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Re: [Int-area] Document shepherd comments on 'draft-ietf-intarea-gue-05'

Joe Touch <touch@strayalpha.com> Tue, 28 August 2018 15:24 UTC

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Date: Tue, 28 Aug 2018 08:24:10 -0700
From: Joe Touch <touch@strayalpha.com>
To: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>
Cc: Int-area@ietf.org
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Subject: Re: [Int-area] Document shepherd comments on 'draft-ietf-intarea-gue-05'
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Some comments below, hopefully constructive/additive... 

Joe

On 2018-08-24 12:34, Templin (US), Fred L wrote:

> Hello,
> 
> As document shepherd, I am required to perform a review. Please see below
> for initial comments, and respond on the list.
> 
> Fred
> 
> ---
> 
> ...
> 
> Section by Section comments:
> 
> ...
> 
> Section 5.4.1:
> Second paragraph, "set 94 for IPIP", I was under the impression that the common
> values for IPIP encapsulation are '4' for IPv4 and '41' for IPv6. I have not seen '94'
> appear elsewhere. Is this a common use? If not, would it be better to use '4' or '41'?

94 is defined here:  

   [IDM91a] Ioannidis, J., Duchamp, D., Maguire, G., "IP-based
            protocols for mobile internetworking", Proceedings of
            SIGCOMM '91, ACM, September 1991.

See RFC 1853 for a list of other "non-4" and "non-6" IP tunnels, but
these are not IP-in-IP -- that should cite RFC2003 (though, as noted in
draft-ietf-tunnels, there are some issues with the details in that RFC).

Joe

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