Commax CVN-0430F, Руководство пользователя, Страница: 48 / 122

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DNS (SECONDARY) Enter Secondary DNS address that is assigned for the NVR
DDNS Dynamic Domain Name System (DDNS) allows a DNS name to be
constantly synchronized with a dynamic IP address. In other words, it
allows using a dynamic IP address to be associated with a static domain
name so others can connect to it by the static name.
Enable/disable using domain name address through DDNS server.
DDNS 1 : Select one type among the following three DDNS server.
DDNS 2 : Select this type when wants to use other general-purpose
DDNS Server.
DDNS INTERVAL : Set the connection interval (5-60minutes)
4-9-1. Network Port and Web Port
Connecting NVR through a common IP sharing device, each NVR must be assigned a unique TCP port
number for access from outside the LAN. This port number is displayed on NETWORK>NETWORK PORT
Setup MENU.
NOTE:
If you access the NVR only within the same LAN, the TCP port number does not need to
be changed. Network access beyond a router
To access NVR beyond a router (firewall), you must open the proper TCP ports for live/playback streaming,
for commands, for remote backup, and for audio streaming. If these ports are not opened properly, you
can’t access the NVR beyond a router.
o
For live/playback streaming, for commands, for remote backup : Open the port number
on NETWORK>NETWORK PORT menu. The default port number is 5445.
o
For bi-directional audio: Open the port number on NETWORK AUDIO PORT. The default
port number is [NETWORK PORT 1].
o
For web-viewer downloading and remote firmware upgrading : Open the port number on
NETWORK>WEB PORT menu. The default port number is 80.
4-9-2. Network Types
4-9-2-1. DHCP
An IP address is automatically assigned by the DHCP server, which automatically assigns the IP address
and other parameters to new devices.
4-9-2-2. STATIC
IP address, Subnet Mask, Gateway, and DNS are manually assigned by the user.
•
IP ADDRESS: The fixed IP address of the NS unit.
•
SUBNET MASK: The subnet mask for the LAN.
•
GATEWAY: The IP address of the Gateway.
•
DNS (PRIMARY) The primary address of Domain Name Server
•
DNS (SECINDARY): The secondary address of Domain Name Server