Re: [BEHAVE] DNS64 Resolvers and Dual-Stack Hosts, draft-wing-behave-dns64-config-00

> -----Original Message-----
> From: Zhen Cao [mailto:caozhenpku@gmail.com] 
> Sent: Thursday, January 07, 2010 9:04 PM
> To: Dan Wing
> Cc: 3gv6; Behave WG
> Subject: Re: [BEHAVE] DNS64 Resolvers and Dual-Stack Hosts, 
> draft-wing-behave-dns64-config-00
> 
> Hi Dan, 
> 
> By specifying a new RR, draft-boucadair-behave-dns-a64-01 can 
> also solve the problem. 

It requires changing DNS all over the place, though, and not just in the
network that is operating the NAT64/DNS64 infrastructure.  I don't see how to
get that deployed.  There was a lengthy thread on BEHAVE about it, starting
approximately at
http://www.ietf.org/mail-archive/web/behave/current/msg07324.html

-d

> Thanks,
> Zhen
> 
> On Fri, Jan 8, 2010 at 6:26 AM, Dan Wing <dwing@cisco.com> wrote:
> 
> 
> 	draft-wing-behave-dns64-config-00 should be of interest 
> to both 3Gv6 and
> 	BEHAVE.  The draft is related to recent threads on both 
> mailing lists
> 	discussing a DNS64 recursive resolver being used by a 
> dual-stack host.
> 	
> 	Abstract:
> 	  Some networks are expected to support IPv4-only, 
> dual-stack, and
> 	  IPv6-only hosts at the same time.  Such networks also 
> want to IPv6/
> 	  IPv4 translation for the IPv6-only host so it can 
> access servers on
> 	  the IPv4 Internet.  On such a network, the 
> synthesized AAAA responses
> 	  from a DNS64 can cause traffic to be translated.  
> This document
> 	  describes two solutions to avoid that translation:  
> modifying default
> 	  address selection on the host, and using DHCP to 
> configure different
> 	  DNS recursive resolvers.
> 	
> 	http://tools.ietf.org/html/draft-wing-behave-dns64-config-00
> 	
> 	Comments welcome.
> 	
> 	-d
> 	
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> 