[Bug 451] New: new config-Option: IPv4or6

[Pekka Savola]

On Wed, 4 Dec 2002, Dan Kaminsky wrote:
> Pekka Savola wrote:
> > I fail to see the real usefulness of this command, as manual configuration 
> > on a host-basis seems like a big chore to me .. much bigger than just 
> > trying v6 and using it if AAAA records are found.
> 
> What if the IPv6 network is being slow?

Remove it from DNS or use -4.
 
> What if IPv6 endpoints and IPv4 endpoints fall out of sync (i.e. 1.2.3.4 
> is not IPv6 1.2.3.4)?

See above.
 
> There's some pretty extensive ipv4/ipv6 transition nastiness to be dealt 
> with, as described here:
> 
> http://playground.iijlab.net/i-d/draft-itojun-ipv6-transition-abuse-01.txt
> 
> I'd lean toward providing support for avoiding such hassles.

There's another that may prove to be interesting reading especially 
considering your first point:

http://www.ietf.org/internet-drafts/draft-savola-v6ops-6bone-mess-01.txt

Also, "IPv6 transition architecture" and "getaddrinfo address ordering"  
discussion on IETF v6ops mailing list last month may be very interesting 
in that light.

-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords