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I added IPv6 on my Ubuntu 14.04.3 LTS laptop by adding an OpenVPN tunnel to my Ubuntu 14.04.3 LTS server that has IPv6. I am using masquerading on both IPv6 and IPv4.

Using StackExchange used to have a regularly updated count of updated/new questions where I could click and have them loaded without reloading the whole page. Now it is no longer there.

I do not see any AAAA records for a few StackExchange hosts I checked.

laptop2/stackex /home/stackex 1> a unix.stackexchange.com
unix.stackexchange.com. 300 in  a   104.16.119.182
unix.stackexchange.com. 300 in  a   104.16.117.182
unix.stackexchange.com. 300 in  a   104.16.118.182
unix.stackexchange.com. 300 in  a   104.16.115.182
unix.stackexchange.com. 300 in  a   104.16.116.182
laptop2/stackex /home/stackex 2> aaaa unix.stackexchange.com
laptop2/stackex /home/stackex 3> aaaa linuxhomepage.com
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::a
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::b
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::c
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::d
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::e
linuxhomepage.com.  21600   in  aaaa    2a02:348:61:5d75::f
laptop2/stackex /home/stackex 4> 

Any idea what I broke?

Yes, this seems strange, so I am wondering.

closed as off-topic by Scott, Braiam, Anthon, slm Jan 11 '16 at 5:54

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions describing a problem that can't be reproduced and seemingly went away on its own (or went away when a typo was fixed) are off-topic as they are unlikely to help future readers." – Braiam, slm
If this question can be reworded to fit the rules in the help center, please edit the question.

  • 4
    Would you add more details, masquerading/routing/vpn rules? – Rui F Ribeiro Jan 1 '16 at 13:20
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All those sites that dont show ipv6 address will have this problem. May be stack-exchange is not running on IPV6:

root@ijaz-HP-EliteBook-8560p:~# host www.google.com
www.google.com has address 216.58.210.68
www.google.com has IPv6 address 2a00:1450:4009:811::2004

root@ijaz-HP-EliteBook-8560p:~# host www.ncp.edu.pk
www.ncp.edu.pk has address 111.68.96.165
www.ncp.edu.pk has IPv6 address 2400:fc00:854a:aaaa:700d:d110:e593:8d00

root@ijaz-HP-EliteBook-8560p:~# host stackexchange.com
stackexchange.com has address 104.16.116.182
stackexchange.com has address 104.16.119.182
stackexchange.com has address 104.16.118.182
stackexchange.com has address 104.16.115.182
stackexchange.com has address 104.16.117.182

why it is not showing any ipv6 address.

  • Excellent point, modding you up. – Rui F Ribeiro Jan 1 '16 at 14:11
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    i had faced this problem with github.com – Ijaz Ahmad Khan Jan 1 '16 at 14:31
  • This does not provide an answer to the question. – kasperd Jan 17 '16 at 12:05

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