SYSTem:COMMunicate:LAN:DHCP
SYSTem:COMMunicate:LAN:DHCP
This functionality is available on the 34972A only.Syntax
SYSTem:COMMunicate:LAN:DHCP <mode>
SYSTem:COMMunicate:LAN:DHCP?
Description
This command disables or enables use of the Dynamic Host Configuration Protocol (DHCP) for the instrument.
When DHCP is enabled (factory setting), the instrument will try to obtain an IP address from a DHCP server. If a DHCP server is found, it will assign a dynamic IP address, Subnet Mask, and Default Gateway to the instrument. If a DHCP server is not found, the instrument uses AutoIP to automatically configure its IP setting in the Automatic Private IP Addressing range (169.254.xxx.xxx).
When DHCP is disabled, the instrument will use the static IP address, Subnet Mask, and Default Gateway during power-on.
If you change the DHCP mode, you must execute a SYSTem:COMMunicate:LAN:UPDate command to activate the setting.
Parameters
Name Type Range of Values Default Value <mode> Boolean {OFF|0|ON|1} This is a required parameter.
Remarks
- Most site LANs have a DHCP server.
- If a DHCP LAN address is not assigned by a DHCP server, then an AutoIP address static IP will be assumed after approximately two minutes.
- The DHCP setting is stored in non-volatile memory, and does not change when power has been off, after a Factory Reset (*RST command), or after an Instrument Preset (SYSTem:PRESet command).
- The query returns the current setting only. This may differ from what was just set if you have not yet executed a SYSTem:COMMunicate:LAN:UPDate command.
Return Format
The query returns 0 (OFF) or 1 (ON).
Examples
The following command disables DHCP.
SYST:COMM:LAN:DHCP OFF SYST:COMM:LAN:UPDate
The following query returns the current DHCP setting.
SYST:COMM:LAN:DHCP?
Typical Response: 0
See Also
LAN Configuration Introduction
SYSTem:COMMunicate:LAN:GATEway