[Scamper-dev] [tjc@ecs.soton.ac.uk: [6memo] [matthew@ripe.net: Announcing Tunneldiscovery - RIPE NCC's IPv6 Tunnel Detection Tool] {03}]

[k claffy]

----- Forwarded message from Tim Chown <tjc at ecs.soton.ac.uk> -----

  Date: Thu, 13 Nov 2003 23:31:58 +0000
  From: Tim Chown <tjc at ecs.soton.ac.uk>
  Subject: [6memo] [matthew at ripe.net: Announcing Tunneldiscovery - RIPE NCC's IPv6 Tunnel Detection Tool] {03}
  To: 6memo at consulintel.es
  Cc: Nicholas J Lamb <njl at ecs.soton.ac.uk>, David G Mills <dgm at ecs.soton.ac.uk>,
          Michael Saywell <ms at ecs.soton.ac.uk>
  Mail-Followup-To: 6memo at consulintel.es,
  	Nicholas J Lamb <njl at ecs.soton.ac.uk>,
  	David G Mills <dgm at ecs.soton.ac.uk>,
  	Michael Saywell <ms at ecs.soton.ac.uk>
  
  Ah, but....
  
  http://www.ripe.net/ttm/Plots/pmtu/tracepath.cgi?sourceBox=tt76&destBox=tt01&pmtu=1068678903%20tt76.ripe.net%20tt01.ripe.net%201480%20(2001:630:d0:100::1%201480,%202001:610:240:2:ffff::228%20reached)&pmtuBack=1068678913%20tt01.ripe.net%20tt76.ripe.net%201500%20(2001:630:d0:131::100%20reached)
  
  shows that correctly the tunnel is foremd at hop 4 from us (nice tool!)
  but that the reverse view on this page does not show the tunnel.
  
  also some suggestion of assymetric routing - wtf do we go via hurricane
  electric to get to RIPE NCC? :)
  
  tim
  
  On Thu, Nov 13, 2003 at 11:53:47PM +0100, Henk Uijterwaal (RIPE-NCC) wrote:
  > On Thu, 13 Nov 2003, Tim Chown wrote:
  > 
  > > So RIPE-NCC started doing the 6MEMO work early :)
  > 
  > I always said that we'd try to combine 6MEMO and work for other customers.
  > 
  > What would be really helpful is if you could take a look at the data for
  > the box in Southampton and confirm (as far as possible) that we what we
  > see as tunnel or native, is indeed a tunnel or native.
  > 
  > 
  > Henk
  > 
  > ------------------------------------------------------------------------------
  > Henk Uijterwaal                             Email: henk.uijterwaal at ripe.net
  > RIPE Network Coordination Centre            WWW: http://www.ripe.net/home/henk
  > P.O.Box 10096          Singel 258           Phone: +31.20.5354414
  > 1001 EB Amsterdam      1016 AB Amsterdam    Fax: +31.20.5354445
  > The Netherlands        The Netherlands      Mobile: +31.6.55861746
  > ------------------------------------------------------------------------------
  > 
  > That problem that we weren't having yesterday, is it better? (Big ISP NOC)

----- End forwarded message -----