Here is a new version of the exchange example to reflect the situation in nd-11. In the spec one-hop ND traffic uses link-locals (from RFC4861) and the SLLA in the NS should be the short address (6lowpan-nd). This should now be correct.
RS from joining device MAC src: IEEE IP src: LL64 SLLAO: IEEE MAC dst: Broadcast IP dst: All-routers Multicast RA from parent router MAC src: Short IP src: LL16 SLLAO: Short MAC dst: IEEE IP dst: LL64 ABRO, PIO, 6CO Initial NS from joining node MAC src: Short IP src: GP16 (tentative) SLLAO: Short MAC dst: Short IP dst: LL16 ARO: IEEE (Note: parent router stores no L2 state about the tentative address, carried in the SLLAO to the 6LBR and back) Initial NA from parent router MAC src: Short IP src: LL16 MAC dst: Short (Copied from the SLLAO of the NA from the 6LBR) IP dst: GP16 (tentative) ARO: IEEE, Success (after this point the LL64 isn't really used anymore) Refresh NS MAC src: Short IP src: GP16 SLLAO: Short MAC dst: Short IP dst: LL16 ARO: IEEE Refresh NA MAC src: Short IP src: LL16 MAC dst: Short IP dst: GP16 ARO: IEEE, Success On Jul 12, 2010, at 5:27 PM, Zach Shelby wrote: > RS from joining device > > MAC src: IEEE > IP src: LL64 > SLLAO: IEEE > MAC dst: Broadcast > IP dst: All-routers Multicast > > RA from parent router > > MAC src: Short > IP src: GP16 > SLLAO: Short > MAC dst: IEEE > IP dst: LL64 > > Initial NS from joining node > > MAC src: IEEE > IP src: GP16 (tentative) > SLLAO: IEEE > MAC dst: Short > IP dst: GP16 > > (Note: parent router stores no L2 state about the tentative address, carried > in the SLLAO to the 6LBR and back) > > Initial NA from parent router (success) > > MAC src: Short > IP src: GP16 > MAC dst: IEEE (Copied from the SLLAO of the NA from the 6LBR) > IP dst: GP16 (tentative) > > (after this point the LL64 isn't really used anymore) > > Refresh NS > > MAC src: Short > IP src: GP16 > SLLAO: Short > MAC dst: Short > IP dst: GP16 > > Refresh NA > > MAC src: Short > IP src: GP16 > MAC dst: Short > IP dst: GP16 -- Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan
