Dell Technologies SmartFabric OS10 S5200 Z9200 Z9300 Z9400 How to Disable BMC or IPMI Interface

Summary: In S5200 Z9200 Z9300 Z9400 platforms, the Intelligent Platform Management Interface (IPMI) is enabled by default. This helps to power-cycle the switch and control the hardware components remotely using ipmi commands. ...

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Instructions

The Baseboard Management Controller (BMC) uses the management interface to acquire an IP address by dhcp to be used for ipmi functions. This may cause two mac address to be learned on the switch that is connected to management port. We can disable the BMC interface to stop this from happening.

NOTE:  BMC interface details can only be seen or edited from system (linux). This cannot be seen from any show command in OS10.

Index

Mac Address of BMC Interface
Logging in to System Bash or Run the Command with System
How to View BMC Interface
How to Disable BMC Interface
How to Enable BMC Interface

 

Mac Address of BMC Interface


The mac address of the BMC (IPMI) interface will be the next mac address of management interface.
For example: If mac address of management interface is 3c:2c:30:76:36:80. BMC interface will have mac address 3c:2c:30:76:36:81

You can run the commands in default namespace even if the management interface is in the management VRF.


 

Logging in to System Bash


Use system bash or system <command> to view and edit BMC interface. You might be prompted to give login credentials.
 

S5200# system bash
admin@S5200:/home/admin$ sudo ipmitool lan print

 

image.png

Or

Run the Command with System

S5200# system "sudo ipmitool lan print"
Sample


 

In below samples, we are demonstrating the examples by logging to system bash. You can log in to system bash or run command from system in OS10 as per your choice.

 
 

How to View BMC Interface


Use command "sudo ipmitool lan print"



Sample output.
Note: the IP Address Source is DHCP Address (IP address is obfuscated in this example)

image.png


 

How to Disable BMC Interface


Run the command "sudo ipmitool raw 0x32 0x71 0 0 0"



To verify use "sudo ipmitool lan print"




Sample output.
Note: the IP Address Source is Unspecified




 

How to Enable BMC Interface


Run the command "sudo ipmitool raw 0x32 0x71 0 0 3"




Affected Products

PowerSwitch S5212F-ON, PowerSwitch S5224F-ON, PowerSwitch S5232F-ON, PowerSwitch S5248F-ON, PowerSwitch S5296F-ON
Article Properties
Article Number: 000184613
Article Type: How To
Last Modified: 10 Nov 2022
Version:  2
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