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Re: Just from curiosity.... (fwd)
From: Josh Gilliam <soil () quick net>
Date: Thu, 30 Jan 1997 21:31:14 -0800 (PST)


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 -

-------------------------------------------------------------------------
|           roy alcala            |                  MCI                  |
|         IP Development          |          2100 Reston Parkway          |
|           roy () mci net           |        Reston, Virginia  22091        |
|    beep-roy () mci net (pager)     |            (703) 715-7425             |
|   (800) SKY-PAGE PIN 1633689    |            (703) 715-7066 FAX         |
-------------------------------------------------------------------------



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.


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