XtendLan XL-ICA-220 manual
internal address inside your gateway router. What this means is, you can think of your
router as being divided into two halves, the LAN side (inside) and the WAN side (outside
or Internet side). When a connection request arrives at your router from the Internet, it
will not get any farther than the WAN side unless you have specifically instructed your
router to pass this type of request to a specific device on your LAN. This process is
known as port forwarding or port redirecting.
6.3 Port Forwarding
All TCP/IP (Internet) networking uses software ports. Ports can be thought of as channels
on your television. By default, all web page traffic is on channel (port) 80. By default, the
IP Camera uses port 80 to deliver its web page to your browser. Therefore, both of
these
channels
(ports) must be open (not blocked by your router/firewall) to incoming
traffic in order for you to connect to the camera from the Internet. Also, these two ports
must be forwarded or redirected to the camera’s LAN IP address by your gateway
router. Your router’s setup software should provide a utility for port forwarding or
redirecting.
Before setting up port forwarding, it’s best to configure your IP Camera to use a
static
LAN IP since your port forwarding setup will need to be updated if the camera’s LAN IP
address changes.
Note:
Forwarding ports to your camera does not pose any additional security
risk to your LAN.
6.4 Default Gateway
Devices (PCs, cameras, etc.) on your network connect to the Internet via a gateway.
For most home networks, a NAT type router serves as the gateway. For business LANs,
the gateway may be a PC running gateway software. In order for any device on your
network to get connected to the Internet, it must know the LAN IP address of your
gateway. If your camera is set up to use DHCP, then it will retrieve this information
automatically from your router.
However, if you have configured your camera to use a static IP address, you must also be
sure that you have set the correct gateway IP address in order to connect your camera to the
Internet.
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