![background image](http://html1.mh-extra.com/html/dahua-technology/lite-n42b3p-series/lite-n42b3p-series_user-manual_500755102.webp)
Local Basic Operation
90
Parameter
Description
default Ethernet port (usually the Ethernet port 1 by default) to
request the services from the device end such as DHCP,
Email and FTP. If one of the two Ethernet ports is
disconnected as detected by networking testing, the system
network status is regarded as offline.
Fault Tolerance
: Two Ethernet ports share one IP address.
Normally only one Ethernet port is working and when this port
fails, the other port will start working automatically to ensure
the network connection.
When testing the network status, the network is regarded as
offline only when both of the two Ethernet ports are
disconnected. The two Ethernet ports are used under the
same LAN.
Load Balance
: Two network cards share one IP address and
they are working at the same time to share the network load
averagely. If one of them fails, the other can continue working
normally.
When testing the network status, the network is regarded as
offline only when both of the two Ethernet ports are
disconnected. The two Ethernet ports are used under the
same LAN.
The Device with single Ethernet port does not support this
function.
Default
Ethernet
Port
In the
Ethernet Card
list, select an Ethernet port as a default port.
This setting is available only when the
Multi-address
is selected
in the
Net Mode
list.
IP Version
In the
IP Version
list, you can select
IPv4
or
IPv6
. Both versions
are supported for access.
MAC Address
Displays the MAC address of the Device.
DHCP
Enable the DHCP function. The IP address, subnet mask and
default gateway are not available for configuration once DHCP is
enabled.
If DHCP is effective, the obtained information will display in
the
IP Address
box,
Subnet Mask
box and
Default Gateway
box. If not, all values show 0.0.0.0.
If you want manually configure the IP information, disable the
DHCP function first.
If PPPoE connection is successful, the IP address, subnet
mask, default gateway, and DHCP are not available for
configuration.
IP Address
Enter the IP address and configure the corresponding subnet
mask and default gateway.
IP address and default gateway must be in the same network
segment.
Subnet Mask
Default Gateway
DNS DHCP
Enable the DHCP function to get the DNS address from router.
Preferred DNS
In the
Preferred DNS
box, enter the IP address of DNS.
Alternate DNS
In the
Alternate DNS
box, enter the IP address of alternate DNS.
MTU
In the
MTU
box, enter a value for network card. The value ranges
from 1280 byte through 1500 byte. The default is 1500.
Test
Click
Test
to test if the entered IP address and gateway are
interworking.
Step 4 Click OK to NIC settings.