IC Realtime 4/8/16/32 Channel 1U PoE Network Video Recorder User Manual

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46

z

HTTP port: Default value is 80.

z

RTSP port: Default value is 554.

Important: System needs to reboot after you changed and saved any setup of the above
four ports. Please make sure the port values here do not conflict.
z

Max connection: system support maximal 20 users. 0 means there is no connection limit.

z

MTU: It is to set MTU value of the network adapter. The value ranges from 1280-7200 bytes.

The default setup is 1500 bytes. Please note MTU modification may result in network adapter
reboot and network becomes off. That is to say, MTU modification can affect current network
service. System may pop up dialog box for you to confirm setup when you want to change
MTU setup. Click OK button to confirm current reboot, or you can click Cancel button to
terminate current modification. Before the modification, you can check the MTU of the
gateway; the MTU of the NVR shall be the same as or is lower than the MTU of the gateway.
In this way, you can reduce packets and enhance network transmission efficiency.

The following MTU value is for reference only.

—

1500: Ethernet information packet max value and it is also the default value. It is the

typical setup when there is no PPPoE or VPN. It is the default setup of some router,
switch or the network adapter.

—

1492: Recommend value for PPPoE.

—

1468: Recommend value for DHCP.

—

Please make sure MTU port does not conflict with other ports.

z

Preferred DNS server: DNS server IP address.

z

Alternate DNS server: DNS server alternate address.

z

Transfer mode: Here you can select the priority between fluency/video qualities.

z

LAN download: System can process the downloaded data first if you enable this function. The

download speed is 1.5X or 2.0X of the normal speed.

Important
For the IP address of IPv6 version, default gateway, preferred DNS and alternate DNS, the
input value shall be 128-digit. It shall not be left in blank.
After completing all the setups please click save button, system goes back to the previous menu.

Figure 4-33

4.6.5.1 Network Setting

Network setting interface is shown as in Figure 4-34. Please draw a circle to enable
corresponding function and then double click current item to go to setup interface.

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