Re: [v6ops] RFC4861 question - short prefixes in PIOs

Philip Homburg <pch-v6ops-9@u-1.phicoh.com> Fri, 28 June 2019 16:32 UTC

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To: v6ops@ietf.org
Cc: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: 6man <6man@ietf.org>
Subject: Re: [v6ops] RFC4861 question - short prefixes in PIOs
From: Philip Homburg <pch-v6ops-9@u-1.phicoh.com>
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Date: Fri, 28 Jun 2019 18:32:14 +0200
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>Hairpin'ing all traffic through the advertising router when L=0 seems like
>the only general solution.  But, I can imagine many situations where if a
>Neighbour Cache entry somehow existed, then it could be used.

Note that the router may send redirects. So in theory it is only the
first packet to a neighbor that needs to go through the router.