10. Updating RFC 8929

この文書は IPv6 Neighbor Discovery と関連する 6LoWPAN/RPL 仕様を更新し, ノードが近隣ルータへ IPv6 prefix を登録できるようにします. 重要なプロトコル詳細は RFC 原文の形で以下に保持します.

10.  Updating RFC 8929

   "IPv6 Backbone Router" [RFC8929] defines a proxy operation whereby a
   6LoWPAN Border Router (6LBR) may impersonate a 6LN when performing an
   address registration.  In that case, [RFC8505] messages are used as
   is, with one change that the SLLAO in the proxied NS(EARO) messages
   indicates the Registering Node (the 6LBR) as opposed to the
   Registered Node (the 6LN).  See Figure 5 of [RFC8929] for an example
   of proxy operation by the 6LBR, which generates an NS(EARO) upon
   receiving an EDAR message.

   This specification updates that proxy operation with the updates in
   [RFC9685] and defines the formats and content of the EARO, EDAR, and
   EDAC messages in order to support the P-Field and the signaling of
   prefixes.  The proxy MUST use the P-Field as received in the EDAR or
   NS(EARO) message to generate the proxied NS(EARO), and it MUST use
   the exact same prefix and prefix length as received in the case of a
   prefix registration.