Yves Bélanger wrote:
>  
>   http://www.shorewall.net/NewBridge.html
>  


It's a consequence of the way that IP over LANs interacts with the bridge.


ROUTER<-------->BRIDGE/FW<----->(hosts in 10.0.0.0/8 and in 192.168.1.0/24)

When a host in 10.0.0.0/8 sends a request to a host in 192.168.1.0/24, both
the request and the reply traverse the bridge twice, once in one direction
and once in the other. This might actually work using the new bridging
technique -- it can't possibly work using physdev (or at least firewalling
becomes impossible using physdev).

-Tom
-- 
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ [EMAIL PROTECTED]
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