course, madness kind of seemed like what Stuart was looking

> Why not just do the rational thing and use two similar but different
> subnets, like and Are you hardcoding IP
> addresses in whatever it is you're testing?

Building on your idea, you could have both networks think that they're, but have the server call one of them and the
other  Then you could set iptables rules to mangle all
incoming traffic on eth1 to be and mangle outcoming traffic
on eth1 to be

Andrew McNabb
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