> We haven't really specified the source address selection like this for > IPv4 either, I believe. Have I missed something?
That wasn't what I said. I said that IETF specifications don't go into details on how to cache things, whether it is for "routing" or "source address selection". I suspect IPv4 implementations which allow more than one IP address per interface have some mechanism by which the source IP address is selected, since it can't just be the single IP address assigned to the outgoing interface. > Routing table lookup is very simple compared to this I think. Conceptually simple, yes. Making it perform, combining the routing table with the arp/nd cache for performance, etc makes it more complex. Source address selection is also conceptually simple. And making it perform well makes life more complex. Erik -------------------------------------------------------------------- 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] --------------------------------------------------------------------
