RE: An alternative to 6to4 and teredo

["Jeroen Massar" <jeroen@unfix.org>]

Margaret Wasserman wrote:

> >many applications involve more than two parties, even if the 
> interconnections
> >between components of those applications are two-party 
> connections.  a >2
> >component app often needs to be able to provide referrals 
> from one component
> >to another - e.g. to say "if you need to access this 
> component, contact it at
> >address A port P".
> 
> I've been thinking about this a lot lately, and I wonder...  
> Why do these
> referrals need to be by IP address?  It would make more sense to
> refer another party to a DNS name and port number.  Then the 
> other party
> can do its own DNS look-up, and make its own address 
> selection decision.

Not every IP has a correct forward/reverse pair.
Especially with the /64 subnets and then multiple ones on the same
net, not everybody will be putting up reverse and forwards.
Thus one needs to remain at IP <-> IP level :(

Also some protocols expect that the remote is the same as the other
connection comes from for security reasons etc.

Greets,
 Jeroen