Configuring LAN Settings 45 If there is no DHCP server found on the network connected to theLAN port then the Firewall’s DHCP server is activated allowingautomatic address configuration on your LAN. If there is a DHCP server found on the network connected to the LANport then the Firewall deactivates its DHCP server. This prevents theFirewall giving out addresses that will conflict with those allocated byanother server.Entering informationabout your LANIf you are using NAT the Fill in information about your LAN screen willappear as shown in Figure 16 below. If you are not using NAT this screenwill not appear as these settings will be the same as the WAN settings.Figure 16 Configuring LAN Settings Choose an IP address for the LAN port of your Firewall and enter it inthe Firewall LAN IP Address field. Enter the Subnet mask for your LAN network in the LAN Subnet Maskfield.The default IP address of the Firewall is 192.168.1.254 with a subnetmask of 255.255.255.0. You may want to keep this setting as other3Com products also have their default addresses in this range.Click the Next button to continue.Configuring the DHCPServerIf a DHCP server has been detected on your LAN network then theFirewall will disable its DHCP server and this screen will not display.DUA1611-0AAA02.book Page 45 Thursday, August 2, 2001 4:01 PM
