Rob Austein wrote: > > At Wed, 02 Oct 2002 17:35:37 -0400, Brian Haberman wrote: > > > > The subnet-scope is delineated in the same manner as the scopes > > 6,7,8,9... That is, a router maintains a scope zone id per interface. > > So, if I have a router that has interfaces 1,2,3, & 4 and the admin > > assigns a subnet-local scope zone id of 100 to interfaces 2 and 4, > > then 2 and 4 are in the same subnet scope zone and multicast packets > > received on one of those interfaces can only be sent to the other > > interface with the same scope zone id. > > The key phrase in your explanation is "the admin assigns". The > addr-arch doc says "admin-local scope is the smallest scope that must > be administratively configured". So which is it?
Ah, I missed that addition to the text. But, the handling from a forwarding and routing point of view is the same (via the settings of the scope zone id). As for the setting of the scope zone ids. Those can be derived by the prefix configuration on each interface. If the prefixes on interfaces 2 and 4 above are the same, the scope zone id will be the same. And I believe that Steve addressed the issue of unnumbered links in a different message. Regards, Brian -------------------------------------------------------------------- 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] --------------------------------------------------------------------
