Re: IPv4 tunneled over IPv6-IPsec?

[Peter Bieringer <pb@bieringer.de>]

Hi Herbert,

thank you for quick reply.

--On Sonntag, 27. März 2005 20:05 +1000 Herbert Xu 
<herbert@gondor.apana.org.au> wrote:

> Peter Bieringer <pb@bieringer.de> wrote:
>>
>> I retry to play tunneling IPv4 over IPv6-IPsec. Afair it is still not
>> working (support is missing in 2.6.x kernel), but for startup, I have
>> already a patch for ipsec.conf parsing (pluto already has an option to
>> do  this):
>
> The native IPsec stack doesn't support IPv4 over IPv6 or IPv6 over
> IPv4 SAs.  It won't be able to do so unless major surgery is done
> to the IPsec and IP stack.

Hmm, looks like more a long term issue :-(

So another question: what is the status of tunneling IPv4 over IPv6 without 
IPsec e.g. using GRE or special native tunneling? Similar issue? I digged a 
little bit around in GRE code and found some IPv6 references but no hints 
whether it can be used for that also.


BTW: the reason why I'm looking for such support is the need to connect 
some "legacy" IPv4 islands over IPv6.

Regards,
	Peter
-- 
Dr. Peter Bieringer                     http://www.bieringer.de/pb/
GPG/PGP Key 0x958F422D               mailto: pb at bieringer dot de
Deep Space 6 Co-Founder and Core Member  http://www.deepspace6.net/