Multicast Tunnels link:
Clicking this link takes you to the Multicast Tunnels page, where you can create, enable, and disable multicast tunnels and set parameters for them.
Destination field:
Shows the destination IP address of the multicast tunnel.
Threshold field:
Shows the minimum IP time to live (TTL) value.
Rate Limit (kb/sec) field:
Shows the bandwidth limit, in units of kilobits per second, for all multicast traffic forwarded along the tunnel.
Metric field:
Shows the cost associated with sending a datagram on the interface.
Local Address field:
Shows the IP address of the local interface that is the
multicast tunnel's source.