Belkin ADSL Modem with Wireless-G Router F5D7632UK4 User Manual page 80

Appendixes
Virtual Servers
This function will allow you to route external (Internet) calls for
services such as a web server (port 80), FTP server (Port 21), or
other applications through your Router to your internal network.
Since your internal computers are protected by a firewall, machines
from the Internet cannot get to them because they cannot be "seen".
If you need to configure the virtual server function for a specific
application, you will need to contact the application vendor to find
out which port settings you need.
To manually enter settings, enter the IP address in the space
provided for the internal machine, the port type (TCP or UDP), and
the LAN and public port(s) required to pass. Then select "Enable"
and click "Set". You can only pass one port per internal IP address.
Opening ports in your firewall can pose a security risk. You can
enable and disable settings very quickly. It is recommended that you
disable the settings when you are not using a specific application.
Client IP Filters
The Router can be configured to restrict access to the Internet,
email, or other network services at specific days and times.
Restriction can be set for a single computer, a range of computers,
or multiple computers.
URL Blocking
To configure the URL blocking feature, specify the websites (www.
somesite.com) and/or keywords you want to filter on your network.
Click "Apply Changes" to activate the change. To complete this
configuration, you will need to create or modify an access rule in the
client IP filters section. To modify an existing rule, click the "Edit"
option next to the rule you want to modify. To create a new rule, click
on the "Add PC" option. From the "Access Control Add PC" section,
check the option for "WWW with URL Blocking" in the "Client PC
Service" table to filter out the websites and keywords specified.
Schedule Rule
To configure the schedule rule, specify the name, comment, start
time, and end time that you want to filter on your network. This page
defines schedule rule names and activates the schedule for use in
the "Access Control" page.
78 78