PIM Multicast Spam Countering Method Using Blacklist in Rendezvous Point

Spam has been an annoying problem especially to Internet e-mail system nowadays. Many solutions have been deployed, but none have actually solved this problem. Various new applications based on the Internet are emerging very fast, and many of those applications are quickly being a good target for spammers. IP multicast provides flexibility in communication pattern with capability of sending same messages to multiple users. It can be used in various services like IPTV or conference communication. Since, multiple users can receive same message simultaneously, IP multicast is a great target for IP spammers. This paper propose spam countering method in IP multicast environment using PIM multicast protocol.