Multicast Addressing
• SSM - draft-ietf-ssm-arch-*.txt
• 232/8 – IANA assigned
• One-to-many ONLY (no shared trees)
• Guaranties ONE source on any delivery tree
• Content security (no ‘Captain Midnight’)
• Reduced protocol dependance – more later..
• Solves address allocation issues for interdomain one-to many
• ~tree address is 64 bits – S,G
• Host must learn of source address out-of-band (web page)
• Requires host-to-router source AND group request
• IGMPv3 include-source list
• Hard-coded behavior in 232/8 in most router implementations
• draft-ietf-mboned-ssm232-*.txt
• Configurable to expand range