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Re: [Int-area] I-D Action: draft-herbert-ipv4-udpencap-eh-00.txt

Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 05 March 2019 01:37 UTC

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To: int-area@ietf.org, Tom Herbert <tom@herbertland.com>
References: <155129875566.13940.2872169346710477964@ietfa.amsl.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <946a3fea-79e7-893c-3b2c-f54fa634339b@gmail.com>
Date: Tue, 05 Mar 2019 14:37:09 +1300
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Subject: Re: [Int-area] I-D Action: draft-herbert-ipv4-udpencap-eh-00.txt
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Hi,

This is an interesting draft, but I must say I have serious doubts about
the IETF working on any significant update to IPv4 at the IP header level,
or of any such updates ever making it into the operational network.

On the other hand, I think the idea of a UDP encapsulation of extension
headers is very interesting. I'm not sure I understand all the implications
yet, and I'm not sure why the format can't be defined simply by a normative
reference to RFC8200. The idea of having a duplicate format definition
is a bit scary.

Regards
   Brian Carpenter

On 28-Feb-19 09:19, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> 
> 
>         Title           : IPv4 Extension Headers and UDP Encapsulated Extension Headers
>         Author          : Tom Herbert
> 	Filename        : draft-herbert-ipv4-udpencap-eh-00.txt
> 	Pages           : 27
> 	Date            : 2019-02-27
> 
> Abstract:
>    This specification defines extension headers for IPv4 and a method to
>    encapsulate extension headers in UDP to facilitate transmission over
>    the Internet. The goal is to provide a uniform and feasible method of
>    extensibility that is shared between IPv4 and IPv6.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-herbert-ipv4-udpencap-eh/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-herbert-ipv4-udpencap-eh-00
> https://datatracker.ietf.org/doc/html/draft-herbert-ipv4-udpencap-eh-00
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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>

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