Asus WL-330N3G - Manual (Page 56)

4-30 Chapter 4: Configuration
4.3.4 Internet Firewall
General
This function allows you to configure the basic security for your WL-330N3G and
other devices connected to it.
If you want to filter out specific packets, refer to the next section LAN to WAN
Filter.
URL Filter
This function allows you to block specific URL access from your local network.