Re: dual stack & IPv6 on by default

[Erik Nordmark <Erik.Nordmark@Sun.COM>]

> What is the benefit of doing so versus doing the change in ndpd?

NDP working as designed in RFC 2461.

> In that case, it make sense to maintain the local subnet route
> but remove the default route. Destination on the local subnet will
> still be reachable, other further destination won't and we will not
> try them. This can be done in ndpd.

In another message I think I pointed out that we want NDP
to work when there are no prefixes advertised with the O-bit set
(even though the prefixes are on-link).
For instance, this might be part of a potential solution to better deal with 
hidden terminal problems in wireless networks.

  Erik