Re: (multi6) Ease of re-numbering

[Iljitsch van Beijnum <iljitsch@muada.com>]

On Mon, 29 Oct 2001, Eric Gauthier wrote:

> > Is there no way we can come up with a way where hosts can keep their IPv4
> > address and happily run IPv4, where the other 96 bits are "automagically"
> > added and removed by a border router? That way, I can forever go on using
> > 213.156.3.172, even if I have to renumber daily from
> > 3ffe:1234:x::213.156.3.172 to 3ffe:1234:y::213.156.3.172 and so on.

> My impression was that a system could request whatever it wanted to
> as the end 64bits of its address and that it 'usually' chose its
> MAC.  If that's the case, your system could chose 32-bits of zeros
> and then the 32bit combination that corresponds to your IP...  Then,
> the normal renumbering rules would apply?

What I want is for the host to use just the 32 bit IPv4 addresses. (The
host then wouldn't even have to run IPv6.) So 1.2.3.4 sends a packet to
5.6.7.8 and a border router would turn that into a packet from
3ffe:ab::1.2.3.4 to 3ffe:cd::5.6.7.8. This way, only the border routers
need to know the IPv6 prefixes and internal hosts can happily run IPv4 or
IPv6 with IPv4 addresses without ever having to renumber.