I some doubts about Multicasting :
1.In case of RP defined in shared tree. How terms are used for Multicast sources and multicast users related to --
Who joins/register at RP. what is the difference between Join and register from Multicast-source and the end user point.
2. When a multicast stream packet is sent to RP by source server what is the IP address source and dest of such packet?
3. When a packet is forwared down to user by RP what is the IP address of such packet so that it gets routed to the last router where users are connected. ( in my opinion dest IP = Multicast-group_IP_224.1.1 so that it can be delivered to the actual end user systems ).
3. routers in between the RP and the end uses do they need to be member of the group or they can just accept the multicast packets for any group and forward it to other interface or more that one interfaces as a next hop towards user?
Any explanation please share.
Thanks in advance