3.2 LAN Interface
These are the IP settings of the LAN (Local Area Network) interface for the device. These settings may
be referred to as "private settings". You may change the LAN IP address if needed. The LAN IP address is
private to your internal network and cannot be seen on the Internet. The default IP address is 192.168.1.1
with a subnet mask of 255.255.255.0.
LAN is a network of computers or other devices that are in relatively close range of each other. For
example, devices in a home or office building would be considered part of a local area network.
□LAN IP Address: Assign the IP address of LAN server, default is 192.168.1.1
□Subnet Mask: Select a subnet mask from the pull-down menu, default is 255.255.255.0.
DHCP Server Setting
DHCP stands for Dynamic Host Control Protocol. The DHCP server gives out IP addresses when a device
is starting up and request an IP address to be logged on to the network. The device must be set as a DHCP
client to "Obtain the IP address automatically". By default, the DHCP Server is enabled in the unit. The
DHCP address pool contains the range of the IP address that will automatically be assigned to the clients
on the network.
DHCP client computers connected to the unit will have their information displayed in the DHCP Client
List table. The table will show the Type, Host Name, IP Address, MAC Address, Description, and Expired
Time of the DHCP lease for each client computer.
DHCP Server is a useful tool that automates the assignment of IP addresses to numbers of computers in
your network. The server maintains a pool of IP addresses that you use to create scopes. (A DHCP scope is
a collection of IP addresses and TCP/IP configuration parameters that are available for DHCP clients to
lease.) Then, the server automatically allocates these IP addresses and related TCP/IP configuration
settings to DHCP-enabled clients in the network. The DHCP Server leases the IP addresses to clients for a
period that you specify when you create a scope. A lease becomes inactive when it expires. Through the
DHCP Server, you can reserve specific IP addresses permanently for hardware devices that must have a
static IP address (e.g., a DNS Server).
An advantage of using DHCP is that the service assigns addresses dynamically. The DHCP Server returns
addresses that are no longer in use to the IP addresses pool so that the server can reallocate them to
other machines in the network. If you disable this DHCP, you would have to manually configure IP for new
computers, keep track of IP addresses so that you could reassign addresses that clients aren't using, and
reconfigure computers that you move from one subnet to another. The DHCP Static MAP table lists all
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