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Re: [ietf-privacy] [Int-area] NAT Reveal / Host Identifiers

Brian E Carpenter <brian.e.carpenter@gmail.com> Mon, 09 June 2014 20:11 UTC

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Date: Tue, 10 Jun 2014 08:10:49 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: Ted Lemon <ted.lemon@nominum.com>
References: <E87B771635882B4BA20096B589152EF628724B2C@eusaamb107.ericsson.se> <539016BE.3070008@gmx.net> <53906711.5070406@cs.tcd.ie> <5390CEC9.3000005@isi.edu> <5D2CC7D6-D9E1-49A8-818C-5FB33DC283C0@cisco.com> <5393119F.6050805@cs.tcd.ie> <5395E195.4080007@cisco.com> <C920E9AB-A1F5-4BEB-9573-299D43596367@nominum.com>
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Subject: Re: [ietf-privacy] [Int-area] NAT Reveal / Host Identifiers
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On 10/06/2014 04:43, Ted Lemon wrote:
> On Jun 9, 2014, at 12:32 PM, Eliot Lear <lear@cisco.com> wrote:
>> But does adding a header solve the problem?  Not unless it is signed AND I believe the signature.  And then I had better be willing to spend the processing time to sort out your good customers from your bad customers.  I might do that if you're at a very big mail service provider, in which case I probably get very little spam, anyway.  I probably won't do that if you're Joe's small time ISP, unless there is some scaling feature not yet deployed today.
> 
> Bingo.

So, there are some more components of the threat analysis and the solution
requirements. That's good, but I thought we were discussing whether
to document the use cases.

   Brian

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