From: Aleksandar Milivojevic <amilivojevic@pbl.ca>
To: Netfilter User Mailinglist <netfilter@lists.netfilter.org>
Subject: ICMP and connection tracking
Date: Thu, 20 May 2004 10:06:46 -0500 [thread overview]
Message-ID: <40ACC986.8060103@pbl.ca> (raw)
Are ICMP packets related to new and established TCP connections and UDP
traffic considered to be part of them, or do I need to have explicit
rules like
-A INPUT -p icmp -m state --state RELATED -j ACCEPT
for things like path MTU discovery, traceroute, ICMP port unreachables,
and so on to work properly?
Any downsides of using generic rule like above (if it is needed)?
--
Aleksandar Milivojevic <amilivojevic@pbl.ca> Pollard Banknote Limited
Systems Administrator 1499 Buffalo Place
Tel: (204) 474-2323 ext 276 Winnipeg, MB R3T 1L7
next reply other threads:[~2004-05-20 15:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-20 15:06 Aleksandar Milivojevic [this message]
2004-05-20 15:37 ` ICMP and connection tracking Antony Stone
2004-05-20 16:24 ` Aleksandar Milivojevic
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