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From: pdb@SEI.CMU.EDU.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: Help using ICMP under Ultrix ?
Message-ID: <8612180441.AA01520@ci.sei.cmu.edu>
Date: Wed, 17-Dec-86 23:41:56 EST
Article-I.D.: ci.8612180441.AA01520
Posted: Wed Dec 17 23:41:56 1986
Date-Received: Thu, 18-Dec-86 22:09:53 EST
Sender: daemon@ucbvax.BERKELEY.EDU
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Organization: The ARPA Internet
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Keywords: networks ip icmp
Approved: tcp-ip@sri-nic.arpa

Can anyone give me some pointers about how to access ICMP under Ultrix/4.2BSD ?
I'm trying to write a program to listen for ICMP messages and gather statistics
about them.  I have been able to get Echo Reply messages, but I haven't been
able to get Echo Request, Host/Network unreachable, or routing redirects.

--Pat.