From: Dirk Morris <dmorris@metaloft.com>
To: netfilter@lists.netfilter.org
Subject: matching on ICMP responses
Date: Sun, 18 Jul 2004 13:57:14 -0700 [thread overview]
Message-ID: <40FAE42A.6090300@metaloft.com> (raw)
Is there a way to match only certain ICMP responses that relate to
certain other sessions.
example: is there a rule/match I can use to specify that I want to block
all ICMP port unreachable errors, but _only_
in response to UDP packets (not TCP). Or maybe both TCP and UDP, but
only port 123. etc etc.
Does this functionality exist? (possibly in some patch?)
next reply other threads:[~2004-07-18 20:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-18 20:57 Dirk Morris [this message]
2004-07-18 21:09 ` matching on ICMP responses Antony Stone
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