CP Plus CP-UNR-1xxQ1 Series, User Manual

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5.6.6 Network
Here is for you to input network information. See Figure 5-33.

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.

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.

Subnet prefix: The input value ranges from 0 to 128. It is to mark a specified network MAC
address. Usually it includes an organization of multiple-level.

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: 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.

TCP port: Default value is 25001. You can change if necessary.

UDP port: Default value is 25002. You can change if necessary.

HTTP port: Default value is 80.

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.

Max connection: system support maximal 20 users. 0 means there is no connection limit.

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.

Preferred DNS server: DNS server IP address.

Alternate DNS server: DNS server alternate address.

Transfer mode: Here you can select the priority between fluency/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.