Proprietary & Confidential Page 3 of 86
Revision: V1.0 Apr. 23, 2008
4.3.2 Introducing DHCP........................................................................................................................28
4.3.3 Enabled DHCP..............................................................................................................................28
4.3.4 Relay DHCP..................................................................................................................................29
4.4 The Wireless LAN Screen (for DSL-2120W only) .........................................................................30
4.4.1 Access Point Settings .................................................................................................................31
4.4.2 Multiple SSIDs Settings...............................................................................................................32
4.4.3 Wireless MAC Address Filter......................................................................................................32
4.4.3.1 WEP............................................................................................................................................33
4.4.3.2 WPA-PSK ...................................................................................................................................33
Chapter 5 - The Advanced Setup Screens..........................................................................................35
5.1 The Routing Screen........................................................................................................................35
5.2 The NAT Screen ..............................................................................................................................36
5.2.1.1 What NAT Does .........................................................................................................................37
5.2.1.2 How NAT Works ........................................................................................................................37
5.2.1.3 NAT Application ........................................................................................................................38
5.2.1.4 NAT Mapping Types..................................................................................................................39
5.2.2 DMZ...............................................................................................................................................40
5.2.3 Virtual Server................................................................................................................................40
5.3 The QoS Screen..............................................................................................................................41
5.3.1 Rule...............................................................................................................................................42
5.3.2 Action............................................................................................................................................44
5.4 The ADSL Screen............................................................................................................................45
5.5 The Firewall Screen ........................................................................................................................45
Chapter 6 - The Access Management Screens...................................................................................46
6.1 The ACL Screen ..............................................................................................................................46
6.2 The Filter Screen.............................................................................................................................47
6.2.1 Assigning IP/MAC Filter ..............................................................................................................47
6.2.2 Assigning Application Filter........................................................................................................49
6.2.3 Assigning URL Filter....................................................................................................................50
6.3 The SNMP Screen ...........................................................................................................................50
6.4 The UPnP Screen............................................................................................................................51
6.4.1.1 NAT Traversal............................................................................................................................51
6.4.1.2 Cautions with UPnP..................................................................................................................52
6.4.1.3 Configuring UpnP.....................................................................................................................52
6.4.2 Installing UPnP in Windows........................................................................................................52
6.4.2.1 Installing UPnP in Windows Me...............................................................................................53
6.4.2.2 Installing UPnP in Windows XP...............................................................................................54
6.4.2.3 Web Configurator Easy Access...............................................................................................59
