1rdr nf0 192.168.6.2 port 111 -> 192.168.7.1 port 111 udp proxy rpcbu 2rdr nf0 192.168.6.2 port 111 -> 192.168.7.1 port 111 tcp proxy rpcbt 3map qfe0 192.168.6.0/24 -> 192.168.7.2/32 4