I would like to test IGMP and multicast address. Could you please show me some working example to learn it in better way please. Many thanks!
as per http://en.wikipedia.org/wiki/Internet_Group_Management_Protocol
The Linux operating system supports IGMP. The Linux kernel at the core of the operating system only implements IGMP as host side, not router side, however a daemon such as mrouted can be used to act as a IGMP Linux router. There are also entire routing suites (such as XORP), which turn an ordinary computer into a full-fledged multicast router.