You can configure the iDRAC from Windows directly to the iDRAC interface via CLI by running the following command, while on the OMSA folder of the server.
C:\Program Files\Dell\SysMgt\RAC<versionnumber)\
Set up networking:
racadm setniccfg –s <drac ip> <drac subnet mask> <gateway>
Example
racadm setniccfg -s 192.168.x.x 255.255.255.0 192.168.x.x
List users
racadm getconfig -g cfgUserAdmin -o cfgUserAdminUserName -i 2
Creating a user from scratch, in this example username “virtualcenter” with password “123456”
racadm config -g cfgUserAdmin -o cfgUserAdminUserName -i 3 virtualcenter racadm config -g cfgUserAdmin -o cfgUserAdminPassword -i 3 123456 racadm config -g cfgUserAdmin -i 3 -o cfgUserAdminPrivilege 0x00000001 racadm config -g cfgUserAdmin -i 3 -o cfgUserAdminIpmiLanPrivilege 2 racadm config -g cfgUserAdmin -i 3 -o cfgUserAdminIpmiSerialPrivilege 2 racadm config -g cfgUserAdmin -i 3 -o cfgUserAdminSolEnable 1 racadm config -g cfgUserAdmin -i 3 -o cfgUserAdminEnable 1