By using the Filters screen, you can configure the router to block specific internal users from accessing the Internet. You can set up different filters for different users based on their IP addresses or their network Port number.

1. Enter the range of IP addresses that you want to filter into the IP address range fields. The users who have these IP addresses will not be able to access the Internet.
2. You can filter users by entering their network port number. Select the protocols and enter the range of port numbers and that you want to filter into the port number range fields. The users who have these port numbers will not be able to access the Internet.
3. You can also filter users by entering their physical address. Click the "Edit MAC Filter Setting" button and enter the MAC addresses that you want to filter into the MAC address fields. The users who use those MAC addresses will not be able to access the Internet.
4. Click the Apply button to save any changes.

This feature is designed to prevent users from attacking through the internet. When it is enabled, the router will drop both the unaccepted TCP request and ICMP packets from WAN site. The hacker will not find the router by pinging the WAN IP address.

This router is able to support IPSec and PPTP pass through. You can select either "Enable" or "Disable"of these options to switch them.

This router has ability to support remote management. If you wanted to manage this router through the WAN connection, you have to select "Enable" of this option and use port 8080 on PC from Internet to remotely manage this router.

If you wanted to upgrade the firmware of the router through the WAN connection, you have to select "Enable" of this option.

This feature can limit the MTU(Maximum Transmission Unit) of the router. If you want to use this feature, select "Enable" and fill in the MTU size.