We have two networks which is connected to each other by leased line, one network is our data center and other is our Branch location. we have configured multicasting in dense mode on both the end over all the interfaces. we are able to ping from data center to Branch and vice versa , but when we trying send some multicast traffic we are unable send from data center to branch and vice versa. Can u guys tell me what will be the issue and how i can troubleshoot.