RE: The state of IPv6 multihoming development

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

On Sat, 26 Oct 2002, Tony Li wrote:

> |   No.  The open concern then becomes that of applications that carry
> |   addresses in the payload -- would border routers require a
> |   knowledge base
> |   of applications to translate a la IPv4 NAT?

> So we're going to institutionalize support for layering violations?
> This doesn't seem right.

Unless I'm mistaken nobody here has proposed a solution that has this
problem. If/when addresses are changed somewhere, they are either
changed back later, or the destination is aware of the relationship
between the old and new address. In other words: any address that an
application communicates to the other end remains valid. Reachable is
another question... Apps should consider using more than one address.