Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 192.168.0.0/16 anywhere ACCEPT all -- anywhere anywhere ACCEPT udp -- anywhere anywhere udp dpt:bootps INETIN all -- anywhere anywhere ACCEPT udp -- anywhere anywhere udp dpt:5060 ACCEPT udp -- anywhere anywhere udp dpt:4569 ACCEPT udp -- anywhere anywhere udp dpt:5036 ACCEPT udp -- anywhere anywhere udp dpts:10000:20000 ACCEPT tcp -- anywhere anywhere tcp dpt:5060