VIVOTEK
User's Manual - 21
Internet. Please refer to Network Type on page 70 for details.
For example, your router and IP settings may look like this:
Device
IP Address: internal
port
IP Address: External Port (Mapped port on the
router)
Public IP of router
122.146.57.120
LAN IP of router
192.168.2.1
Camera 1
192.168.2.10:80
122.146.57.120:8000
Camera 2
192.168.2.11:80
122.146.57.120:8001
...
...
...
Configure the router, virtual server or firewall, so that the router can forward any data coming
into a preconfigured port number to a network camera on the private network, and allow data
from the camera to be transmitted to the outside of the network over the same path.
From
Forward to
122.146.57.120:8000
192.168.2.10:80
122.146.57.120:8001
192.168.2.11:80
...
...
When properly configured, you can access a camera behind the router using the HTTP request
as follows: http://122.146.57.120:8000
If you change the port numbers on the Network configuration page, please open the ports
accordingly on your router. For example, you can open a management session with your router
to configure access through the router to the camera within your local network. Please consult
your network administrator for router configuration if you have troubles with the configuration.
For more information with network configuration options (such as that of streaming ports),
please refer to Configuration > Network Settings. VIVOTEK also provides the automatic port
forwarding feature as an NAT traversal function with the precondition that your router must
support the UPnP port forwarding feature.
