454If a TFTP server is available, you can use it and appropriateconfiguration files to perform any or all of the following tasks for a largenumber of EMX devices in the same network. Initial deployment Configuration changes Firmware upgrade Downloading diagnostic dataThis feature is drastically useful if you have hundreds or even thousandsof EMX devices to configure or upgrade.Warning: The feature of bulk configuration or firmware upgrade viaDHCP/TFTP only works on standalone EMX devices directlyconnected to the network. This feature does NOT work for slavedevices in the USB-cascading configuration.Tip: For the other alternative, see Configuration or FirmwareUpgrade with a USB Drive (on page 443).In This ChapterBulk Configuration/Upgrade Procedure ................................................454TFTP Requirements ..............................................................................455DHCP IPv4 Configuration in Windows ..................................................456DHCP IPv6 Configuration in Windows ..................................................466DHCP IPv4 Configuration in Linux ........................................................473DHCP IPv6 Configuration in Linux ........................................................475Bulk Configuration/Upgrade ProcedureThe DHCP/TFTP feature is supported as of release 3.1.0 so make surethat all EMX devices which you want to configure or upgrade are runningfirmware version 3.1.0 or later.Steps of using DHCP/TFTP for bulk configuration/upgrade:1. Create configuration files specific to your EMX models and firmwareversions. See Configuration Files (on page 444) or contact RaritanTechnical Support to properly prepare some or all of the followingfiles: fwupdate.cfg (always required)Appendix C Bulk Configuration or FirmwareUpgrade via DHCP/TFTP