User guide

Defining a Firebox as a DHCP Server
User Guide 59
Defining a Firebox as a DHCP Server
Dynamic Host Configuration Protocol (DHCP) is an Internet protocol that
simplifies the task of administering a large network. A device defined as a
DHCP server automatically assigns IP addresses to network computers
from a defined pool of numbers. You can define the Firebox as a DHCP
server for the customer network behind the firewall.
One parameter that you define for a DHCP server is lease times. This is
the amount of time a DHCP client can use an IP address that it receives
from the DHCP server. When the time is close to expiring, the client
contacts the DHCP server to renew the lease.
From Policy Manager:
1 Select Network => DHCP Server.
The DHCP Server dialog box appears, as shown in the following figure.
2 Enable the checkbox marked Enable DHCP Server.
3 Enter the default lease time for the server.
The default lease time is provided to clients that do not specifically request times.
4 Enter the maximum lease time.
The maximum lease time is the longest time the server will provide for a client. If a
client requests a longer time, the request is denied and the maximum lease time is
provided.