ipmitool lan print error

[vivan1234567]

When I repeatedly use the ipmitool lan set command to set the MAC address for a period of time, the phenomenon of MAC address setting failure will occur. Then, when I use the ipmitool lan print command to obtain IP information, the following situation will occur. When using the dbus command to query, I will find that the dbus interface of eth0 disappears. What is the reason for this? How do we solve it?