How to generate IPv6 RA without any prefixes?

[sthaug at nethelp.no]

> >> Oh I see. I haven't tried this case with FreeBSD configuring RA with
> >> default route info only. So, how your Juniper router coordinate your
> >> DHCPv6 server to inform the hosts or nodes where to get prefix info
> >> since then your router wasn't configured with pinfoflags options?
> >
> > The router sends RAs with the "managed" flag, in the RA header (not
> > connected to any specific prefix). This tells the clients that they
> > should attempt DHCPv6 configuration.
> >
> >> Or
> >> the hosts are just configured with DHCPv6 client informing directly
> >> the DHCPv6 server for IPv6 address info while its default route is
> >> obtainable via RA through SLAAC?
> >
> > The default route and the "managed" flag come from RA. The rest from
> > the DHCPv6 server.
> >
> > Some of us would *like* DHCPv6 to be able to work without RA - but that
> > is a different (religious) discussion.
> 
> Thanks for the explanation Steinar, this is clear to me now. So, as
> what other folks have suggested, I think you can proceed with issuing
> a PR to this.

http://www.freebsd.org/cgi/query-pr.cgi?pr=152458

Steinar Haug, Nethelp consulting, sthaug at nethelp.no