3 Language Dictionary176 Keysight Models 6811C, 6812C, and 6813C Programming GuideSystem Subsystem CommandsThe system commands control the system-level functions of the ac source.Subsystem syntaxSECurity[:IMMediate]SYSTem:COMMunicate:LAN:CONTrol? Reads the initial control connection port number:DHCP Disables or enables instrument's use of DHCP:DNS[{1|2}] Assigns static IP addresses:DOMain? Returns the domain name assigned to the ac source:GATeway Assigns a default gateway for the ac source:HOSTname Assigns a hostname to the ac source:IPADdress Assigns a static Internet Protocol (IP) address:MAC? Returns the Media Access Control (MAC) address:SMASk Assigns a subnet mask for the ac source:TELNet:PROMpt Sets the command prompt:WMESsage Sets the welcome message:UPDate Stores changes made to the LAN settings:RLSTate Sets the state of the interface:TCPip:CONTrol? Sets the overall operating mode of the ac source:ERRor? Returns the error number and error string:LANGuage Sets the command language of the ac source to SCPI:PERSona:MANufacturer Sets the manufacturer string:DEFault Sets the manufacturer string to KeysightTechnologies:MODel Sets the model string returned by *IDN? Query:DEFault Sets the model string to default:SECurity:COUNt? Returns the security count of the ac source[:IMMediate] Clears all user-accessible instrument memory:SET Sets up the ac source