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From: Pablo Neira <pablo@eurodev.net>
To: netfilter-devel@lists.netfilter.org
Subject: bug in icmp tracking?
Date: Tue, 09 Mar 2004 20:44:16 +0100	[thread overview]
Message-ID: <404E1E90.3060509@eurodev.net> (raw)

Hi list,

I sent some ICMP echo's request and I received the echo's reply with no 
problems but the conntrack doesn't track them.

This is because the value returned by icmp_error_track called from 
ip_conntrack_in.

snipped from icmp_error_track(...):

514         if (inside.icmp.type != ICMP_DEST_UNREACH
515             && inside.icmp.type != ICMP_SOURCE_QUENCH
516             && inside.icmp.type != ICMP_TIME_EXCEEDED
517             && inside.icmp.type != ICMP_PARAMETERPROB
518             && inside.icmp.type != ICMP_REDIRECT)
519                 return NULL;

I also had a look at the docs and I didn't find anything like "icmp are 
not tracked because of something...".

So, is this a bug or a feature?

regards,
Pablo

             reply	other threads:[~2004-03-09 19:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-09 19:44 Pablo Neira [this message]
2004-03-09 20:35 ` bug in icmp tracking? Patrick McHardy
2004-03-09 20:47 ` Martin Josefsson
2004-03-09 21:02   ` Pablo Neira

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