User`s guide

ZyAIR B-5000 User’s Guide
DHCP Parameters 10-1
Chapter 10
DHCP Parameters
This chapter provides information on the DHCP screen.
10.1 DHCP Overview
Dynamic Host Configuration Protocol automatically assigns IP addresses to clients when they log on. DHCP
centralizes IP address management on central computers that run the DHCP server program. DHCP leases
addresses, for a period of time, which means that past addresses are “recycled” and made available for future
reassignment to other systems.
10.2 General DHCP Server Parameters
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 ZyAIR as a DHCP server or disable it.
When configured as a server, the ZyAIR provides the TCP/IP configuration for the clients. If set to Disable,
DHCP service will be disabled and you must have another DHCP server on your LAN, or else the computers
must be manually configured.
10.3 IP Pool Setup
The ZyAIR can allocate fixed IP addresses in the fixed DHCP pool. This configuration leaves nine IP
addresses (excluding the ZyAIR itself) for other server computers, for instance, servers for mail, FTP, TFTP,
web, etc., that you may have. These parameters should work for the majority of installations.
10.4 Fixed Host Entry
The fixed host entry defines a fixed Ethernet-to-IP address mapping to limit the client station with the
Ethernet address from getting the IP address.
10.5 Configuring DHCP Parameters
The following screens allows you to enable or disable DHCP client settings, configure the server parameters
and view a pool of fixed host entries.