Access your firewall??™s configuration page, which may contain references to
various applications, specific ports and protocols, or both. In our example router/
firewall, there are two pages, shown in Figures 11-3 and 11-4, both of which have
Figure 11-3
Opening your firewall
for specific applications
78 Project 11
settings for specific applications and custom settings. Look up your application or
follow the directions provided with it to allow UDP, TCP, or both data protocols into
your network on the specific port or ports listed for them.
Step 4: Configure Your Firewall for Internal Servers
In addition to allowing Internet traffic for specific applications onto your network, you
may want to allow someone outside your local network to access only specific computers
inside your local network , such as an FTP server or web server, to do only specific
tasks, such as remotely control your computer, or access a web camera. Figure 11-5
shows the router configuration screen for virtual servers. Though technically not an
accurate description in this case, this page tells your router that if an outside computer
wants access to a web server, wants remote computer control, or wants some other application
on your local computers, your router should direct that request to a specific
Figure 11-4
Configuring your
firewall for custom
applications and ports
Configuring Firewall Protection for Your Network 79
computer, and only that specific computer.
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