[16349] in North American Network Operators' Group
Re: Filtering ICMP (Was Re: SMURF amplifier block list)
daemon@ATHENA.MIT.EDU (Eric Germann)
Tue Apr 21 17:41:08 1998
Date: Tue, 21 Apr 1998 17:31:41 -0400
To: "Alex P. Rudnev" <alex@Relcom.EU.net>
From: Eric Germann <ekgermann@cctec.com>
Cc: "D'Arcy J.M. Cain" <darcy@druid.net>, nanog@merit.edu
In-Reply-To: <Pine.SUN.3.91.980421204110.902P-100000@virgin.relcom.eu.ne
t>
At 08:45 PM 4/21/98 +0400, Alex P. Rudnev wrote:
>1) Traceroute is not affected by this filter;
Just a note that if you are using Winders, tracert does use ICMP Echo
Requests, no high port numbers. FYI.
>2) ICMP is really blocked at many different places of Internet; we answer
>every day _no matter you can't ping www.XXX.com, it's becuase they refuse
>PING's to their network_.
Still don't make it right.
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