On Mon, 11 Mar 2002, Lilian Fernandes wrote: > I have a question about the IPV6_JOIN_GROUP socket option from > rfc2553bis-05. Is it intended that the user be able to use this socket > option to join IPv4 multicast groups as well? The user could do this by > specifying an IPv4-mapped IPv6 address for the IPv4 multicast address.
Unfortunately the RFCs don't specifically define an IPv4-mapped IPv6 equivalent for IPv4 multicast addresses. That section of the IPv6 address architecture RFC only pertains to mapping IPv4 unicast addresses. A suggestion was made last year to address this difference in behaviour at the basic sockets API level since the address architecture was pretty much fixed already. But that suggestion came a little too late and now it's been suggested that it be addressed instead in the advanced sockets API. -------------------------------------------------------------------- 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] --------------------------------------------------------------------
