Keith Moore wrote: > > > > Expecting the network to be globally > > > > accessable and flat is not reality. > > > > > > the network has never been flat in reality, but part of the > > > purpose of IP has always been to provide the illusion of a > > > flat network. > > > > That would be the purpose of the illusionary session layer ... > > uh, no. that's what layer 3 is for. you have heard of routing?
Yes I have heard of routing. Its job is to deliver the packets between the current attachment points. There is no requirement for L3 to maintain a consistent flat perspective up to the app. That only happens because the app has the illusion of a stable session identifier that it derived from L3 information that was valid at one point in time. > ... > it's not the existence of v6 LL addresses that causes the > problems, it's the idea that they're suitable for general purpose use. > ... > > Refusing to allow them to be used only > > ensures that app doesn't work without explicit manual intervention. > > nobody has suggested refusing to allow them to be used - Please get the story straight here. In that last comment they can be used, but the prior one precludes them from being used. As I see it, in the absense of any other address, there is no choice so every app must have the option to use them. With other options available, the app should have the opportunity to decide which it wants to use based on it operational characteristics and goals. Either way the app needs a flag to indicate what it is dealing with. Tony -------------------------------------------------------------------- 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] --------------------------------------------------------------------
