Teredo - sometimes yes, sometimes no ??

[Apprentice]

It's mostly out of curiosity at this time.

When uT starts, it always logs IPV6 as installed. But sometimes it logs Teredo address, sometimes it doesn't.

[GTHK]

If this is at Windows startup, sometimes Windows doesn't get the Teredo address in time. I wish it would report finding it on the next check, but I think the current notifications will be removed later on .

[Apprentice]

No, not at Windows startup - at uT startup, usually a long time after Windows.

[GTHK]

Hmmmmmmmm... bad connection to Microsoft's server? Wouldn't be the first. When you notice it, you can try ipconfig /all and see if you even have an address. You can check Teredos error state with netsh interface ipv6 show teredo.

[Apprentice]

Thanks. Will check and post results here.

Here are the results:

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface

Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-00

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : fe80::ffff:ffff:fffd%5

Default Gateway . . . . . . . . . :

NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Automatic Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface

Physical Address. . . . . . . . . : C0-A8-01-64

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : fe80::5efe:192.168.1.100%2

Default Gateway . . . . . . . . . :

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Disabled

netsh interface ipv6 show teredo

Teredo Parameters

---------------------------------------------

Type : client

Server Name : default

Client Refresh Interval : default

Client Port : default

State : offline

Error : primary server address unreachable

Server unreachable... duh!

[reptile]

The same thing is happening to me, Teredo's IPv6 tunnel seems to go down randomly. Running "netsh int ipv6 renew" and waiting a minute or so seems to fix it when this happens, but it's really unreliable as is.

FWIW I am on Comcast using WinXP SP3.

[Switeck]

It wouldn't totally surprise me if ComCast is killing the Teredo connection.