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Re: [v6ops] draft-ietf-v6ops-icp-guidance WGLC

Mark ZZZ Smith <markzzzsmith@yahoo.com.au> Wed, 08 August 2012 09:14 UTC

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Date: Wed, 08 Aug 2012 02:14:04 -0700
From: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
To: "Fred Baker (fred)" <fred@cisco.com>
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Cc: "v6ops@ietf.org" <v6ops@ietf.org>, V6ops Chairs <v6ops-chairs@tools.ietf.org>, Ron Bonica <ron@bonica.org>
Subject: Re: [v6ops] draft-ietf-v6ops-icp-guidance WGLC
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Hi Fred,


----- Original Message -----
> From: Fred Baker (fred) <fred@cisco.com>
> To: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
> Cc: Gert Doering <gert@space.net>; "v6ops@ietf.org" <v6ops@ietf.org>; V6ops Chairs <v6ops-chairs@tools.ietf.org>; Ron Bonica <ron@bonica.org>
> Sent: Wednesday, 8 August 2012 7:07 AM
> Subject: Re: [v6ops] draft-ietf-v6ops-icp-guidance WGLC
> 
> 
> On Aug 7, 2012, at 1:31 PM, Mark ZZZ Smith wrote:
> 
>>  According to RFC6145, 
>> 
>>     This document describes stateful NAT64 translation, which allows
>>     IPv6-only clients to contact IPv4 servers using unicast UDP, TCP, or
>>     ICMP.  One or more public IPv4 addresses assigned to a NAT64
>>     translator are shared among several IPv6-only clients.  When stateful
>>     NAT64 is used in conjunction with DNS64, no changes are usually
>>     required in the IPv6 client or the IPv4 server.
>> 
>>  So NAT64 wasn't designed for a scenario where IPv4-only clients contact 
> IPv6 servers. 
> 
> 
> Your quote is from RFC 6146, and you are correct with regard to stateful NAT64. 
> 
> RFC 6145, which is stateless and uses an IPv6 address that contains an embedded 
> IPv4 address, is very much defined to enable bidirectional session initiation 
> between systems with the stated type of address.
> 
<snip>

Thanks for the references. To clarify, this ICP used Stateful NAT64.

Regards,
Mark.

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