How to Turn Off DHCP Server on Rockwell Automations Stratix 5700 Ethernet Switch

Question:

Looking to disable the DHCP server on your Stratix 5700 Ethernet switch running on a Rockwell Automation machine? We have connected the G1 (or G2) port with a fixed IP address to our engineering office for monitoring and support. However, the switch is unexpectedly acting as a DHCP server, assigning IP addresses to the office computers. To resolve this issue, we need to eliminate all DHCP settings on the switch. Learn more about the 1783-BMS20CGN Stratix 5700 switch on Rockwell Automation's official website.

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Does the system have automatic IP address assignment for new drives enabled? If this feature is in use, it is advised not to turn off DHCP. Additionally, it is not recommended to connect automation equipment directly to corporate networks. It is better to consider installing a hardware firewall to secure both networks.

To deactivate the DHCP server feature on your Stratix switch, you must have the login credentials, password, and IP address of the device. You can access the internal web server for this purpose. Alternatively, if you are proficient in using the command line interface, you can disable the DHCP server through the terminal software using telnet. Be sure to refer to the manual for guidance on this process.

We followed the recommended steps to eliminate all forms of DHCP. Please refer to the attached document for more information. Is there anything else we should consider?

Did you properly reset the switch after implementing the updates?

Ken Moore inquired if the switch was rebooted or restarted after implementing the changes. Instead, the switch was simply powered off in the cabinet. Is there any additional action that should be taken in this situation?

I had the same issue with my Stratix 5700 recently. You need to access the switch's Embedded Web Server (EWS) through its assigned IP address. You'll find a tab there for IP Configuration where you can disable the DHCP function. Remember to save your settings. It's also pivotal that you reset your office computers' network interfaces afterward to ensure smooth operation with static IP addresses. Always refer to Rockwell Automation's user manual for precise instructions and reach out to their technical support if needed. Don't rush the process, patience is key in these steps.

I've had a similar issue with my Stratix 5700 switch. The solution I found required going into the Device Manager and manually deselecting the Enable DHCP option. Remember, though, you'll need to configure any devices connected to the switch with static IP addresses once you disable DHCP. Also, keep in mind these switches are industrial-grade, specifically designed for use in automation networks, so it's always best to consult with an automation engineer or reach out to Rockwell support for a more comprehensive guide if you're unsure.

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Frequently Asked Questions (FAQ)

FAQ: 1. How can I turn off the DHCP server on a Rockwell Automation Stratix 5700 Ethernet switch?

Answer: - To disable the DHCP server on a Rockwell Automation Stratix 5700 Ethernet switch, you will need to access the switch's configuration settings and eliminate all DHCP settings. You can connect to the switch using its G1 or G2 port with a fixed IP address for monitoring and support.

FAQ: 2. Why is my Rockwell Automation Stratix 5700 switch acting as a DHCP server?

Answer: - If your Rockwell Automation Stratix 5700 switch is unexpectedly acting as a DHCP server and assigning IP addresses to connected devices, it may be due to existing DHCP settings on the switch. To resolve this issue, you need to eliminate all DHCP settings on the switch.

FAQ: 3. Where can I find more information about the Rockwell Automation 1783-BMS20CGN Stratix 5700 switch?

Answer: - You can learn more about the Rockwell Automation 1783-BMS20CGN Stratix 5700 switch on Rockwell Automation's official website. They provide detailed information about the switch's features, specifications, and configuration options.

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