Author Topic: IPv6: Timeout  (Read 2398 times)

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Offline lrosenman

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IPv6: Timeout
« on: April 27, 2016, 12:43:52 PM »
I was trying to hit this site with IPv6, and it just times out.  IPv4 works fine.

How can I help debug it?


Offline saratogaWX

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Re: IPv6: Timeout
« Reply #1 on: April 27, 2016, 02:25:18 PM »
I'm not sure why you're experiencing the issue.  1and1 (where we are hosted) does provide IPV6 and IPV4 access
Quote
04/27/16 11:17:39 dig wxforum.net @ 208.67.222.222
Dig wxforum.net@ns51.1and1.com (217.160.80.164) ...
Authoritative Answer
 Query for wxforum.net type=255 class=1
  wxforum.net A (Address) 192.195.77.199
  wxforum.net AAAA (IPv6 Address) 2607:f1c0:1000:20f3:bbe1:8328:6f32:102e
  wxforum.net MX (Mail Exchanger) Priority: 10 mx00.1and1.com
  wxforum.net MX (Mail Exchanger) Priority: 10 mx01.1and1.com
  wxforum.net NS (Nameserver) ns52.1and1.com
  wxforum.net NS (Nameserver) ns51.1and1.com
  wxforum.net SOA (Zone of Authority)
        Primary NS: ns51.1and1.com
        Responsible person: hostmaster@1and1.com
        serial:2016040500
        refresh:28800s (8 hours)
        retry:7200s (2 hours)
        expire:604800s (7 days)
        minimum-ttl:600s (10 minutes)
Dig wxforum.net@ns52.1and1.com (217.160.81.164) ...
Authoritative Answer
 Query for wxforum.net type=255 class=1
  wxforum.net A (Address) 192.195.77.199
  wxforum.net AAAA (IPv6 Address) 2607:f1c0:1000:20f3:bbe1:8328:6f32:102e
  wxforum.net MX (Mail Exchanger) Priority: 10 mx00.1and1.com
  wxforum.net MX (Mail Exchanger) Priority: 10 mx01.1and1.com
  wxforum.net NS (Nameserver) ns52.1and1.com
  wxforum.net NS (Nameserver) ns51.1and1.com
  wxforum.net SOA (Zone of Authority)
        Primary NS: ns51.1and1.com
        Responsible person: hostmaster@1and1.com
        serial:2016040500
        refresh:28800s (8 hours)
        retry:7200s (2 hours)
        expire:604800s (7 days)
        minimum-ttl:600s (10 minutes)
Dig wxforum.net@208.67.222.222 ...
Non-authoritative answer
Recursive queries supported by this server
 Query for wxforum.net type=255 class=1
  wxforum.net NS (Nameserver) ns51.1and1.com
  wxforum.net NS (Nameserver) ns52.1and1.com
Is your home router configured to use IPV6?  I've limited mine to using IPV4 since I'm kinda old-school.

I do see successful IPV6 accesses in the Apache logs for WXForum.net, so it is working from the webserver side.

Quote
Accesses      IP   Location
    705 2605:a601:9c9:9800:3c9e:3e38:1348:eed5      ---IPV6---- United States, California, Mountain View
    522 2602:306:b8e9:2980:4d3f:da8c:b695:5c19   AT&T Global Network Services, LLC, United States
    387 2601:143:4201:a10d:7174:eaab:2b58:5800   Eli Lilly and Company, LILLY-NET, Indianapolis, US (Lilly Corporate Center)
    359 2602:306:cea3:f660:58d6:c6ed:e6fe:7720      ---IPV6---- United States, Texas, Richardson
    290 2602:304:b12f:c270:3082:521d:7a19:61fb      ---IPV6---- United States, Texas, Richardson
    262 2a02:25a9:0:de59::1   IP2000-ADSL-BAS, France Telecom Orange, FR (FR)
    163 2601:586:4200:9e4c:2df7:1421:fa2e:74f3   AT&T Global Network Services, LLC, United States
    158 2a01:7c8:aaae:225:854a:eaba:ab95:e9d7      ---IPV6---- Netherlands, Noord-Holland, Amsterdam
    144 2601:6c1:8000:ee4d:b04d:80f8:9a85:f888   AT&T Global Network Services, LLC, United States
    135 2607:fb90:7811:84cd:bd8e:cb5:f284:da58      ---IPV6---- United States, Washington, Bellevue
    100 2001:5b0:2927:9490:280:aeff:fe43:1d15   Rogers Cable Communications Inc., RTI-209-5-0-0, Toronto, CA (One Mount Pleasant)
     98 2a01:7c8:aab3:1f3:6db7:88d3:3ba0:27b7      ---IPV6---- Netherlands, Noord-Holland, Amsterdam
     94 2001:41d0:2:e494::      ---IPV6---- France, Nord-Pas-De-Calais, Roubaix
     91 2001:41d0:8:dbb2::1      ---IPV6---- France, Nord-Pas-De-Calais, Roubaix
...
Those are from yesterday's logs (just the IPV6 access counts)
Ken True/Saratoga, CA, USA main site: saratoga-weather.org
Davis VP1+ FARS, Blitzortung RED, GRLevel3, WD, WL, VWS, Cumulus, Meteobridge
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Offline lrosenman

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Re: IPv6: Timeout
« Reply #2 on: April 27, 2016, 02:28:41 PM »
Yes, I have successful IPv6 connectivity to my own hosts (HE.net tunnels), and other IPv6 hosts.   I'll do some more checking tonight when I am back at the house.  I have had an issue with rfc1323 on this setup when I was on Time Warner and had mis-matched MTU/MSS.  That may have re-surfaced here on SuddenLink with you.  I'll play with rfc1323 and such.


Offline saratogaWX

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Re: IPv6: Timeout
« Reply #3 on: April 27, 2016, 03:33:08 PM »
Let us know what you found out with your router adjustment...  Thanks!
Ken True/Saratoga, CA, USA main site: saratoga-weather.org
Davis VP1+ FARS, Blitzortung RED, GRLevel3, WD, WL, VWS, Cumulus, Meteobridge
Free weather PHP scripts/website templates - update notifications on Twitter saratogaWXPHP

Offline lrosenman

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Re: IPv6: Timeout
« Reply #4 on: April 28, 2016, 02:22:41 PM »
Let us know what you found out with your router adjustment...  Thanks!

I didn't get a chance to play last night (too busy getting http://weather.lerctr.org up).  Will do tonight.

Offline lrosenman

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Re: IPv6: Timeout
« Reply #5 on: April 28, 2016, 09:11:49 PM »
toggling the RFC1323 extensions on my pfSense firewall does NOT fix it.  I have to disable IPv6 on my Win 10 laptop to get here.

Do you have root access to run a packet capture with me to see if the SYN is actually making it to you?

Offline saratogaWX

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Re: IPv6: Timeout
« Reply #6 on: April 28, 2016, 09:23:03 PM »
Sadly, no, I don't have root access -- it's hosted on a shared server so there's no availability of low-level network debugging tools :(

Sorry...
Ken True/Saratoga, CA, USA main site: saratoga-weather.org
Davis VP1+ FARS, Blitzortung RED, GRLevel3, WD, WL, VWS, Cumulus, Meteobridge
Free weather PHP scripts/website templates - update notifications on Twitter saratogaWXPHP

Offline lrosenman

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Re: IPv6: Timeout
« Reply #7 on: April 28, 2016, 09:28:23 PM »
Sadly, no, I don't have root access -- it's hosted on a shared server so there's no availability of low-level network debugging tools :(

Sorry...

Understood.  C'Est La Vie :)

 

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