In message <c5e8c3ca-ba31-4af7-abb2-729e8629b...@apple.com> james woodyatt writes: > > On Oct 24, 2011, at 1:24 AM, Ray Bellis wrote: > > > > Will those arguing for ND Proxy please stand up and be counted? > > I have long complained that certain WPAN physical layers should be > prepared to attach to home networks, either by application layer > gateways on bastion hosts, or by dedicated ND/RD proxy devices, rather > than by demanding that every residential network deploy a standard > zero configuration prefix delegation and routing protocol to interface > to these peculiar WPAN networks. > > I know I'm in the minority on this. I don't think I can point to > anyone who agrees with me. Still, I should be counted. > > -- > james woodyatt <j...@apple.com> > member of technical staff, core os networking
I'm not sure what you are advocating. (Except having read ahead I know whatever it is Dave Thaler agrees with you). It seems to me like you are advocating treatment of WPAN as a special case stub with very limited capability appropriate only for a stub. Is it possible for a WPAN-only connected device to have more than one reachable device which could provide connectivity to a wired (or WiFi wireless) network and eventual connectivity to a controlling host? Is it also possible that a mesh of WPAN devices could exist? If so, then WPAN is no longer a special case stub, it is mearly a low power device with limited radio coverage and/or limited bandwidth. For example, a potential application of WPAN is home security. With routing each window or door or motion sensor need not be within reach of the control unit, just within reach of another window or door or sensor. This would be a mesh application in the home. The bluetooth limitation where the headset has to be near the phone or computer need not constrain what WPAN is used for in the future. The effective range can be extended as long as the device is near *something* that does WPAN and the something has other connectivity or is part of a mesh that has other connectivity. I did mention that devices need to be "bonded" to each other somehow. These WPAN applications are a case where this is important. The more the range of the WPAN is extended, the more you wouldn't want it to be too easy to spoof the home alarm system or have anything connect to a given phone or headset. Of course, limited range is no excuse for the situation with bluetooth headsets in airports where everything bonds with everything else because they all use a manufacturer's default. Curtis _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
