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gateway; the MTU of the NVR should be the same or lower than the MTU of the gateway. This way,
packets can be reduced, and the network transmission efficiency be enhanced. The following MTU
values are for reference only.
1500: Ethernet information packet maximum 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 routers, switches,
and network adapters.
1492: Recommend value for PPPoE
1468: Recommend value for DHCP.
MAC address: This field shows the NVR’s MAC address, which is unique to this device. This number is
read-only and is used to access a local area network (LAN).
Subnet Mask: This field allows the user to enter a custom subnet mask. The default subnet mask is
255.255.255.0. This number is used to determine which subnetwork the IP address belongs to.
Mode: The current protocol that is being used on the device. This can be either static or DHCP.
Static vs DHCP: This check box allows the user to choose between a static IP address, and a dynamic
IP address. DHCP stands for Dynamic Host Configuration Protocol, and this enables the NVR 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, the user cannot modify the IP address,
Subnet Mask, or Gateway, as these values are obtained from the DHCP function. To view the
current IP address, DHCP needs to be disabled.
Note: When PPPoE is enabled, modification of IP Address, Subnet Mask, and Gateway becomes
prohibited.
IP Version: This dropdown allows the user to select the IP version. The two options are IPV4 and IPV6.
Preferred DNS server: This field allows the user to enter the DNS server IP address.
Alternate DNS server: This field allows the user to enter the Alternate DNS server IP address.
Default Card: The current Ethernet card being used in the system.
Press the Refresh button to refresh the interface. To confirm settings, click the Save button.
Connection
This screen allows users to configure port connections. It is important that the system is rebooted if any
changes are made to the settings on this screen. Also, ensure that port values do not conflict.
Below is a screenshot of the connection screen:
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