LAN or WAN networkIn TCP/IP networking, a LAN is often but not always implemented as a single IPsubnet. A router connects LANs to a WAN. In IP networking, the router maintainsboth a LAN address and a WAN address. Design considerations for computernetworks cover a wide range of topics including layout, capacity planning, andsecurity. To some extent, the network configuration also depends on user preferences.8.4.1.2 Setting communication parametersThe IP address and the corresponding mask can be set via the LHMI for the rear port.The front port uses a fixed IP address 192.168.0.254. The front port also usesDHCP.Each Ethernet interface has a factory default IP address when the complete IED isdelivered.Setting front communicationTo set up a standard PC with Microsoft Windows operating system for frontcommunication:1. To open Network Connections, click Start, point to Settings, click ControlPanel, and then double-click Network Connections.2. Double-click the connection that you want to configure, and then clickProperties.3. Select the TCP/IP protocol from the list of configured components using thisconnection and click Properties.1MRS756499 A Section 8CommissioningRED615 87Operation Manual