From: "Jens Lechtenbörger" <lechten@wi.uni-muenster.de>
To: netfilter@lists.netfilter.org
Subject: NEW vs INVALID
Date: 30 Sep 2002 12:18:26 +0200 [thread overview]
Message-ID: <m2elbb4w7h.fsf@pcwi1068.uni-muenster.de> (raw)
Hi there,
using stateful packet matching I wonder how an INVALID tcp packet is
defined. In particular, I set up a rule to log inbound NEW ssh
connections to port 22:
iptables -A INPUT -m state --state NEW -p TCP --dport 22 -j LOG --log-level 5 --log-prefix "IPTABLES: Legal NEW TCP: "
What confuses me, is that this rule not only logs initial SYN
packets but also (initial) packets with SYN and FIN set.
I thought that such packets should be INVALID...
Is this a bug or a feature?
Jens
next reply other threads:[~2002-09-30 10:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-30 10:18 Jens Lechtenbörger [this message]
2002-09-30 14:39 ` NEW vs INVALID Anders Fugmann
2002-10-01 8:49 ` Cedric Blancher
2002-10-01 9:05 ` Anders Fugmann
2002-10-01 11:19 ` Cedric Blancher
2002-09-30 15:26 ` Cedric Blancher
2002-09-30 15:50 ` Jens Lechtenbörger
2002-10-01 10:33 ` Martijn Klingens
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