IPMI: LAN Parameter Data does not match

The error LAN Parameter Data does not match! Write may have failed. happens due to prohibited write/change of IPMI/BMC parameters.

The prohibition applied when in Section [LANCHANNELS] the parameter LANFailOver equals enable. To be able to change network settings of IPMI, this parameter should be set to disable to the time of change. Here is how to do that correctly:

syscfg /lfo disable
ipmitool lan set 1 access off
ipmitool lan set 1 ipsrc dhcp
ipmitool lan set 1 access on
syscfg /lfo enable

This example changes the IP source to DHCP. Other settings can be added too.

Interesting: the reason Firmware upgrade helped Lauer to solve the issue seems in LanFailover disabled by default in that particular version of the firmware.

syscfg is a free tool to be downloaded and used.

So, the problem was an old firmware on the supermicro board. After upgrading the hardware, the problem disappeared.