Re: transparent proxy and iptables failing

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2009/10/7 Robin Wood <robin@xxxxxxxxxxxxx>:
> Hi
> I'm trying to setup a transparent proxy so I've got a linux device
> with two NICs which are bridged using brctl. Traffic flows happily
> across the bridge so I know it is working fine.
>
> Now when I try to setup the iptables rules they are being ignored. The
> rule I want to use is:
>
> iptables -t nat -A PREROUTING -i br-lan -p tcp --dport 80 -j REDIRECT
> --to-port 3128
>
> but nothing gets redirected. I've also tried changing 3128 to a port
> that is closed to see what would happen, nothing, the packets kept
> flowing.

Various people have suggested using ebtables rather than iptables
because I want to act on traffic over the bridge rather than between
interfaces. If this is correct, how would I rewrite the above rule in
ebtables speak?

Robin
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