Re: shim6 @ NANOG (forwarded note from John Payne) (fwd)

[Kurt Erik Lindqvist <kurtis@kurtis.pp.se>]

On 2 mar 2006, at 09.13, Mikael Abrahamsson wrote:

> On Wed, 1 Mar 2006, Iljitsch van Beijnum wrote:
>
> > This is not what I think of when I say "multihoming". I don't see  
> > an easy way to do this with shim6 (there may be a non-easy way,  
> > though) so maybe hosting companies that are big enough to do  
> > peering will need to continue to do this as in IPv4.
>
> Couldn't this be implemented into the resolving DNS, in that it  
> could include priority information into the DNS response sent to  
> the host that does the initial connect? Or it could be done via  
> reverse-DNS (in the case where the "called" party needs to know  
> which IP to send to when there are several to choose from)?

this is pretty much SRV records.

> Perhaps one state in the shim6 initiation could be to do reverse- 
> lookup and via some record there gain knowledge about which IP  
> should be prioritized? This means that routingpolicy needs to be  
> somehow implemented into the DNS server, which would require new  
> code there as well.

Then you need secure binding beetween forward and reverse DNS. Which  
just isn't there.

- kurtis -