Pekka / Margaret My $0.02 about the hash/random/collision issue: It's a non-issue.
The prefix generation happens only one time for the site. Collisions would not be detected until two sites merge or establish a VPN connection. The site gets its GUPI /48 prefix once, then the network administrator configures all routers within the site with subnets that fit in that prefix. This could be automated, but the fact of the matter is that there needs to be a router somewhere that seeds this prefix. If what you are talking about is automatic subnet number generation, this would be a zeroconf issue. Besides the fact that making site-locals too easy is bad, I don't see why obtaining the prefix should be generated by a router. It is clear that the first thing the network administrator would do is to write down the /48 s/he will be using, and would be the one requesting the prefix in the first place. Also, whatever the random/hash algorithm is chosen and published, it also is clear that the first thing that the network administrator would do is to go to the web to find if someone has already written an applet that would do the job. All we need is a few web sites in the world that provide a good random number generator. 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] --------------------------------------------------------------------
