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From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
To: netfilter@lists.netfilter.org
Subject: Re: Bridge Transparent Proxy
Date: Tue, 22 May 2007 18:06:12 +0200	[thread overview]
Message-ID: <465314F4.1060007@plouf.fr.eu.org> (raw)
In-Reply-To: <C2785BE6.1C244%robert@leblancnet.us>

Hello,

Robert LeBlanc a écrit :
> You will need to look at ebtables. Bridging will bypass iptables.

Bridged IPv4 packets traverse the iptables chains if the kernel was 
compiled with Netfilter bridge support (CONFIG_BRIDGE_NETFILTER=y). It 
allows finer filtering than ebtables, for instance accepting only 
outgoing HTTP/HTTPS connections and related ICMP messages in both 
directions thanks to connection tracking, e.g. :

iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -m physdev --physdev-in eth1 -m state --state NEW \
   -p tcp -m multiport --dports 80,443 -j ACCEPT


  reply	other threads:[~2007-05-22 16:06 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-22 14:28 Bridge Transparent Proxy Jon Tim
2007-05-22 14:35 ` Robert LeBlanc
2007-05-22 16:06   ` Pascal Hambourg [this message]
2007-05-23  5:56     ` Jon Tim
2007-05-23 13:39       ` Gáspár Lajos
2007-05-22 16:09   ` Grant Taylor
2007-05-22 17:07     ` Robert LeBlanc
2007-05-22 18:30       ` Grant Taylor
2007-05-22 18:36         ` Pascal Hambourg
2007-05-22 18:51           ` Grant Taylor
2007-05-22 19:26             ` NAT addresses - RFC or tradition? Paul Blondé
2007-05-22 19:46               ` Andre Guimarães
2007-05-22 19:57                 ` Tim Evans
2007-05-22 20:02                   ` Marius-Iulian Corici
2007-06-18 17:27                   ` R. DuFresne
2007-06-18 17:25                 ` R. DuFresne
2007-05-22 20:02               ` Leonardo Rodrigues Magalhães
2007-05-22 20:22               ` Grant Taylor
2007-05-22 21:39             ` Bridge Transparent Proxy Petr Pisar
2007-05-22 22:07             ` Pascal Hambourg
2007-05-23  0:25               ` Grant Taylor
2007-05-22 18:39         ` Robert LeBlanc
  -- strict thread matches above, loose matches on Subject: below --
2004-08-24 12:28 bridge + transparent proxy Jason Opperisano
2004-08-24 13:13 ` ArioS
2004-08-24  5:11 Multiple IPSEC VPNs through a firewall based on 2.4.2X kernel Roksana Boreli
2004-08-24  5:46 ` Ming-Ching Tiew
2004-08-24  7:32   ` Payal Rathod
2004-08-24  7:50     ` Ming-Ching Tiew
2004-08-24  8:53       ` bridge + transparent proxy ArioS

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