@param instance - optional unique custom device instance, else ~0.
@param src_address - Source IP address
@param dst_address - Destination IP address, can be multicast
@param mcast_sw_if_index - Interface for multicast destination
@param encap_vrf_id - Encap route table FIB index
@param instance - optional unique custom device instance, else ~0.
@param src_address - Source IP address
@param dst_address - Destination IP address, can be multicast
@param mcast_sw_if_index - Interface for multicast destination
@param encap_vrf_id - Encap route table FIB index