5
4.4 Advanced Setup ..........................................................................75
4.4.1 Firewall............................................................................75
4.4.2 Routing............................................................................75
4.4.3 NAT ...............................................................................77
4.4.4 QoS ...............................................................................82
4.4.5 VLAN...............................................................................83
4.4.6 ADSL ...............................................................................86
4.5 Access Management...................................................................87
4.5.1 ACL ...............................................................................87
4.5.2 IP Filter............................................................................89
4.5.3 SNMP..............................................................................94
4.5.4 UPnP...............................................................................94
4.5.5 DDNS..............................................................................96
4.5.6 CWMP.............................................................................97
4.6 Maintenance................................................................................99
4.6.1 Administration..................................................................99
4.6.2 Time Zone .......................................................................99
4.6.3 Firmware .......................................................................101
4.6.4 System Restart..............................................................102
4.6.5 Diagnostic......................................................................103
4.7 Status.........................................................................................104
4.7.1 Device Info ....................................................................104
4.7.2 System Log ...................................................................107
4.7.3 Statistics ........................................................................108
Chapter 5 Troubleshooting...................................................................109
5.1 Using LEDs to Diagnose Problems...........................................109