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IPv6 connectivity issues today 8/12/13

RPMozley
Pro
Posts: 1,271
Thanks: 56
Fixes: 9
Registered: ‎04-11-2011

IPv6 connectivity issues today 8/12/13

Hi all,
Just wanted to check in with others to see if you have some connectivity issues with some ipv6 sites. On one vista laptop I've been seeing some problems, one being with http://test-ipv6.com and some mirrors reporting no ipv6 connection (dns lookups in the test & red status in the mirror list). Most of the other mirrors report everything is ok so I don't think it could be a configuration error.
I should really test on another device but trying it on this iOS iPod isn't very accurate with the problem of 'happy eyeballs' (I think that's what it's called) switching between v4 & v6.
That's RPM to you!!
9 REPLIES 9
SimonHobson
Rising Star
Posts: 190
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Registered: ‎30-07-2007

Re: IPv6 connectivity issues today 8/12/13

Not noticed anything myself, but just been to the test-ipv6 site and it reports that my browser is preferring an IPv4 connection with them - according to their "why …" pages, Safari will use whichever is faster. The "Other sites" tab shows nearly everything as available over IPv6.
Nibiru
Community Veteran
Posts: 5,797
Thanks: 426
Fixes: 12
Registered: ‎11-08-2007

Re: IPv6 connectivity issues today 8/12/13

No problems at all,  if anything I am getting better IPv6 connectivity than I have ever seen previously.  Smiley
I built myself a new (Linux) router a couple of days ago, which includes the IPv6 tunnel endpoint, and have been testing it ever since.
The IPv6 connectivity has been faultless.  Cool
http://test-ipv6.com and http://www.thinkbroadband.com/ipv6/test-ipv6.html says it is all working without any issues.

Do you have a TBB ping graph on your IPv6 connection, to see if your tunnel is dropping ?  Huh
Plusnet FTTC 80/20 IPv4/30, Hurricane Electric 6in4 IPv6/48, Pulse8 landline & calls, SamKnows 600N
Vigor 130 modem, pfSense 2.6.0 router, DrayTek WAPs, Devolo dLAN 500, Gigaset N300A-IP VoIP DECT
Nibiru
Community Veteran
Posts: 5,797
Thanks: 426
Fixes: 12
Registered: ‎11-08-2007

Re: IPv6 connectivity issues today 8/12/13

The Hurricane Electric tunnel service status says everything is working OK - http://tunnelbroker.net/status.php
Plusnet FTTC 80/20 IPv4/30, Hurricane Electric 6in4 IPv6/48, Pulse8 landline & calls, SamKnows 600N
Vigor 130 modem, pfSense 2.6.0 router, DrayTek WAPs, Devolo dLAN 500, Gigaset N300A-IP VoIP DECT
RPMozley
Pro
Posts: 1,271
Thanks: 56
Fixes: 9
Registered: ‎04-11-2011

Re: IPv6 connectivity issues today 8/12/13

TBB ping seems fine. The issues appear to be rather intermittent. Sometimes lots of red in the mirrors list, then reload the page less appear. Very odd Undecided
That's RPM to you!!
RPMozley
Pro
Posts: 1,271
Thanks: 56
Fixes: 9
Registered: ‎04-11-2011

Re: IPv6 connectivity issues today 8/12/13

Well I think I've tracked down the error. It appears to be an intermittent DNS failure on AAAA requests, coming from OpenDNS server in London.
As soon as I change preferred server the problems go away. I've just recently submitted a support ticket to OpenDNS but not really sure I'll get much from them. Huh
That's RPM to you!!
chrcoluk
Grafter
Posts: 1,990
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Registered: ‎11-12-2013

Re: IPv6 connectivity issues today 8/12/13

you guys are on the new ipv6 trial already?
Nibiru
Community Veteran
Posts: 5,797
Thanks: 426
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Registered: ‎11-08-2007

Re: IPv6 connectivity issues today 8/12/13

No,  we are using the Hurricane Electric 6in4 tunnel  -  https://www.tunnelbroker.net/  Wink
Plusnet FTTC 80/20 IPv4/30, Hurricane Electric 6in4 IPv6/48, Pulse8 landline & calls, SamKnows 600N
Vigor 130 modem, pfSense 2.6.0 router, DrayTek WAPs, Devolo dLAN 500, Gigaset N300A-IP VoIP DECT
SimonHobson
Rising Star
Posts: 190
Thanks: 41
Registered: ‎30-07-2007

Re: IPv6 connectivity issues today 8/12/13

I think most of us are on tunnels with a broker - probably mostly Hurricane Electric.
If you're not aware, they provide a free IPv6 tunnelbroker service which means you can get a real IPv6 connection as far as both your devices and the outside world are concerned. I've set up 2 tunnels, one at home, one at work - and it means I can directly access some of my home stuff (what I allow with firewall rules) without using a VPN or SSH tunnel.
The free training course is well worth doing, seems to be reasonably well structured to lead you through increasingly difficult steps, introducing new stuff at each step.
avatastic
Grafter
Posts: 1,136
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Registered: ‎30-07-2007

Re: IPv6 connectivity issues today 8/12/13

Quote from: purleigh
No,  we are using the Hurricane Electric 6in4 tunnel  -  https://www.tunnelbroker.net/   Wink

Speak for yourself I tunnel to a VPS  8). (Mostly because I wanted to see how hard it would be to eliminate the broker (and the NSA))
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