NR2101 User’s Guide
92
C
HAPTER
10
LAN Settings
10.1 Overview
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to obtain
TCP/IP configuration at start-up from a server. You can configure the NR2101 as a DHCP server or disable
it. When configured as a server, the NR2101 provides the TCP/IP configuration for the clients. If DHCP
service is disabled, you must have another DHCP server on your LAN, or else the computer must be
manually configured.
10.1.1 What You Can Do
• Use the
LAN Settings
screen to enable the LAN DHCP server and view the current DHCP client
10.1.2 What You Need To Know
The following terms and concepts may help as you read through this chapter.
MAC Addresses
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned
at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02. Find
out the MAC addresses of your network devices if you intend to add them to the
DHCP Client List
screen.
IP Pool Setup
The NR2101 is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to 192.168.1.64. This
configuration leaves 31 IP addresses (excluding the NR2101 itself) in the lower range (192.168.1.2 to
192.168.1.32) for other server computers, for instance, servers for mail, FTP, TFTP, web, etc., that you may
have.
10.2 LAN Settings
The NR2101 has the built-in DHCP server capability that assigns IP addresses to systems that support
DHCP client capability. Use this screen to enable the DHCP server function. Click
LAN SETTINGS
and the
following screen displays. Enter the IP address of the default gateway on the LAN. Enter the subnet mask
in dotted decimal notation, for example 255.255.255.0. Select
Enable
or
Disable
in the
LAN DHCP
field to
enable or disable the DHCP function on the NR2101. Enter the first and the last of the contiguous
addresses in the IP address pool. Enter the time length the DHCP server allows the assigned IP address to
be used.
