At Wed, 15 Oct 2008 08:51:05 -0700,
"David W. Hankins" <[EMAIL PROTECTED]> wrote:

> > Correct, and that is the motivation for
> > draft-ietf-6man-ipv6-subnet-model-02.txt. See Section 3, for example.
> 
> That draft completely misses the original point.  This isn't a
> question of whether "ifconfig inet6 2001:db8::1/64" 'should be
> permissible' so far as the IETF is concerned.  This is a question
> of what the failure model should be when DHCPv6 succeeds but the
> link's router(s) are unavailable.

(It's questionable to me whether such a situation is practically so
useful that it warrants, e.g, introducing a new DHCPv6 option, but
aside from that point,)

In this case, the DHCPv6 server (or a relay, which would also rely on
a router and wouldn't work in this situation anyway) can send out an
RA with the router lifetime being 0 and with a prefix information
option.  The server could actually keep sending such minimum RA,
whether or not other routers are active.

If the possible alternative were to introduce a new DHCPv6 option that
includes this information, we should be able to assume the server (as
a node) is configured with that information, so it's just a matter of
which function is implemented in that node.

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.
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