Hello, > Excuse me, sorry, but are the other non-16bit addresses (48bit) ever > assigned by DHCP?
There's at least two options I know of for this: #1 Add another 6lowpan-nd specific extension to DHCPv6 to add a simple link-layer address option #2 Nodes could assign their own short addresses. Nodes power on and autoconfigure a IPv6 address based on the 64-bit MAC address. With this they then do the DHCP dance, and get another address. Nodes check if this address can be used to assign their own short address. Aka: the IPv6 address it assigns matches the prefix, the PAN-ID, etc. Thus nodes 'figure out' if a certain short address will make their IPv6 address compressible. Regards, -Colin -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Alexandru Petrescu Sent: December 16, 2009 9:14 PM To: [email protected] Cc: [email protected] Subject: Re: [6lowpan] Whiteboards Daniel Gavelle a écrit : > I agree with the recent proposal to remove the mandatory requirement for > a whiteboard and duplicate address detection. > > However, 16 bit 802.15.4 addresses are a very useful optimisation. > Assigning these in a standard way is important in the absence of a > whiteboard. One option may be to use DHCPv6. However, the DHCPv6 > packet sizes are quite large and so some sort of DHCPv6 message > compression would be useful. Extended LowPANs would also be useful in > some applications. > > If the whiteboard and DAD are removed, I would like the issues of 16 bit > address assignment and extended LowPANs Excuse me, sorry, but are the other non-16bit addresses (48bit) ever assigned by DHCP? I doubt IETF could spec a means to assign MAC addresses... Thanks, Alex to still be addressed by an RFC > within the IETF 6LowPAN group, rather than having several different non > interoperable implementations. > > _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan
