From: Pascal Hambourg <pascal@plouf.fr.eu.org>
To: Maarten Vanraes <maarten@ba.be>
Cc: netfilter@vger.kernel.org
Subject: Re: advanced routing with NAT: returning UDP traffic
Date: Fri, 26 Sep 2014 15:18:42 +0200 [thread overview]
Message-ID: <542567B2.4060800@plouf.fr.eu.org> (raw)
In-Reply-To: <3545996.7GKZQHL5tP@localhost>
Maarten Vanraes a écrit :
> Op woensdag 24 september 2014 15:38:26 schreef Eliezer Croitoru:
>> VOIP and STREAMING are beasts!!!
>> There are modules which analyze them and also recognize them but you
>> will need to enable them first.
>
> what kind of modules do you know that help conntracking this kind of stuff?
For SIP : nf_conntrack_sip. There is a nf_conntrack_<protocol> helper
for each supported "complex" protocol (FTP, IRC, PPTP...). Their purpose
is to set the state of the first packet of the data connection to
RELATED, and copy the connmark of the control connection to the data
connection. On a box doing NAT, you also need the related
nf_nat_<protocol> module.
> and... what about ipv6 and multiple ISPs? (but without natting, but still no
> bgp or something), won't i still have the same problem?
Yes.
next prev parent reply other threads:[~2014-09-26 13:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-23 12:46 advanced routing with NAT: returning UDP traffic Maarten
2014-09-23 17:41 ` Eliezer Croitoru
2014-09-24 9:35 ` Maarten Vanraes
2014-09-24 9:49 ` Pascal Hambourg
2014-09-24 10:16 ` Maarten Vanraes
2014-09-24 12:38 ` Eliezer Croitoru
2014-09-24 12:52 ` Maarten Vanraes
2014-09-26 13:18 ` Pascal Hambourg [this message]
2014-09-26 14:02 ` Maarten Vanraes
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