From: Jean-Christian Imbeault <jc@mega-bucks.co.jp>
To: netfilter@lists.netfilter.org
Subject: ICMP: What should be blocked?
Date: Wed, 05 Mar 2003 16:09:57 +0900 [thread overview]
Message-ID: <3E65A2C5.3030007@mega-bucks.co.jp> (raw)
I been googling the web trying to find what rules I should set up for
ICMP but I've seen some people say one thing while other say something
completely different.
One question I have not been able to find an answer to though, should I
block ICMP messages of type 11 (TTL exceeded)?
Also if anyone knows of a good resource that explains what ICMP messages
I should block (why and how :) could they let me know? I understand that
it of course depends on my level of paranoia and how friendly I want to
be to the rest of the net, but I get the feeling from my readings that
the are some ICMP messages that just should not be let through a
firewall ....
Thanks,
Jc
next reply other threads:[~2003-03-05 7:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-05 7:09 Jean-Christian Imbeault [this message]
2003-03-05 10:20 ` ICMP: What should be blocked? Maciej Soltysiak
2003-03-06 21:12 ` Manuel Samper
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