Configuring the Trusted NetworkUser Guide 71To configure the Firebox as a DHCP Relay Agent for the trustedinterface:1 Use your browser to connect to the System Status page. Fromthe navigation bar, select Network > Trusted.The Trusted Network Configuration page appears.2 Select the Enable DHCP Relay check box.3 Type the IP address of the DHCP server in the related field.4 Click Submit. You must restart the Firebox for newconfiguration to start.N OTEN OTEIf the Firebox cannot connect to the DHCP server in 30 seconds, ituses its own DHCP server to give IP addresses to computers on thetrusted network. You must enable the DHCP Server on the trustednetwork for the DHCP relay function to operate.Using static IP addresses for trusted computersYou can use static IP addresses for some or all of the computers onyour trusted network. If you disable the Edge DHCP server and youdo not have a DHCP server on your network, you must manuallyconfigure the IP address and subnet mask of each computer. Forexample, this is necessary when a client-server software applicationmust use a static IP address for the server. Static IP addresses mustbe on the same network as the Firebox trusted interface. Computerson the trusted network with static IP addresses must use the Fire-box’s trusted interface IP address for the default gateway.To disable the Firebox DHCP server, clear the Enable DHCP Serveron the Trusted Network check box on the Trusted Network Config-uration page and click Submit.N OTEN OTEComputers on the trusted network must use the Firebox’s trustedinterface IP address as the default gateway. If a computer doesnot use the Firebox as the default gateway, it usually cannot getto the external network or the Internet.Adding computers to the trusted networkYou can connect as many as seven computers to the trusted inter-face of the Firebox X Edge if you connect each computer to one ofthe Edge’s Ethernet ports 0 through 6. You can use 10/100 BaseT
