User guide

Configuring Network Settings
84 Check Point ZoneAlarm User Guide
Note: The internal network range is defined both by the ZoneAlarm router’s internal
IP address and by the subnet mask.
For example, if the ZoneAlarm router’s internal IP address is 192.168.100.7, and
you set the subnet mask to 255.255.255.0, the network’s IP address range will be
192.168.100.1 – 192.168.100.254.
5. Click Apply.
A warning message appears.
6. Click OK.
• The ZoneAlarm router's internal IP address and/or the internal network range
are changed.
• A success message appears.
7. Do one of the following:
• If your computer is configured to obtain its IP address automatically
(using DHCP), and the ZoneAlarm DHCP server is enabled, restart your
computer.
Your computer obtains an IP address in the new range.
• Otherwise, manually reconfigure your computer to use the new
address range using the TCP/IP settings. For information on configuring
TCP/IP, see TCP/IP Settings on page
28.