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From: "Michael H. Warfield" <mhw@wittsend.com>
To: Peter Bieringer <pb@bieringer.de>
Cc: mhw@wittsend.com, netdev@oss.sgi.com,
	Herbert Xu <herbert@gondor.apana.org.au>
Subject: Re: IPv4 tunneled over IPv6-IPsec?
Date: Mon, 28 Mar 2005 15:06:31 -0500	[thread overview]
Message-ID: <1112040391.17216.44.camel@localhost.localdomain> (raw)
In-Reply-To: <13B368C239630E8F2BA18AF3@[192.168.17.4]>

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Hey Peter!

On Sun, 2005-03-27 at 14:47 +0200, Peter Bieringer wrote:
> 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.

	You might want to check out the DSTM package here:

	<http://www.ipv6.rennes.enst-bretagne.fr/dstm/>

	That includes a tsp server as well as a 4over6 driver.  Jim Bound is
the author/editor of record for the IETF draft on DSTM.

	<http://www.ietf.org/internet-drafts/draft-bound-dstm-exp-02.txt>

	I've had it spun up on some Linux systems in the past for testing
purposes.  Unfortunately, it does not seem to be updated to build under
the 2.6 kernels.  :-(

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

> Regards,
> 	Peter

	Mike
-- 
 Michael H. Warfield    |  (770) 985-6132   |  mhw@WittsEnd.com  
  /\/\|=mhw=|\/\/       |  (678) 463-0932   |  http://www.wittsend.com/mhw/
  NIC whois:  MHW9      |  An optimist believes we live in the best of all
 PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of it!

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      reply	other threads:[~2005-03-28 20:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-26 20:22 IPv4 tunneled over IPv6-IPsec? Peter Bieringer
2005-03-27 10:05 ` [Openswan dev] " Herbert Xu
2005-03-27 12:47   ` Peter Bieringer
2005-03-28 20:06     ` Michael H. Warfield [this message]

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