Rockwell Automation Publication ENET-UM004B-EN-P - November 2015 29
Configure an EtherNet/IP Communication Module   Chapter 3
To set the IP address with BOOTP/DHCP server, complete the following steps.
1. Start the BOOTP/DHCP software.
2. From the Tools menu, choose Network Settings.
3. Type the Subnet Mask of the network. 
The Gateway address, Primary and/or Secondary DNS address, and 
Domain Name fields are optional. 
4. Click OK.
The Request History panel appears with the hardware addresses of all 
modules that issue BOOTP requests. 
5. Select the appropriate module.