For all the following examples, the selected channel is 1. This may change depending of your system.

ipmitool lan print

Set static IP

ipmitool lan set 1 ipsrc static
ipmitool lan set 1 ipaddr 192.168.1.12
ipmitool lan set 1 netmask 255.255.255.0
ipmitool lan set 1 defgw ipaddr 192.168.1.1

Set dynamic IP

ipmitool lan set 1 ipsrc DHCP

Set VLAN

ipmitool lan set 1 vlan id 12

My change is done but the IPMI is not applying it!

On old systems, a reboot of the management controller (abreviated mc) needs to be rebooted in order to apply the new configuration.

ipmitool mc reset cold

Also, if the modification only impact VLAN settings, a simple raw command can do the trick (source).

ipmitool raw 0x0c 1 1 0 0

Set a user/pass

ipmitool user set name $USER_ID $USERNAME
ipmitool user set password $USER_ID $PASSWORD

Use the IPMI remotely

Just replace the ipmitool command with: ipmitool -I lanplus -H $HOST_IP -U $USERNAME -P $PASSWORD

References: