TRASSIR TR-D4D2, Руководство пользователя

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CHAPTER 2. TRASSIR IP CAMERA CONNECTION
2.4 Connecting to the IP camera via the Internet
There are several options to access IP camera via the Internet:
 The Internet service provider provides an actual static IP address.
In this case, the provider grants the subscribe a list of network settings:
IP address ,
subnet mask , gateway and DNS server IP address , or PPPoE connection details, which
should be specified in the camera settings. Using such a network organization, it is
impossible to use an external IP address to connect to several network devices at
once, that is, it will be possible to connect to only one IP camera at a time.
NOTE.
A static camera IP address and other required parameters are specified in the network
settings (see 3.3.3.1).
See PPPoE settings description in 3.3.3.5.

The Internet service provider allocates an actual external static IP address, which is
used to connect to an office or home network.
In this case, to organize the local network, a special device is used - a router (or a
NAT server). To access the IP camera from the Internet, you should configure
forwarding of the incoming connections from the router (NAT server) to the internal
local addresses of IP cameras.
NOTE.
See detailed router settings description in «SUPPLEMENT D. Router settings»

The Internet service provider allocates an actual external dynamic IP address. That is
upon connection to the Internet the IP address will be different each time. This
variant is very common when working through 3G, GPRS or ADSL connection.In thi
case you should use DDNS server options.
NOTE.
See description of DDNS server in IP camera in 3.3.3.1.
User manual for TRASSIR IP cameras 57