Tunnel adapters

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Tunnel adapters

Post by Solucian on Mon Aug 11, 2014 9:12 am
([msg=82739]see Tunnel adapters[/msg])

(I hope this is posted right...)
Recently I used the command "ipconfig /all" in cmd, and it gave me a loooong list of tunnel adapters. For example:

Tunnel adapter Local Area Connection* 50:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #42
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

I've been searching how to delete these and I found these solutions:
- Disabling IPv6
- Deleting them with Device Manager

Now maybe someone can help me understand why this is happening, and whether it's safe to disable IPv6/deleting the tunnel adapters?
Thanks
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Re: Tunnel adapters

Post by akorshikai on Mon Aug 11, 2014 12:49 pm
([msg=82740]see Re: Tunnel adapters[/msg])

Why do you want to delete these?
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Re: Tunnel adapters

Post by Solucian on Mon Aug 11, 2014 1:11 pm
([msg=82742]see Re: Tunnel adapters[/msg])

akorshikai wrote:Why do you want to delete these?


Apparently when they keep stacking they will make it slower to load internet etc... At least that's what I read.
And, they stop me from seeing the data I want to see from ipconfig since it overloads the cmd.
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Re: Tunnel adapters

Post by cyberdrain on Mon Aug 11, 2014 6:37 pm
([msg=82750]see Re: Tunnel adapters[/msg])

How did you even get that many tunnel adapters?! You sure you're not running some kind of zombie system?
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Re: Tunnel adapters

Post by Solucian on Tue Aug 12, 2014 8:12 am
([msg=82759]see Re: Tunnel adapters[/msg])

cyberdrain wrote:How did you even get that many tunnel adapters?! You sure you're not running some kind of zombie system?


I've done some research on internet and there are quite alot of people with this problem! Note that these are 6to4 adapters, so it would be a problem with IPv6 interfering with IPv4 (I guess).
Now my question is whether it's safe to stop using IPv6 or to delete all these adapters...

P.s. Just to be sure, how do you check whether you're running a "zombie" system? Pretty sure I don't have any malware on my pc.
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Re: Tunnel adapters

Post by cyberdrain on Wed Aug 13, 2014 7:23 pm
([msg=82786]see Re: Tunnel adapters[/msg])

Solucian wrote:Pretty sure I don't have any malware on my pc.

That's not for me to judge, but no malware pretty much means no zombie. Is there some program that creates those adapters every time it's started?

IPv6to4 adapters are used to connect to IPv6 networks over a IP version 4 network. Most home systems operate on 192.168.x.x networks, while there already are ISPs migrating to IPv6. I only know how Teredo operates, but I don't know if those adapters work the same way or even if they are Teredo adapters.

To 'translate' data between IPv4 and IPv6 networks, the packets with IPv6 information can be encapsulated in IPv4 packets, the IPv4 packets are unencapsulated and the IPv6 information is sent through the IPv6 network. Maybe a certain program needs this functionality and creates a new adapter for it each time.

Either way, I think it's safe to remove all but one of them without losing functionality or remove all of them to find which offending program does not connect any more if you can't find out by running one application at a time to see which one creates the adapters.
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Re: Tunnel adapters

Post by Solucian on Thu Aug 14, 2014 7:54 am
([msg=82803]see Re: Tunnel adapters[/msg])

Thanks for the info cyberdrain.

I managed to delete them automatically with the devcon tool: https://www.ryanvictory.com/posts/autom ... n-windows/
I'll be checking frequently whether or not they start stacking again.
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Re: Tunnel adapters

Post by cyberdrain on Thu Aug 14, 2014 2:17 pm
([msg=82810]see Re: Tunnel adapters[/msg])

Alright, glad that's sorted then :)
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