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To: "JINMEI Tatuya / ?$B?@L@C#:H?(B" <jinmei@isl.rdc.toshiba.co.jp>
Cc: Rob Austein <sra+dnsop@hactrn.net>, dnsop@cafax.se
From: kent@songbird.com
Date: Thu, 27 Mar 2003 08:03:44 -0800
Content-Disposition: inline
In-Reply-To: <y7vwuikq2np.wl@ocean.jinmei.org>; from jinmei@isl.rdc.toshiba.co.jp on Thu, Mar 27, 2003 at 11:56:10PM +0900
Mail-Followup-To: "JINMEI Tatuya / ?$B?@L@C#:H?(B" <jinmei@isl.rdc.toshiba.co.jp>,Rob Austein <sra+dnsop@hactrn.net>, dnsop@cafax.se
Sender: owner-dnsop@cafax.se
User-Agent: Mutt/1.2.5.1i
Subject: Re: What problem were we trying to solve again? (was Re: Radical Surgery proposal: stop doing reverse for IPv6.)

On Thu, Mar 27, 2003 at 11:56:10PM +0900, JINMEI Tatuya / ?$B?@L@C#:H?(B wrote:[...]
> For example, the address to name mapping for traceroute can be
> provided by ICMP node information messages (of course, it depends on
> whether intermediate routers support and allow the ICMP, and reply a
> useful node name.  But similar arguments apply to DNS reverse mapping
> as well.)

IPV4 reverse mapping is currently deployed, and therefore provides a
functioning operational/software model for IPV6 node identification. 
Any scenario involving deployment of a new mechanism necessarily creates
a substantial extra burden, in a number of areas. 

Kent
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