On Tue, 16 Mar 2004, Erik Nordmark wrote:
> The problem is worse with transition mechanisms, especially the ones
> which traverse NATs, but the situation may improve as soon as we can
> get rid of them. In any case, such mechanisms can provide a stable
> as long as they can keep the NAT/IP mappings stable -- which is, for a
> properly designed application, maybe sufficient.
I guess I don't understand what "such mechanisms" refer to above.
I don't know if mechanisms like Teredo can provide a stable IPv6 address
when the nat mappings change, but doing TB/UDP for nat traversal should
be able to provide stable IP addresses/prefixes in this case.
The point is to keep the NAT (etc.) mappings open as long as possible
so that they don't change -- and if they change, that'd be due to ISP
trying to enforce the user to a specific policy (e.g., changing v4
addesses on the fly) -- and I'm not sure if it's worth trying to
outsmart ISPs. Stupidity always wins, with the customer in even a
bigger mess in the end.. :-/