User's Manual Part 1

Configuring Network Settings
96 Check Point Safe@Office User Guide
Configuring a DHCP Server
By default, the Safe@Office appliance operates as a DHCP (Dynamic Host
Configuration Protocol) server. This allows the Safe@Office appliance to
automatically configure all the devices on your network with their network
configuration details.
Note: The DHCP server only serves computers that are configured to obtain an IP
address automatically. If a computer is not configured to obtain an IP address
automatically, it is recommended to assign it an IP address outside of the DHCP
address range. If you do assign it an IP address within the DHCP address range,
the DHCP server will not assign this IP address to another computer.
If you already have a DHCP server in your internal network, and you want to use it
instead of the Safe@Office DHCP server, you must disable the Safe@Office
DHCP server, since you cannot have two DHCP servers or relays on the same
network segment.
If you want to use a DHCP server on the Internet or via a VPN, instead of the
Safe@Office DHCP server, you can configure DHCP relay. When in DHCP relay
mode, the Safe@Office appliance relays information from the desired DHCP
server to the devices on your network.
Note: You can perform DHCP reservation using network objects. For information,
see Using Network Objects on page 131.