North American Network Operators Group
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: 6to4 routes disappeared from most of North America?

  • From: Joe Abley
  • Date: Tue Jul 26 21:05:23 2005 
On 26 Jul 2005, at 20:44, Todd Vierling wrote:
Maybe I missed it, but was there some concerted effort to remove or block
access to the 2002::/16 route on the v6 backbone in North America recently?
Connectivity to/from 6to4-only hosts seems sketchy at best. Of the US hosts
I've tried, only ISC has responded at all to a 6to4 packet -- and they're
routing 2002::/16 through WIDE in Japan from what I can tell.
Right now we're using a 6to4 relay router in Verio's network for most traffic, although we do see other paths, so mileage may vary depending on which edge router the outbound traffic from ISC happens to exit through.

[email protected]> traceroute 2002::
traceroute6 to 2002:: (2002::) from 2001:4f8:4::2, 30 hops max, 12 byte packets
1 r2.r3.sfo2.isc.org (2001:4f8:0:1::6:2) 0.891 ms r2-2.r3.sfo2.isc.org (2001:4f8:0:1::f:2) 0.736 ms r2.r3.sfo2.isc.org (2001:4f8:0:1::6:2) 0.675 ms
2 r3-sfo2.r8.pao1.isc.org (2001:4f8:0:1::5:1) 1.701 ms 1.606 ms 1.517 ms
3 r8.r7.pao1.isc.org (2001:4f8:0:1::4:1) 1.505 ms r8-2.r7.pao1.isc.org (2001:4f8:0:1::3:1) 1.855 ms 1.472 ms
4 p4-2-0-2.r00.plalca01.us.bb.verio.net (2001:418:0:5000::1d) 1.737 ms 9.352 ms 1.55 ms
5 p16-0-1-0.r20.plalca01.us.bb.verio.net (2001:418:0:2000::189) 1.486 ms 1.588 ms 1.477 ms
6 ge-2-0.r02.plalca01.us.bb.verio.net (2001:418:0:2000::1fe) 1.574 ms 1.547 ms 1.537 ms
^C
[email protected]>

We had a local 6to4 relay running for some time in the lab, but it's not up right now. If there's general interest in a 6to4 relay in AS 3557 for public use, we could definitely look at making one available.


Joe