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Author Topic: Strange IPv6 issue that WON'T GO AWAY.  (Read 3896 times)

MeStinkBAD

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Strange IPv6 issue that WON'T GO AWAY.
« on: June 01, 2010, 08:10:05 PM »

I have an Airport Extreme (w/ IPv6 support). I have Cox HSI which includes an automatic tunnel configuration. And it works great!

IPv6 for Windows worked rather well too for a good many months... then BOOM I notice IPv6 not working. I go to investigate. I swear Windows is now trying to make a 6to6to4 tunnel. Well there is no such thing so obviously I'm nuts or Windows is crazy!

I'll show you the ipconfig info below.
Code: [Select]
Ethernet adapter Local Area Connection 2:

        Connection-specific DNS Suffix  . : ph.cox.net
        Description . . . . . . . . . . . : Intel(R) PRO/1000 EB Network Connection with I/O Acceleration #2
        Physical Address. . . . . . . . . : 00-00-00-00-00-00
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 10.0.1.111
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        IP Address. . . . . . . . . . . . : 2002:44e2:1771:0:58fa:9d8e:1300:4863
        IP Address. . . . . . . . . . . . : 2002:44e2:1771:0:217:f2ff:fe05:c58d
        IP Address. . . . . . . . . . . . : ::58fa:9d8e:1300:4863                                  
        IP Address. . . . . . . . . . . . : ::217:f2ff:fe05:c58d
        IP Address. . . . . . . . . . . . : fe80::217:f2ff:fe05:c58d%4
        Default Gateway . . . . . . . . . : 10.0.1.1
                                            fe80::224:36ff:fe9e:9cc8%4
                                            fe80::223:12ff:fef8:9b15%4
        DHCP Server . . . . . . . . . . . : 10.0.1.1
        DNS Servers . . . . . . . . . . . : 10.0.1.1
                                            fec0:0:0:ffff::1%1
                                            fec0:0:0:ffff::2%1
                                            fec0:0:0:ffff::3%1
        Primary WINS Server . . . . . . . : 192.168.100.1
        Lease Obtained. . . . . . . . . . : Tuesday, June 01, 2010 12:06:01 PM
        Lease Expires . . . . . . . . . . : Tuesday, June 08, 2010 12:06:01 PM

The two IP addresses..
Code: [Select]
       IP Address. . . . . . . . . . . . : 2002:44e2:1771:0:58fa:9d8e:1300:4863
       IP Address. . . . . . . . . . . . : ::58fa:9d8e:1300:4863


Shouldn't be there.  They weren't there before when it worked. What is going on?
« Last Edit: June 01, 2010, 08:12:56 PM by MeStinkBAD »
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jimb

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Re: Strange IPv6 issue that WON'T GO AWAY.
« Reply #1 on: June 01, 2010, 09:15:45 PM »

Make sure your airport isn't doing some sort of 6to4 thing.  I think Windows will also try to do 6to4 under certain conditions (not really sure what those are though).

You can make sure it's turned off in windows by doing: netsh int ipv6 6to4 set state=disabled

It'd also help to see the output of these commands:

netsh int ipv6 show routes
netsh int ipv6 show addr level=verbose
« Last Edit: June 01, 2010, 09:19:47 PM by jimb »
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cholzhauer

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Re: Strange IPv6 issue that WON'T GO AWAY.
« Reply #2 on: June 02, 2010, 04:27:06 AM »

Quote
You can make sure it's turned off in windows by doing: netsh int ipv6 6to4 set state=disabled

You may need to drop the equals sign, so it looks like

Code: [Select]
netsh int ipv6 6to4 set state disabled
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