LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration35EN3.4 TCP/IP settings to workstation PCsThe correct addressing of all devices within a LAN is extremely important forTCP/IP networks. In addition, all computers must know the IP addresses of twocentral points in the LAN: Default gateway – receives all packets that are not addressed to compu-ters within the local network. DNS server – translates network names (www.lancom.de) or names ofcomputers (www.lancom.de) to actual IP addresses.The LANCOM can perform the functions of both a default gateway and a DNSserver. In addition, as a DHCP server it can also automatically assign valid IPaddresses to all of the computers in the LAN.The correct TCP/IP configuration of the PCs in the LAN depends on the methodused to assign IP addresses within the LAN: IP address assignment via the LANCOM (default)In this operating mode the LANCOM not only assigns IP addresses to thePCs in the LAN, it also uses DHCP to specify its own IP address as that ofthe default gateway and DNS server. The PCs must therefore be configu-red so that they automatically obtain their own IP address and the IPaddresses of the standard gateway and DNS server (via DHCP). IP address assignment via a separate DHCP serverThe workstation PCs must be configured so that they automatically obtaintheir own IP address and the IP addresses of the standard gateway andDNS server (via DHCP). The IP address of the LANCOM must be stored onthe DHCP server so that the DHCP server transmits it to the PCs in the LANas the standard gateway. In addition, the DHCP server should also specifythe LANCOM as a DNS server. Manual IP address assignmentIf the IP addresses in the network are assigned static ally, then for each PCthe IP address of the LANCOM must be set in the TCP/IP configuration asthe standard gateway and as a DNS server. For further information and help on the TCP/IP settings of yourLANCOM, please see the reference manual. For more information onthe network configuration of the workstation computers, please referto the documentation of your operating system.