Network Settings74 Firebox X Edge e-SeriesAbout configuring the trusted networkYou must configure your trusted network manually if you do not use the Network Setup Wizard.You can use static IP addresses or DHCP for the computers on your trusted network. The Firebox X Edge e-Series has a built-in DHCP server to give IP addresses to computers on your trusted and optional networks. Youcan also change the IP address of the trusted network.The factory default settings of a Firebox X Edge DHCP server automatically give IP addresses to computers onthe trusted network. The trusted network starts with IP address 192.168.111.1. It is a class C network with asubnet mask of 255.255.255.0. The Edge can give an IP address from 192.168.111.2 to 192.168.111.254. Theseare private addresses that are not seen outside the trusted network. The factory default settings use the sameDNS server information on the internal and external interfaces.If necessary, you can disable the DHCP server. Or, you can use the Edge as a DHCP relay agent and send DHCPrequests to a DHCP server on a different network using a VPN tunnel. You can also use static IP addresses forthe computers on your trusted network.Any changes to the trusted network configuration page require that you click Submit. If necessary, theFirebox restarts.About changing the IP address of the trusted networkIf necessary, you can change the trusted network IP address. For example, if you connect two or more FireboxX Edge devices in a virtual private network, each Edge must use a different trusted network address. If the twosides of the VPN use the same trusted network IP addresses, one side must change the trusted network IPaddress range so that it is different from the other side. For more information, see What you need to createa VPN.If you change the IP address of the Firebox X Edge trusted interface, you must use the new IP addressin your browser address bar to connect to the Edge’s web management interface. For example, ifyou change the Firebox X Edge trusted interface IP address from the default 192.168.111.1 to10.0.0.1, then you must use https://10.0.0.1 to connect to the Firebox X Edge. Your computer’s IPaddress must also be changed so that it is in the new trusted network IP subnet range.
