On Wed, 2002-11-06 at 12:23, Michel Py wrote: > Bob, > > > Bob Hinden wrote: > > Another router issue that gets talked around is should > > packets with site-local destination be forwarded to > > "default". Given that site-local addresses are not > > created without being configured, one approach could be > > to have a "black hole" route for FEC0::/10 preconfigured > > in all routers. > > There is some potential in this. > > Rationale: ambiguity is a fail-safe for routes that leak in the DFZ even > though they were not supposed to and for ISPs that don't filter them > even though they were supposed to. > > If we could add to this black hole a preconfigured prefix-list for each > peer that would deny FEC0::/10 ge 10 (1) that would likely be good > enough to let ambiguity go and we would make a step towards globally > unique site-locals. > > (1) I am thinking about something like the default deny at the end, > except that it would be at the beginning and would be effective even > though there is no prefix-list applied to the peer. Something that would > require a separate command and a confirmation to de-activate. Why would > one want site-locals in BGP anyway? >
Could it be argued that if there was a need for confederations in BGP to handle iBGP scaling, then there would a reason for site-locals to be carried by BGP, presuming a single instance of site-local addressing across the organisation ? > 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] --------------------------------------------------------------------
