Connection. IC Realtime NVR-8128K-DR

IP address

Here you can use up/down button () or input the corresponding number to input IP address. Then you can set the corresponding subnet mask the default gateway.

Mac Address

IP Version

It is to display host Mac address.

It is to select IP version. IPV4 or IPV6.

You can access the IP address of these two versions.

Default gateway Here you can input the default gateway. Please note system needs to check the validity of all IPv6 addresses. The IP address and the default gateway shall be in the same IP section. That is to say, the specified length of the subnet prefix shall have the same string.

DHCP

MTU

It is to auto search IP. When enable DHCP function, you can not modify IP/Subnet mask /Gateway. These values are from

DHCP function. If you have not enabled DHCP function,

IP/Subnet mask/Gateway display as zero. You need to disable DHCP function to view current IP information.

Besides, when PPPoE is operating, you can not modify

IP/Subnet mask /Gateway.

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 DVR 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.

Right now, the value here is for read-only.

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.

4.8.2.2 Connection

From main window->Setup->Network->Connection, the connection interface is shown as in Figure 4-28.

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