TCP/IP Properties: Configuring the DHCP Server
Original instructions
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The DHCP Client List Page
The EtherNet/IP communication module can be configured to perform the function of DHCP server. Connected network devices can subscribe to this DHCP service and obtain their IP parameters from the module.
Use this page to:
NOTE: The DHCP service is not enabled or disabled for a specific network device in this page. See the topic Enabling the DHCP Service, below, for information on how to enable the DHCP service for a specific device.
Viewing the DHCP Client List
The DHCP Client List includes a row for each networked EtherNet/IP device, identifying the devices that have subscribed to the DHCP service:
The list contains the following information for each networked device:
Property
Description
Number
The number assigned to the device in the EtherNet/IP configuration tool.
IP Address
The device IP address associated with the device.
Enable DHCP
TRUE indicates that the device subscribes to the DHCP service.
Identifier Type
Indicates the mechanism used by the server to recognize the client (MAC address or DHCP device name).
Identifier
The actual MAC address or DHCP device name.
Enabling the DHCP Service
The DHCP service for an EtherNet/IP device is not enabled in this page. Instead it is enabled and disabled in the remote EtherNet/IP device configuration. To turn on the DHCP service for a specific device, follow these steps:
Step
Action
1
n the Control Expert EtherNet/IP configuration tool, select the DHCP client device in the Devices window. In this example, the selected client is an STB_NIC_2212:
2
Select Devices → Properties. The General page of the Properties window opens for the selected device, indicating the DHCP client service is disabled (the default setting).
3
In the Network Properties area, under the heading DHCP Relation, configure the following properties:
Property:
Action:
Enable DHCP
Select TRUE.
DHCP Client Identifier
Select either:
  • MAC Address, or
  • Device Name
Mac Address/Device Name
Enter a value for either the device name or the MAC Address.
4
Click OK to close the device’s Properties window and save your edits.