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10
Appendix
10.1 Port Mapping
Port mapping is mapping a port of outside web hosts IP address to a machine inside web, and provide the service.
When user connects to the port of the IP, the server will automatically map the request to the corresponding
machine inside LAN. With this function, we can map many ports of a machines IP address to different machines
different ports inside web. The port mapping can also have other special agent functions, like POP, SMTP, Telnet
and so on. Theoretically, it can provide more than sixty thousand ports. For example, if we want to map a web
server which has an IP address of 192.168.111.10, we just need to input the IP address and TCP port 80 into the
port mapping chart of the router. There are two ways to map the port: UPnP function automatically map and
modify the routers port mapping chart by manual.
10.1.1 UPNP Function
In order to get connection to the Embedded DVR through Public network, we need to set the Router to cross the
NAT of Embedded DVR. UPnP can make the NAT cross automatically by the UPnP agreement of Embedded
DVR, and dont have to set the Router.
Note: to realize the UPnP Function, there must be Router support and enable the UPnP Function.
The first step
Connect the Router to the network, get to the Menu of the Router, set the Router, and enable the UPnP Function.
Routers made by different manufacturers may have some difference, please refer to the specification carefully
before setting the Router.
The second step
Connect the Embedded DVR to the Router; the configuration will automatically gain the IP address or static IP.
After setting up the IP, click the Advanced. And get to the XXX, ports and multicast etc. choose to open the
Enable at the [UPnP port mapping]
The third step
Enter into the Router management interface; detect the port if there is already a Port mapping. If there is, it shows
UPnP settings finished.
The forth step
Input the IP address in IE, and add port number of the Embedded DVR, for example: 155.157.12.227:81. If you
want to enter by the Client Software, use the TCP port offered by the outer net.
Note: if there are a few embedded DVRs need to set the UPnP function, in order to avoid IP conflict, set the
ports of embedded DVR into different ports numbers. Otherwise, it will choose the embedded DVR port set
preceded as the first choice.
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