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Fwd: BOUNCE email@example.com: Approval required:
milter-greylist-4.2.2 (nagasaki.bogus.com [220.127.116.11]); Thu, 23 Sep
2010 01:16:01 +0000 (UTC)
Subject: Re: [v4tov6transition] Any Experience with Using Behave's
Stateless NAT-PT for IMS-SIP VoIP Application...
Mime-Version: 1.0 (Apple Message framework v1081)
From: Fred Baker <firstname.lastname@example.org>
Date: Wed, 22 Sep 2010 08:59:09 -0700
Cc: "email@example.com" <firstname.lastname@example.org>,
To: "Mosley, Leonard" <email@example.com>
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On Sep 22, 2010, at 7:23 AM, Mosley, Leonard wrote:
> Greetings Fred et al, I had a couple of inquiries concerning use of =
the Behave WG NAT-PT algorithms:
> 1) I was wondering what vendors currently are implementing the =
Behave WG=92s NAT-PT algorithms?
To my knowledge, behave isn't supporting NAT-PT...
> 2) Has anyone had any experience testing or implementing the =
stateless algorithm for use cases involving IMS SIPv4 VoIP clients =
calling SIPv6 clients and vice versa. Such use cases assume an =
architecture where there is a co-existence period in the network =
consisting of both =93legacy=94 SIPv4 clients and =93newer=94 SIPv6 =
(dual-stack and/or v6-only) clients.=20
Xing Li can comment on whether SIP/IVI is in use in his network. I would =
expect that the biggest issue in SIP deployment is the use of native =
addressing in SDP, which is probably best handled by some form of =
gateway. This is of course true of any protocol that carries IP =
addresses in the application and expects them to be meaningful to a =
peer; SIP across an IPv4/IPv4 NAT similarly requires some form of proxy =
that can direct indicated traffic correctly.
> 3) I=92m curious about RTP performance under moderate to heavy =
call loads as well as NAT-PT interaction with IMS-ALG. If anyone can =
share at a high-level that would be great.
NAT-PT hasn't been all that wonderful. That's why it was deprecated...
> Len Mosley
> Time Warner Cable
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