Re: identity persistence and comparison issues

On 28-jun-04, at 14:45, Erik Nordmark wrote:

> And if the long-lived ID is one of the locators we can provide 
> compatbility
> for unmodified applications which do referrals and callbacks.

We should really talk to some apps people to figure out how important 
this is. It's entirely trivial to shoot yourself in the foot today with 
NAT or multiple addresses anyway, and then there is dual stack. How are 
referrals going to work when a future participant in the communication 
may be limited to one IP version, which happens to be the other one 
than the one used by current participants?

It may very well be that apps and protocols need to be changed anyway 
in order to work with IPv6, or IPv4+IPv6.