google<<>>Deutsche Telekom

[Job Snijders]

On Sun, Mar 06, 2016 at 10:27:44PM +0100, Mikael Abrahamsson wrote:
> >I can confirm I am also having issues reaching anything behind 15169 via
> >3320.
> >Example src:  2003:de:4be0:a800::/56, dst: 2a00:1450:4016:804::2003.
> >$ traceroute6 google.de
> >traceroute6 to google.de (2a00:1450:4016:804::2003) from
> >2003:de:4be0:a800:cd43:321a:ad4e:b726, 64 hops max, 12 byte packets
> >1  fritz.box  1.793 ms  1.195 ms  1.013 ms
> >2  p200300de4bbf20a80000000000000001.dip0.t-ipconnect.de  10.093 ms *
> >10.843 ms
> >3  * * *
> 
> I don't have any insight, but it could be that Google is now doing the same
> thing to DTAG as it has done to Cogent for a few weeks, ie specifically ask
> its transit partners to not announce 15169 routes to AS3320, and deciding
> AS15169 now to be IPv6 Tier1, and if you don't peer with AS15169, you're not
> getting the routes.

>From https://f-lga1.f.de.net.dtag.de/index.php?pageid=lg&query=ipv6+bgp&para=2a00%3A1450%3A4016%3A804%3A%3A2003&server=194.25.0.218&EXEC=Execute

sh ipv6 bgp 2a00:1450:4016:804::2003
BGP routing table entry for 2a00:1450:4016::/48
Paths: (1 available, best #1, table Default-IP-Routing-Table)
  209 15169
	::ffff:194.25.5.239 from 62.154.10.67 (194.25.5.239)
	Origin IGP, metric 4000000, localpref 33, valid, internal, best
	Community: 3320:1840 3320:2020 64512:200
	Originator: 194.25.5.239, Cluster list: 0.0.2.189
	Last update: Sun Mar  6 09:42:37 2016

It is curious the local preference is not 100