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Re: [v6ops] new draft: draft-cui-v6ops-lte-lw4over6

Mikael Abrahamsson <swmike@swm.pp.se> Fri, 14 February 2014 07:21 UTC

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Date: Fri, 14 Feb 2014 08:21:46 +0100
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Qi Sun <sunqi.csnet.thu@gmail.com>
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Cc: draft-cui-v6ops-lte-lw4over6@tools.ietf.org, v6ops@ietf.org
Subject: Re: [v6ops] new draft: draft-cui-v6ops-lte-lw4over6
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On Fri, 14 Feb 2014, Qi Sun wrote:

> [Qi] The eNodeB could play the role of the "gateway" for the UEs, i.e. 
> allocating private IPv4 addresses to the UEs and do the private-public 
> IPv4 translation within a restricted port range.

This is a fundamental change of the role of the eNodeB. You can't make 
that change in the IETF, you need to go to 3GPP to do this.

I imagine this has huge implications to how the control plane is handled, 
because now the eNodeB needs to intercept control plane messages to/from 
the UE to fake the bearer type of the GTP tunnel etc. Also, when doing 
handover, this information needs to follow.

So while I am all for changing how LTE works to have things more 
distributed, I don't see how this way would work in the manner described.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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