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Re: Tunneling scenarios and mechanisms evaluation

To: v6ops@ops.ietf.org
Subject: Re: Tunneling scenarios and mechanisms evaluation
From: David Malone <dwmalone@maths.tcd.ie>
Date: Sat, 13 Mar 2004 19:31:51 +0000
In-reply-to: <20040313113938.GC32481@login.ecs.soton.ac.uk>
References: <991CC9E6-7445-11D8-85CB-00039376A6AA@sun.com> <Pine.LNX.4.44.0403130910220.20751-100000@netcore.fi> <20040313113316.GA11526@walton.maths.tcd.ie> <20040313113938.GC32481@login.ecs.soton.ac.uk>
User-agent: Mutt/1.5.3i

On Sat, Mar 13, 2004 at 11:39:38AM +0000, Tim Chown wrote:
> How do you know how many relay routers exist?   All you can count are ones
> that ISPs/NRENs choose to advertise beyond their borders?

It is explained in the writeup - you look for people who are willing
to encapsulate packets destined to 6to4 addresses by tracerouting to
various parts of the 6to4 network and seeing who encapsulates the
ICMP TTL unreachables.

	David.

Follow-Ups:
- Re: Tunneling scenarios and mechanisms evaluation
  - From: David Malone <dwmalone@maths.tcd.ie>

References:
- Re: Tunneling scenarios and mechanisms evaluation
  - From: Alain Durand <Alain.Durand@Sun.COM>
- Re: Tunneling scenarios and mechanisms evaluation
  - From: Pekka Savola <pekkas@netcore.fi>
- Re: Tunneling scenarios and mechanisms evaluation
  - From: David Malone <dwmalone@maths.tcd.ie>
- Re: Tunneling scenarios and mechanisms evaluation
  - From: Tim Chown <tjc@ecs.soton.ac.uk>

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