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Re: Why is IPv6 a must?

2001-11-21 23:30:04

does the rendezvous location really have to be the "original topological
location" of the host or is that just how folks started thinking about it?

and given that the rendezvous location has to be somewhere in the network,
how can we get around the problem that that location might become unreachable no matter where it's located? I mean, you could replicate the information to multiple sites and use anycast to find a location, but would this fundamentally change the mobile IP protocol?

How would you do this such that you did not further aggravate route scaling problems? If you do it with mobile-ip and anycast, would that would require such mobile addresses having either additional IGP or (worse) BGP paths?

On the other hand, if you have the rendevous be a database that maps some sort of a name to an IP address you do not perturb the routing system and you impose the overhead on those who are mobile, and their agents. It requires a model without TTLs but initialization and active notification. Whether this can be done is questionable and a valid topic of research (a bunch of us have been questioning for a while ;-)

Eliot






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