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Re: [shim6] IPv6 multihoming
On Mon, 25 Jan 2010, Vlad Ion wrote:
3. Just allow everybody to use their IPv4 address as PI IPv6 address. I
see no problem with that. It even makes it a lot easier for everyone to
transition their existing space to IPv6.
We do *not* want 300k (or more) routes in IPv6 DFZ. This is a really bad
idea.
4. Everybody should accept /48 in IPv6 routing just because there's a clear
need to have multi-homing and you can't get around it. A simple procedure to
reduce, in time, the size of the /48 classes that are announced is for
people to slowly give back their v4 space to the RIRs as v6 expansion gains
momentum and slowly dedicate v4 and their 2002:: counterparts to
multi-homing only.
This will drive DFZ route growth even more.
I agree, 6to4 is a good solution, but the problem remains with the slow
deployment rate of IPv6. The problems IPv6 has with multihoming were the
key factor in all the deployment projects I saw that gave up eventually
on IPv6 be it in telco or enterprise scenarios.
6RD is a better solution and doesn't drive IPv6 DFZ route growth.
--
Mikael Abrahamsson email: swmike@swm.pp.se