RE: W.G. Last Call on "Default Address Selection for IPv6"

[Alain Durand]

I have a comment on the "last resort" rule, that say, everything being equal,
perform longest prefix match an all bits from 1 to 128.

I would like to suggest to limit the match to the first 64 bits.

The danger of doing match on all the bits is to have unpredictable behavior
and difficult to diagnose problem.

Let say that you have to hosts A & B on the same IPv6 subnet, and both host
have another direct connection (e.g. serial link or another ethernet link
at a lower speed) for back-up
Let say that all addresses have global

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