Re: interface or source ip match using brouting - transparent proxy

Bart De Schuymer <[email protected]> Wed, 26 Apr 2006 21:09:41 +0200
Newsgroups gmane.linux.network.bridge.ebtables.user
Message-ID <[email protected]>
Op di, 25-04-2006 te 21:41 +0300, schreef Andrius Kazimieras
Kasparavičius:
> * Bart De Schuymer <[email protected]> [2006-04-25 21:34]:
> 
> > > I start from empty tables. I trid loging trafic and it logs correctly,
> > > but works incorrectly. I mean: I use the same broute rule:
> > > 
> > > Bridge chain: BROUTING, entries: 1, policy: ACCEPT
> > > -p IPv4 -i eth0 --ip-src 10.0.0.0/8 --ip-proto tcp --ip-dport 80
> > > --log-level debug --log-prefix "EBFW" --log-ip --log-arp -j redirect
> > > 
> > > eth0 now is internal card, and it logs and works ash should be, but
> > > when I change the rule from eth0 to eth1, it does not log anymore, but
> > > it still redirects traffic locally, but it shouldn't?!?
> > 
> > Log the packets as it enters the bridge and then see what kind of
> > alterations have been done to them. My guess is that the packets already
> > have the bridge's MAC address as destination.
> 
> no, they do not.
> 
> ok, what I noticed more is that, when ebtables logs, and all works as
> expected in ebtables, accepts redirects(intercepts) web port traffic,
> but iptables has no entries. Web traffic does not pass 
> through the bridge. But if they are on wrong interface - the trafic
> will transparently flow through the bridge, but if iptables redirect
> rule in prerouting would appear - it would catch web trafic and 
> redirect ignoring ebtables interface redirection settings.

Sorry, I don't have time to analyse your sentences to find out what you
are saying. If you want an answer, then take the time to write down your
an understandable description.




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