Dave Thaler wrote: > > Antonio Querubin writes: > > If it is how about just defining mapped multicast addresses already? > [...] > > | 80 bits | 16 | 32 bits | > > +--------------------------------------+--------------------------+ > > |0000..............................0000|FFFF|IPv4 multicast group | > > +--------------------------------------+----+---------------------+ > > This has been discussed before, and the above format is illegal, since > all multicast addresses must begin with 0xFF, not 0x00. > > I think someone did once propose a format which was out of the legal > multicast space.
And one of the biggest issues we had with that proposal was that there was no easy way to map an IPv4 scoped multicast address into a corresponding IPv6 scoped multicast address. 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] --------------------------------------------------------------------
