Dell S6100 Configuration Manual page 1637

Usage Information
Added an optional keyword "anylocal" to the tunnel source command. The anylocal argument can be used in place
of the ip address or interface, but only with the multipoint receive-only mode tunnels. The tunnel source
anylocal command allows the multipoint receive-only tunnel to decapsulate tunnel packets addressed to any
IPv4 or IPv6 (depending on the tunnel mode) address configured on the switch that is operationally Up.
Tunneling 1637