... help protect your network from potential attacks from across the Internet.The STA-504W also supports TR-069 which automatically updates ... network, step by step Administer and Upgrade the Router Remotely over the InternetPackage1,54M Wireless ADSL2+ Modem Router STA-504W2,One ... NAPT, DNS, DDNS, DHCP Server UPnP, Virtual Server, DMZ SIP, H323 ALG Wireless Features Complies with IEEE 802.11g, IEEE802.11b ...