Chapter 3: Configuration24 Malibu Networks AirMAX“ CPE/BTS3. Connecting a PC to the CPE s Power Injector with acrossover cable and configuring the CPE s radiomodem. You can also change CPE IP address(optional).4. Testing BTS to CPE wireless communications usingan attached PC.Initial TCP/IP ConfigurationAll AirMAX systems come factory preset with a default IPaddress (192.168.1.1) to simplify network configuration.At configuration you then can change the default IP to acustomer-provided valid IP on your LAN. Beforeconfiguring the AirMAX system, ensure that you know theIP addresses, router IP address (sometimes calledgateway IP), and subnet mask that will be used for theAirMAX CPE or BTS system. Your network administratorshould be able to provide you with the proper values.Also, ensure that a PC with an internet browser isavailable that has connectivity to the AirMAX systemPower Injector, either via a LAN connection (hub orswitch) or by direct connection via an ethernet crossovercable. You will be using this PC to configure the AirMAXBTS and CPE units.Figure 3-1. AirMAX BTS/CPE NetworkRouter PowerInjectorODUODUCPEBTSWANLANHubTo build an AirMAX system,you need a BTS and one ormore CPE systems as neededfor subscribers.ODUCPEPoECablePoECablePoECablePowerInjector PowerInjector