6.1.1 WAN Connection ............................................................................ 77
6.1.2 Advanced .................................................................................... 78
6.1.3 Fax............................................................................................ 80
6.1.4 SIP ............................................................................................ 82
6.1.5 SIP Accounts ................................................................................ 83
6.1.6 Media ......................................................................................... 85
6.1.7 VoIP Services................................................................................ 87
6.2 DDNS ................................................................................................ 88
6.3 DMZ Host............................................................................................ 90
6.4 UPnP................................................................................................. 91
6.5 UPnP Port Mapping ................................................................................ 93
6.6 Port Forwarding..................................................................................... 93
6.7 DNS Service ........................................................................................ 95
6.7.1 Domain Name ............................................................................... 95
6.7.2 Hosts ......................................................................................... 96
6.7.3 DNS........................................................................................... 98
6.8 QoS .................................................................................................. 99
6.8.1 Basic.......................................................................................... 99
6.8.2 Classification ............................................................................... 101
6.9 SNTP................................................................................................ 107
6.10 IGMP .............................................................................................. 108
6.11 MLD ................................................................................................ 110
6.11.1 MLD Snooping ............................................................................ 110
6.11.2 MLD Proxy................................................................................. 111
6.12 USB Storage...................................................................................... 112
6.13 FTP Application .................................................................................. 113
6.14 Port Trigger ....................................................................................... 115
6.16 Application List ................................................................................... 117
7 Administration .....................................................................................120
5