RE: IPv6 and Dynamic DNS

[Erik Nordmark <Erik.Nordmark@ENG.SUN.COM>]

Peter Ford wrote on 6 Aug:

> It sure would be nice if you could force some sort of "hard" addrconf so
> that servers on the network would know who is "on a wire", this would allow
> routers to do host based routing, build more accurate topology databases (a
> BIG request from customers), etc.

The only mechanism we have today is to set the flag in the router advertisement
which says "Use DHCP".

Of course, it wouldn't be hard to extend ND/addrconf which e.g. an
option of the semantics: "send an unsolicited neighbor advertisement every N
seconds to the all-routers multicast address".
This of course doesn't prevent malicious nodes from being silent, but it
would provide what you need.

Of course, I don't know how useful this would be.
Also, I don't see how it would help with dynamic DNS trust issues.

   Erik