WatchGuard Firebox System 7.0 User Guide

Chapter 5: Using Policy Manager to Configure Your NetworkConfiguring Out-of-Band ManagementYou use the OOB tab on the Network Configuration dialogbox to enable the management station to communicatewith a Firebox by way of a modem (not provided with theFirebox) and telephone line. For information on configuringout-of-band management, see Chapter 17, “Connectingwith Out-of-Band Management.”Defining a Firebox as a DHCP ServerDynamic Host Configuration Protocol (DHCP) is an Internetprotocol that simplifies the task of administering alarge network. A device defined as a DHCP server automaticallyassigns IP addresses to network computers froma defined pool of numbers. You can define the Firebox as aDHCP server for the customer network behind the firewall.One parameter that you define for a DHCP server is leasetimes. This is the amount of time a DHCP client can use anIP address that it receives from the DHCP server. When thetime is close to expiring, the client contacts the DHCPserver to renew the lease.Note that the Firebox should not be used to replace anenterprise DHCP server. If you already have a DHCPserver configured, you should continue to use that serverfor DHCP.From Policy Manager:1 Select Network => DHCP Server.The DHCP Server dialog box appears, as shown in the followingfigure.66 WatchGuard Firebox System