Michel, There is now debate if sensors should even have IP addresses and if IP is even needed. Clearly the Gateway sensors will need IP but then that should not be SL but global in the sense of global for the gateways communications. And most sensors are dealing with speeds across the plane of physics where IP stacks would be a bottleneck as we know them.
/jim [Have you ever seen the rain coming down on a sunny day] > -----Original Message----- > From: Michel Py [mailto:michel@;arneill-py.sacramento.ca.us] > Sent: Monday, October 28, 2002 5:04 PM > To: Margaret Wasserman; [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: RE: Limiting the Use of Site-Local > > > > Margaret Wasserman wrote: > > I've spent much of the last 7+ years working on IPv6 > > stacks for embedded systems, and they have all > > supported global addressing. > > The issue is not the capability of the devices to support > global addressing, but the desire of the network designer to > configure a set of devices that specifically don't have > access to the public address space. > > There are some military applications where devices have no > business talking to the outside world. Control devices or > sensors on a water distribution system or a power grid are > another good example. These devices have no business > whatsoever accessing the public internet, and it might be a > requirement that the devices themselves have support for > public addresses removed. > > Michel. > > > -------------------------------------------------------------------- > IETF IPng Working Group Mailing List > IPng Home Page: http://playground.sun.com/ipng > FTP archive: ftp://playground.sun.com/pub/ipng > Direct all administrative requests to [EMAIL PROTECTED] > -------------------------------------------------------------------- > -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
