traceroute (the original), which is maintained by Lawrence Berkeley National Laboratory, already supports this and can be obtained from ftp://ftp.ee.lbl.gov/traceroute-1.4a4.tar.Z (Jan 7 1997). Josh Gilliam -- soil@quick.net On Wed, 29 Jan 1997 17:20:30 +0000 (GMT), in message <199701291720.RAA18152@alice.wonderland.org>, Peter Galbavy wrote:
This change (and any other new ICMP messages) might be worth incorporating into the standard traceroute...
Forwarded message:
From owner-nanog@merit.edu Sat Jan 18 19:35:50 1997 Date: Sat, 18 Jan 1997 08:55:31 -0700 (MST) From: Ehud Gavron <GAVRON@ACES.COM> Subject: Re: Just from curiosity.... In-reply-to: "Your message dated Fri, 17 Jan 1997 18:21:36 -0500" <199701172321.SAA22758@widderhen.reston.mci.net> To: roy alcala <roy@mci.net> Cc: Brian Tackett <cym@acrux.net>, nanog@merit.edu, Rob Barron <rbarron@acrux.net>, GAVRON@ACES.COM Message-id: <01IECPNYCFYC8WXTGM@ACES.COM> Organization: ACES Research Inc. MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII References: <Pine.GSO.3.93.970117162448.21258A-100000@pluto> Sender: owner-nanog@merit.edu
ftp://ftp.aces.com/software/traceroute/traceroute_new.c ftp://ftp.aces.com/software/traceroute/0_readme.txt
This BETA version incorporates two new changes: 1: It will show a !A for administratively-prohibited packets (see below) 2: It will allow modification of a line terminator from standard <LF> to anything else, allowing, for instance, dynamic access from web browsers (see www.opus1.com/www/traceroute.html)
Feel free to test.
Ehud
You see this behavior because your traceroute program does not understand the ICMP "administratively prohibited" (ICMP type 3, code 13 - defined in RFC 1812) messages being sent back to it from cpe1.reston.mci.net.
Cisco routers typically return ICMP messages of this nature to the source of traffic which is being blocked by a traffic-filtering ACL on the Cisco router.
- roy -
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Anyone have any insights on what causes the following interesting data from a traceroute?
10 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 39 ms 36 ms 38 ms 11 * cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 36 ms * 12 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 38 ms * * 13 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 41 ms * * 14 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 194 ms * * 15 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 36 ms * * 16 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 36 ms * 37 ms 17 * cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 37 ms * 18 cpe1-fddi4-0.Reston.mci.net (204.70.176.102) 37 ms * 35 ms
-- Peter Galbavy @ Home in Wonderland http://www.wonderland.org/ http://www.whirl-y-gig.org.uk/ http://www.demon.net Be remembered not for your final destination, but for your journey.