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Date:      Wed, 24 Jan 1996 09:46:14 +0100 (MET)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        mrcpu@cdsnet.net (Jaye Mathisen)
Cc:        hackers@freebsd.org
Subject:   Re: Anybody know what this message means?
Message-ID:  <199601240846.JAA09875@uriah.heep.sax.de>
In-Reply-To: <Pine.BSF.3.91.960123212747.349Z-100000@schizo.cdsnet.net> from "Jaye Mathisen" at Jan 23, 96 09:28:50 pm

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As Jaye Mathisen wrote:
> 
> 
> This is from a tcpdump.
> 
> 
> timestamp... xxx.xxx.xxx.xxx > host-on-my-net icmp: time exceeded in-transit
> [tos 0xc0]

The TTL (time-to-live) field of a packet got zero on transmission, so
the sender was notified that it got dropped.

This is the usual method how traceroute works, see the man page.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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