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Re: IETF Last Call conclusion for draft-ietf-6man-rfc2460bis-08

Robert Raszuk <robert@raszuk.net> Tue, 04 April 2017 13:22 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Tue, 04 Apr 2017 15:22:32 +0200
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Subject: Re: IETF Last Call conclusion for draft-ietf-6man-rfc2460bis-08
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Cc: Fernando Gont <fgont@si6networks.com>, "Leddy, John" <John_Leddy@comcast.com>, 6man WG <ipv6@ietf.org>, IETF Discussion <ietf@ietf.org>, "draft-ietf-6man-rfc2460bis.all@ietf.org" <draft-ietf-6man-rfc2460bis.all@ietf.org>
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Hi Brian,

> In any case if we see this entire thread the only technical concern with
> EH
> > insertion was MTU. And how that issue is solved when you do additional
> IPv6
> > header encap ?
>
> PMTUD applies to the path between source A (encapsulator) and destination B
> (decapsulator). If you decapsulate at B and the encapsulate again, PMTUD
> applies to the path between B (encapsulator) and C (decapsulator). They are
> completely independent; it's a new packet. PMTUD doesn't occur between A
> and C at all.
>


​Are you saying that it is "legal" to fragment IPv6 packet by a router at
the encapsulation point in the network ?

That would be news to me.

Many thx,
Robert.

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