Nokia Network Voyager for IPSO 4.0 Reference Guide 1453 Configuring System FunctionsThis chapter describes how to configure many basic system functions.Configuring DHCPDynamic Host Configuration Protocol (DHCP) for Nokia IPSO provides complete DHCP clientand DHCP server capabilities for your Nokia appliance. DHCP gives you the ability to providenetwork configuration parameters, through a server, to clients which need the parameters tooperate on a network. DHCP eliminates the need for you to configure each client manually andthus reduces configuration errors.The Nokia IPSO implementation of DHCP includes the following: Enabling the DHCP client Configuring the DHCP client interface Dynamic and fixed IP address allocation from the DHCP server. Automatic Domain Name System (DNS) server updates from the DHCP server. The ability to specify various client parameters including which servers are available forservices such as DNS, NTP, TFTP, and SMTP. You can also configure NetBIOS over TCP/IP which includes identifying WINS and Datagram Distribution servers available to clients. Support for VLAN clients.NoteIf you enable the IPSO DHCP server, the appliance receives and accepts DHCP requestseven if there is a firewall rule blocking DHCP requests. Although requests are shown asblocked in the firewall logs, the IPSO DHCP server still provides addresses to clients thatrequest them. If you don’t need the DHCP server, leave it disabled (the default option). If youenable the DHCP server but do not want DHCP requests from the outside to be accepted,enable it only on internal interfaces.