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xur17

join:2003-03-26
Cincinnati, OH

IPV6 Issues - Facebook and Engadget

I currently have a ipv6 tunnel setup through tunnelbroker.net using my ddwrt router. I share this connection with 3 other roommates, and I haven't heard any complaints or had any issues yet. Yesterday in the afternoon, I started to notice that Facebook and Engadget (and some other ipv6 sites, but not all ipv6 sites) wouldn't load. They start trying to load the page, and just hang. Other sites such as google, etc that are via ipv6 load fine.

I manually found the ipv6 addresses for these sites, and used wget to try to access the sites to rule out dns issues. This also had the same issue (the sites wouldn't load). I ended up disabling the tunnel last night before my roommates got home, to prevent any issues. This morning I tried the tunnel again with similar results.

Any recommendations? This doesn't seem to be a tunnel configuration issue since some ipv6 sites load perfectly fine. Also, pinging the sites seems to work fine, but loading does not work.


Cabal
Premium
join:2007-01-21
Reviews:
·Suddenlink
It's possible the IPv4 endpoint you're using (or its datacenter, etc) is having a problem. I've used HE.net tunneling for a couple years and notice such downtime every few months, but never more than a minute or so.
--
If you can't open it, you don't own it.

derekivey

join:2006-03-30
San Jose, CA
kudos:1
Reviews:
·Verizon FiOS
reply to xur17
I'm also having issues. What HE tunnel server are you on? I'm on tserv13.ash1. I can't access whatismyipv6.com, facebook.com, or engadget.com. The weird thing is, I can ping these sites just fine. Just can't get to them in a web browser. It's been happening since yesterday. I opened a ticket with HE about it earlier today and they haven't had a chance to respond yet.

Derek

xur17

join:2003-03-26
Cincinnati, OH

2 edits
said by derekivey:

I'm also having issues. What HE tunnel server are you on? I'm on tserv13.ash1. I can't access whatismyipv6.com, facebook.com, or engadget.com. The weird thing is, I can ping these sites just fine. Just can't get to them in a web browser. It's been happening since yesterday. I opened a ticket with HE about it earlier today and they haven't had a chance to respond yet.

Derek

I am using 216.66.22.2. Is that the same as your's?

Edit: It is the same.

That sounds exactly like the issue I am having. I am guessing the issue is on Hurricane Electric's end since this is occurring for several sites. Let us know when you hear back from HE.

derekivey

join:2006-03-30
San Jose, CA
kudos:1
Yup, same server. Must be an issue with HE then.


Napsterbater
Meh
Premium,MVM
join:2002-12-28
Milledgeville, GA
reply to xur17
I'm having the same issues on an HE tunnel out of Ashburn, VA on tserv13

derekivey

join:2006-03-30
San Jose, CA
kudos:1
reply to xur17
I got a response from HE asking if I'm still seeing the issue. Now I can't seem to ping anything. Are you guys still having issues?


Napsterbater
Meh
Premium,MVM
join:2002-12-28
Milledgeville, GA
Reviews:
·Windstream
I still cant load facebook, but I can trace to it.

TBH it kinda is acting like there is a MTU issue.

C:\Users\Napsterbater>tracert www.facebook.com
 
Tracing route to www.facebook.com [2a03:2880:10:8f02:face:b00c:0:25]
over a maximum of 30 hops:
 
  1    <1 ms    <1 ms    <1 ms  fe80::d2d0:fdff:fe1a:ca90
  2    38 ms    38 ms    39 ms  Napsterbater-1.tunnel.tserv13.ash1.ipv6.he.net [2001:470:7:afc::1]
  3    35 ms    34 ms    38 ms  gige-g4-12.core1.ash1.he.net [2001:470:0:90::1]
  4    95 ms    34 ms    34 ms  facebook-as32934.10gigabitethernet6.switch3.ash1.he.net [2001:470:0:1bf::2]
  5    34 ms    34 ms    34 ms  ae1.bb02.iad1.tfbnw.net [2620:0:1cff:dead:beef::80]
  6   123 ms   124 ms   124 ms  ae7.bb04.prn1.tfbnw.net [2620:0:1cff:dead:beef::12a]
  7   127 ms   155 ms   169 ms  ae3.dr06.prn1.tfbnw.net [2620:0:1cff:dead:beef::1f]
  8   181 ms   175 ms   238 ms  2620:0:1cff:dead:beee::14b
  9   127 ms   127 ms   126 ms  www6-11-08-prn1.facebook.com [2a03:2880:10:8f02:face:b00c:0:25]
 
Trace complete.
 

--
ASUS M4A79T Deluxe | AMD Phenom II x3 720 BE AM3 w/4 Cores @ 3.41Ghz(OC) | 4Gb DDR3 Memory @ 1600mhz | Sapphire ATI HD4870 1GB 800mhz/1000mhz(OC) | 2x500GB HDD's Raid 0 | Windows 7 Ultimate x64 Build 7600 (RTM) | Windstream DSL 12m (14.9m Sync)/766k

derekivey

join:2006-03-30
San Jose, CA
kudos:1
I was thinking the same thing. I double checked my MTU and my pfSense interface is set to 1280. I also tried messing with my tunnel's MTU using their Advanced settings page.


Napsterbater
Meh
Premium,MVM
join:2002-12-28
Milledgeville, GA
Im running a 1480 MTU as I have been doing.

I'm sure they get it taken care of soon, They have great support for being a free service.


Napsterbater
Meh
Premium,MVM
join:2002-12-28
Milledgeville, GA
reply to xur17
Working now for both sites.

derekivey

join:2006-03-30
San Jose, CA
kudos:1
Yup, same here. Thanks HE! They do have awesome support!

xur17

join:2003-03-26
Cincinnati, OH
said by derekivey:

Yup, same here. Thanks HE! They do have awesome support!

Agreed. It seems to be working for me now too.

derekivey

join:2006-03-30
San Jose, CA
kudos:1
reply to derekivey
Hey are you guys having trouble getting to comcast6.net? I can't get to that now. Seems like the same issue we had with those other sites.


whfsdude
Premium
join:2003-04-05
Washington, DC
Reviews:
·Comcast
said by derekivey:

Hey are you guys having trouble getting to comcast6.net? I can't get to that now. Seems like the same issue we had with those other sites.

There is a known issue with their load balancer not allowing ICMP. So PMTU issues galore!

»www.gossamer-threads.com/lists/n···v6/34197

»[IPv6] Comcast6.net Down?

derekivey

join:2006-03-30
San Jose, CA
kudos:1
Thanks! I suppose I should've searched first haha. My bad.
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