Re: RFC 2893-style automatic tunneling

[Alain Durand <Alain.Durand@Sun.COM>]

The answer is in draft-ietf-v6ops-mech-v2-00.txt:

  Types of IPv6 Addresses

       IPv4-compatible IPv6 address:

               An IPv6 address bearing the high-order 96-bit prefix
               0:0:0:0:0:0, and an IPv4 address in the low-order 32-
               bits.  IPv4-compatible addresses are no longer used by
               this specification, thus this definition is preserved in
               the specification merely to clarify their non-use.


   - Alain.

Fred Templin wrote:

> There was no answer to my question on RFC 2893-style automatic tunneling,
> so I take this as a possible indication that no one is still using 
> this mechanism.
>
> Should we move to deprecate, then? If so, what form should the 
> deprecation take?
>
> Thanks - Fred
> ftemplin@iprg.nokia.com
>
> Fred Templin wrote:
>
> > Is RFC 2893-style automatic tunneling (i.e., with IPv4-compatible 
> > IPv6 addresses)
> > used in any active deployments? It seems to me that the functionality 
> > is obsoleted
> > by newer automatic tunneling mechanisms (e.g., 6to4, isatap, etc.) 
> > but I'd like to
> > hear from those with more current operational experience.
> >
> > Thanks  - Fred
> > ftemplin@iprg.nokia.com