Firewall Protection

Enable or disable the SPI firewall.

Block WAN Request

By enabling the Block WAN Request feature, you can prevent your network from being "pinged," or detected, by other Internet users. The Block WAN Request feature also reinforces your network security by hiding your network ports. Both functions of the Block WAN Request feature make it more difficult for outside users to work their way into your network. This feature is enabled by default. Uncheck to disable this feature.

Filter Multicast

Enable this option if you do not wish to receive multicast traffic that is sometime sent by your ISP.

Filter Internet NAT Redirection

This feature uses Port Forwarding to prevent access to local servers from your local networked computers.

Filter IDENT (Port 113)

Prevents outside intruders from attacking the router through the internet using service port 113.  Select Enable to prevent attack through this service port.  However, some applications may require this service port to be available. If needed, uncheck to allow those applications to work