2.14 Setting
2.14.1 Network
2.14.1.1 TCP/IP
The single network adapter interface is shown as in Figure 2-82 and the dual network
adapters interface is shown as in Figure 2-82
IP Version: There are two options: IPv4 and IPv6. Right now, system supports these two
IP address format and you can access via them.
MAC address: The host in the LAN can get a unique MAC address. It is for you to access
in the LAN. It is read-only.
Mode –
⚫ Static: It is to set Static or predefine IP for DVR.
⚫ DHCP: It is to auto search IP. When enable DHCP function, you cannot 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 cannot modify IP/Subnet mask /Gateway.
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.
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. The specified length of the subnet prefix shall have the same
string.
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. 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.
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.
Preferred DNS server: DNS server IP address.
Alternate DNS server: DNS server alternate address.
After completing all the setups please click save button, system goes back to the previous menu.
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