Webcam Server 41
Step 2: Configure Your Firewall for Webcam Access
In Project 11 we cover configuration steps for your router and firewall, and the latter
steps apply to this project??”we need to configure the firewall to allow access to our
webcam server software from across the Internet.
Using as an example my ISP-provided router/firewall, shown in Figure 6-5, I can
create specific ???pinholes,??? otherwise known as redirection of inbound TCP/IP traffic
to specific IP addresses/computers on specific TCP/IP ports.
In my case I have configured webcamXP to use port 8086 instead of the default
port 8080 it used. I then have to tell my firewall that all inbound traffic to a port I designate,
again 8086, is to go to the IP address I use for my webcamXP server??”10.10.10.113.
Save these values and then restart your router/firewall for the settings to take effect.
You may have to experiment with the port number settings, because many ISPs
block a variety of TCP/IP ports from being used to connect to subscriber computers
and programs. To verify that your webcam server can be contacted by others on the
Internet, call a friend and have them try to access your camera from their computer.
You may have to use the trial-and-error method of figuring out which ports work and
which ones do not, or contact your ISP for this information.
Figure 6-5
Most router/firewall
appliances allow you
to be very specific
about mapping
external TCP/IP
requests to individual
computers and
TCP/IP ports.
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