System Log - Send syslog to a dedicated host or send an email alert to specified email address via an SMTP server. Dynamic DNS - To host your server on a changing IP address, you have to use dynamic domain name service (DDNS). QoS - Gives a user the capability to control network traffic with different priority. SNMP - Gives a user the capability to remotely manage a computer network by polling and setting terminal values and monitoring network events. Routing - If you have more than one router on your network you may need to enable RIP to allow packets to find the proper rout to their destination. System Time - Let you set up the system time of this device through NTP, PC's timer, or manually. Scheduling - You can set the scheduling rules here, and select the rule number in Virtual Server and Packet Filter, the functions will be active with your scheduling rules. Performance - Allows you to tweak WLAN settings.