Re: Just from curiosity.... (fwd)

[Josh Gilliam <soil () quick net>]

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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