[182968] in North American Network Operators' Group

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Re: Strange traceroute result to VM in EC2, Singapore

daemon@ATHENA.MIT.EDU (John Kristoff)
Thu Aug 6 12:14:26 2015

X-Original-To: nanog@nanog.org
Date: Thu, 6 Aug 2015 11:12:45 -0500
From: John Kristoff <jtk@cymru.com>
To: Glen Kent <glen.kent@gmail.com>
In-Reply-To: <CAPLq3UP-dDPHH_O=ar3M_yvQjcXtHNK-tTbkXfJX7egtGgchRQ@mail.gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

On Thu, 6 Aug 2015 21:35:46 +0530
Glen Kent <glen.kent@gmail.com> wrote:

> Any pointers on this would be very helpful.

Presumably you're doing this from a Linux host.  You might try these
flags to see what you get:

       -T, --tcp
            Use TCP SYN for probes

       -e, --extensions
              Show  ICMP  extensions  (rfc4884).  The  general  form is CLASS/TYPE: followed by a hexadecimal dump.  The MPLS (rfc4950) is shown
              parsed, in a form: MPLS:L=label,E=exp_use,S=stack_bottom,T=TTL (more objects separated by / ).

and a good general reference for the netop:

  <http://cluepon.net/ras/traceroute.pdf>

John

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