Bug Description

I know this is not a bug in the software, but in the network connection of some of the security.ubuntu.com servers via IPv6. Which leads to the problem that no software update is possible without changes in the /etc/gai.conf to prefer IPv4. It resolves to following IP addresses:

$ host security.ubuntu.com

security.ubuntu.com has address 91.189.91.13

security.ubuntu.com has address 91.189.91.14

security.ubuntu.com has address 91.189.91.15

security.ubuntu.com has address 91.189.91.23

security.ubuntu.com has address 91.189.91.24

security.ubuntu.com has address 91.189.92.200

security.ubuntu.com has address 91.189.92.201

security.ubuntu.com has address 91.189.88.149

security.ubuntu.com has IPv6 address 2001:67c:1562::15

security.ubuntu.com has IPv6 address 2001:67c:1562::17

security.ubuntu.com has IPv6 address 2001:67c: 1360:8c01: :19

security.ubuntu.com has IPv6 address 2001:67c:1562::13

security.ubuntu.com has IPv6 address 2001:67c:1562::16

security.ubuntu.com has IPv6 address 2001:67c: 1360:8c01: :18

security.ubuntu.com has IPv6 address 2001:67c:1562::14

All IPv6 addresses that start with 2001:67c:1562:: are not reachable from some providers. e.g. Hurricane Electric's, but the error seems to be on the server site. The 2001:67c:1360:8c01 ones work.

An MTR from inside HE's network shows it gets into XO's network, then dies where it hands off to Internap who gets the routes from Occaid/TowardEX, or it used to. Now going via Telia, it still dies inside Internap's network. Not an HE issue - please inform your networks guys. Thx.

1.|-- f0-6.switch14. fmt2.he. net 0.0% 5 12.0 5.5 0.6 13.5 6.7

2.|-- 10ge8-4. core1.fmt2. he.net 0.0% 5 0.6 0.6 0.5 0.7 0.0

3.|-- 10ge1-1. core1.sjc2. he.net 0.0% 5 10.3 5.1 1.0 12.0 5.6

4.|-- sjo-eqx- s1-link. telia.net 0.0% 5 1.0 1.1 1.0 1.1 0.0

5.|-- bost-b1- v6.telia. net 0.0% 5 77.4 77.4 77.3 77.4 0.0

6.|-- internap- ic-304640- bost-b 0.0% 5 78.3 78.3 78.2 78.4 0.0

7.|-- ??? 100.0 5 0.0 0.0 0.0 0.0 0.0