I am interested in creating a pathological lab network with the
following forwarding rules:
- three networks (A,B,C)
- packets from A or C are forwarded to B
- packets from B are forward to both A and C
I was thinking of using BRIDGE+ipfw to create this by hacking
bridge.c so that all dsts are UNKNOWN, then filtering via ipfw by
deny ip from A to C
deny ip from C to A
Seems like this would work, but I was wondering what others' thoughts
might be on this approach. Perhaps BRIDGE could have a (compile-time?)
non-learning flag so that all packets get forwarded as if they are
UNKNOWN.
Oh, btw, I also want tcpdump to work on any of these interfaces. ;-)
Thanks.
Clark
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Clark K. Gaylord
Blacksburg, Virginia USA
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