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Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)

Fernando Gont <fgont@si6networks.com> Thu, 05 September 2019 14:35 UTC

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To: Robert Raszuk <rraszuk@gmail.com>
Cc: Ole Troan <otroan@employees.org>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>, Suresh Krishnan <suresh.krishnan@gmail.com>
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From: Fernando Gont <fgont@si6networks.com>
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Date: Thu, 05 Sep 2019 17:35:19 +0300
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Subject: Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)
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On 5/9/19 17:28, Robert Raszuk wrote:
>  
> 
>     3) Now there's at least one I-D in spring that ignores RFC8200, and
>     proposes EH-insertion as if it was allowed, essentially circumventing
>     RFC8200, and IETF consensus.
> 
> 
> Incorrect. RFC8200 makes it black on white clear that insertion,
> deletion and mangling is allowed in IPv6 if destination is yourself in
> the packet's IPv6 outer header.

You only get to create EHs if you are sourcing the packets. Period.

Either you are sourcing packets -- and hence you are not doing insertion
--, or you are not sourcing the packets, and hence are doing insertion.

And EH insertion is prohibited by RFC8200.


-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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