Re: I-D Action: draft-smith-6man-in-flight-eh-insertion-harmful-00.txt

Brian E Carpenter <brian.e.carpenter@gmail.com> Sun, 13 October 2019 00:36 UTC

Subject: Re: I-D Action: draft-smith-6man-in-flight-eh-insertion-harmful-00.txt
To: Nick Hilliard <nick@foobar.org>
Cc: Mark Smith <markzzzsmith@gmail.com>, 6man <ipv6@ietf.org>
References: <157059901123.30422.11220423219059958820@ietfa.amsl.com> <362b80f7-fedc-7227-2931-0006e6b81812@gmail.com> <f2548b48-2d8d-01f0-f05c-0027a5cdeb91@foobar.org>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <57b3a7bd-3dc3-d8be-0ac4-7218abdd94d8@gmail.com>
Date: Sun, 13 Oct 2019 13:36:31 +1300
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On 13-Oct-19 13:08, Nick Hilliard wrote:
> Brian E Carpenter wrote on 12/10/2019 23:15:
>> EH insertion for packets that traverse the open Internet is certainly harmful and violates RFC 8200
> 
> How does the packet know whether it's the open internet or a controlled 
> domain?

The packet is too dumb to know anything ;-). My question is how each node it traverses knows. Indeed, Mark's draft describes a scenario where the controlled domain argument breaks, because the exit node might not know that the packet had suffered EH insertion. The draft-voyer- scenario is not like that, because the affected IPv6 headers are created locally and identifiable as such.

   Brian

Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Brian E Carpenter
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Nick Hilliard
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Brian E Carpenter
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Joel M. Halpern
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Mark Smith
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Nick Hilliard
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Gyan Mishra
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Gyan Mishra
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Brian E Carpenter
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Nick Hilliard
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Mark Smith
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Brian E Carpenter
Re: Re: I-D Action: draft-smith-6man-in-flight-eh… li zhenqiang
Re: Re: I-D Action: draft-smith-6man-in-flight-eh… Mark Smith
Re: Re: I-D Action: draft-smith-6man-in-flight-eh… Mark Smith
Re: Re: I-D Action: draft-smith-6man-in-flight-eh… li zhenqiang
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Stewart Bryant
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Mark Smith
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Fernando Gont
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Mark Smith
Re: Re: I-D Action: draft-smith-6man-in-flight-eh… Gyan Mishra
Re: I-D Action: draft-smith-6man-in-flight-eh-ins… Fernando Gont