[ds6] resources for configuring isatap tunnel on linux

[michael at michaelshiloh.com]

Thank you Peter, this is exactly what I needed.

I have a further question. I understand that ISATAP uses UDP over IPv4, while
6to4 encapsulates an IPv6 packet within a TCP IPv4 packet with protocol=41.

However, I am curious about the packet structure of the ISATAP connection,
especially the initial communication with the server. I have ready much about
ISATAP, but usually they talk about how it works and how to configure it, and
now what the packets look like.

Where can I find that information?

Sincerely,
Michael



On Sun, 22 Oct 2006, Peter Bieringer wrote:

> Hi Michael,
>
> michael at michaelshiloh.com schrieb:
>> Hello list,
>>
>> I have a need for configuring an ISATAP tunnel between two computers on a
>> local network. This isn't a practical application - it's for testing.
>>
>> I'm not finding much recent information about ISATAP in Linux, so my first
>> question is, does Linux support ISATAP?
>
> ISATAP should be supported by usagi-extension for the Linux kernel.
>
>> My second question is this: I have configured a tunnel between two Linux
>> computers.  Ifconfig shows the encapsulation as "IPv6-in-IPv4". How can
>> I tell
>> what kind of 6 in 4 encapsulation this is?
>
> It is plain IPv6-in-IPv4.
>
> IPv4-Header (transport proto=41) | IPv6-Header | IPv6-Payload.
>
>> For all I know it already is
>> ISATAP.
>
> No.
>
>> Perhaps you will tell me that the difference between ISATAP and the other
>> (6over4?)
>
> See here for more details:
>
> http://www.csc.fi/~psavola/residential.html
> http://www.join.uni-muenster.de/Dokumente/Howtos/Howto_ISATAP.php?lang=en
>
> Hope this helps,
> 	Peter
> -- 
> Dr. Peter Bieringer                     http://www.bieringer.de/pb/
> GPG/PGP Key 0x958F422D                       mailto:pb at bieringer.de
> Deep Space 6 Co-Founder and Core Member  http://www.deepspace6.net/
>