Hi Anders, On Oct 28, 2010, at 11:34 AM, Anders Brandt wrote:
>>> Is the NS+ARO message sent with multicast when I do registration the > first time? > > You say: >> Well, we don't need to resolve an address, so it should be unicast. > > This is under the assumption that I know where to register the very > first time. > Is it obvious that I know that? (how?) You discover the possible routers by performing an RS/RA exchange. The RS is typically sent to the IPv6 all-routers multicast address (see Section 5.3). However, if e.g. your L2 technology already gives you a hint about where a routers is (e.g. the coordinator), the RS could then be sent unicast. I am not sure if that is the case with z-wave. After this you perform NS+ARO registration unicast with one or more routers (see Section 5.5). Also see the example host bootstrap sequence in Section 10.2. Hope that helps, Zach -- 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
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