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IP address: Here you can input the corresponding number to input the IP address. Then you can set
the corresponding subnet mask the default gateway.
Default gateway: Here you can input the default gateway. Please note the system needs to check
the validity of all IPv6 addresses. The IP address and the default gateway should be in the same IP
subnet. That is to say, the specified length of the subnet prefix should have the same string. For
example, if the IP address is 192.168.0.25, the default gateway should start with 192.168.0.X. The
default gateway is usually the IP address of the router.
DHCP: This enables the DVR to automatically obtain an IP address from another network device
such as a server or more commonly, a router. When the DHCP function is enabled, you can not
modify the IP address, Subnet mask, or Gateway. These values are obtained from the DHCP
function. If you have not enabled the DHCP function, IP/Subnet mask/Gateway display as zero. You
need to disable DHCP function to view current IP information. Also, when PPPoE is operating, you
can not modify IP/Subnet mask /Gateway.
MTU: This is used to set the 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 the network turning off. That is to say, MTU modification can affect current the network
service. System may pop up a dialog box for you to confirm setup when you want to change the
MTU value. Click the OK button to confirm current reboot, or you can click the Cancel button to
terminate current modification. Before the modification, you can check the MTU of the gateway; the
MTU of the DVR should be the same or 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 s, switchs, and
network adapters.
1492: Recommend value for PPPoE.
1468: Recommend value for DHCP.
Preferred DNS server: DNS server IP address.
Alternate DNS server: Alternate DNS server IP address.
Net mode: Here you can select the priority between fluency and video qualities.
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.
After completing the setup please click the save button and the system goes back to the previous menu.
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