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Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-xpf-00.txt

Robert Edmonds <edmonds@mycre.ws> Fri, 06 January 2017 17:28 UTC

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Date: Fri, 06 Jan 2017 12:28:22 -0500
From: Robert Edmonds <edmonds@mycre.ws>
To: Ray Bellis <ray@isc.org>
Message-ID: <20170106172822.cr3zbf22efhm2wga@mycre.ws>
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Subject: Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-xpf-00.txt
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Ray Bellis wrote:
> Spurred on by Warren's announcement of a Docker image that uses NGINX to
> proxy TLS connections into DNS servers that don't natively support TLS,
> I've just written up this short draft describing an EDNS0 option that
> allows smart proxies to tell the backend server what the original client
> IP address was.
> 
> The master doc is at https://github.com/raybellis/draft-bellis-dnsop-xpf

Hi, Ray:

The values used by the "IP Version" field should be specified:

   IP Version: The IP protocol version number used by the client.

Since the field is 4 bits long I would guess this field happens to be
the same as the version field in the IP header [0], maybe with the
restriction that the field can only take on the values 4 and 6?

[0] http://www.iana.org/assignments/version-numbers/version-numbers.xhtml

-- 
Robert Edmonds

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