Re: Thoughts on address selection

[Markku Savela <msa at moth.iki.fi>]

> On Nov 18, 2009, at 7:43 PM, Arifumi Matsumoto wrote:
> 
> > As I wrote in another e-mail, rather than giving over everything to  
> > hosts, I think, giving hints for selecting addresses should be  
> > reasonable, at least in some environments.
> 
> I would very much favor having an icmp message that the network can  
> return that says "pick an address in this prefix if possible". That is  
> a discussion we have had before.

I really hate "try, fail, retry" logic. As I said earlier, we should
change so that host will send to a *default* router only using prefixes
specifically advertised by that router.

Router should be advertising only prefixes, which wouldn't trigger the
"icmp".