[164234] in North American Network Operators' Group
Re: www.att.net ipv6 traceroute
daemon@ATHENA.MIT.EDU (Robert Glover)
Mon Jul 1 16:21:26 2013
Date: Mon, 01 Jul 2013 13:04:59 -0700
From: Robert Glover <robertg@garlic.com>
To: David Hill <dhill@mindcry.org>
In-Reply-To: <20130701143421.GB14901@d4f4ef01f7f3a8c3526c7461b9d857e63ca45e1f3a91c2cc>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 07/01/2013 07:34 AM, David Hill wrote:
> Anyone else noticing odd ipv6 traceroutes to www.att.net
> (2001:1890:1c01:2::40)?
>
> For example, the first traceroute originating in Chicago, and if the
> hostnames are anything to go by:
>
> Chicago -> Dallas -> Atlanta -> Miama -> NYC -> Amsterdam ->
> Frankfurt -> France -> D.C. -> Atlanta...
>
>
Looks OK from here:
(From 2607:4B00::/32 - SF Bay Area, Native):
mushroom#traceroute www.att.net
Translating "www.att.net"...domain server (216.139.32.37) [OK]
Type escape sequence to abort.
Tracing the route to www.att.net (2001:1890:1C01:2::40)
1 2001:550:2:C::2:1 0 msec 4 msec 4 msec
2 2001:550::142 40 msec
2001:550::113 52 msec
2001:550::142 48 msec
3 2001:550::1040 40 msec
2001:550::1041 48 msec
2001:550::1040 48 msec
4 2001:550:4::4C 44 msec 36 msec 44 msec
5 2001:550:3::7A 40 msec 40 msec 44 msec
6 sffca22crs.ipv6.att.net (2001:1890:FF:FFFF:12:122:86:122) 112 msec
108 msec 112 msec
7 la2ca22crs.ipv6.att.net (2001:1890:FF:FFFF:12:122:31:133) 104 msec
112 msec 108 msec
8 dlstx22crs.ipv6.att.net (2001:1890:FF:FFFF:12:122:28:177) 108 msec
104 msec 112 msec
9 attga21crs.ipv6.att.net (2001:1890:FF:FFFF:12:122:28:173) 108 msec
100 msec 108 msec
10 attga409me3.ipv6.att.net (2001:1890:FF:FFFF:12:122:120:244) 112 msec
124 msec 100 msec
11 *
2001:1890:C00:8802::11CC:6C6D 108 msec 104 msec
12 * * *
13 * * *
14 * * *
-Robert
