Configuring the Managed PC Boot Agent (MBA)77Using the 3Com DOS Configuration ProgramThis section describes NIC configuration for computers running DOS or NetWare.To run the DOS diagnostic program:1 Copy 3c99xcfg.exe from the EtherCD to the root directory of a DOS-bootable diskette.2 Boot to DOS using the DOS-bootable diskette.3 Enter the following at the DOS prompt:a:\3c99xcfg.exewhere a:\ is the drive containing the DOS-bootable diskette.If multiple NICs are installed in the PC, select Select NIC on the first screen to display alist of installed NICs. Use the arrow keys to select the NIC that you want to configureand press Enter.4 Use the arrow keys to scroll the list and make a selection. Press Enter.5 Continue this procedure for other options. For more information on a specific option,select the option and press F1.Configuring the Managed PC Boot Agent (MBA)This section explains how to configure the Managed PC Boot Agent (MBA) boot ROM toboot from the network.Enabling or Disabling the Boot ROM SettingThe default NIC boot ROM setting is Disabled. This setting must be enabled to boot fromthe network.To enable or disable the NIC boot ROM setting:1 Make sure that the NIC is installed and is connected to the network and that the NICdriver is installed.2 Open the Windows Start menu.3 Select Programs, and then 3Com NIC Utilities.NOTE: If you do not have a DOS-bootable diskette, see “Making a DOS-BootableDiskette” on page 15 for instructions.NOTE: On the Configuration screen, when you choose the Auto Select setting forMedia Type, the setting for Duplex is automatically changed to Auto Select.Selecting Auto Select for Duplex automatically changes the Media Type setting toAuto Select.NOTE: Note that any configuration change you make through the Windows 2000Advanced tab overrides the same configuration setting made through the 3ComNIC (Windows) Diagnostic program or the 3Com DOS Diagnostic program.NOTE: Press Esc to return to a previous screen. If a secondary window is open,press Esc to close the window.NOTE: For detailed information on using, configuring, and troubleshooting theMBA boot ROM, refer to the Managed PC Boot Agent User Guide, located withthe MBA software on the EtherCD.