IBM IMM is a Planned vendor for ipmideck.
Steps
Open the IMM2 web interface
In a browser, navigate to the IMM2 IP address and log in. The default credentials are
USERID / PASSW0RD (note the zero in “PASSW0RD”). Change them immediately
if they are still in use.

Open Network Protocols
Navigate to Network Protocols — typically under IMM Management → Network or
Configuration → Network Protocols.

Enable the IPMI LAN interface
In the Network Protocols section, find IPMI over LAN (or the IPMI protocol
setting) and enable the IPMI LAN interface.

Ensure an IPMI user ID exists
IBM’s documentation notes: “If no IPMI User IDs have been configured by the CMM, the
network port associated with the IPMI protocol will be closed.” Make sure at least one
IPMI user ID is configured, or the LAN port stays closed.
Flag for review: the IMM2 web-UI path varies by firmware version, and IBM’s BMC
documentation is sparse online. The full reference is the
IMM2 Configuration User’s Guide (PDF).
Validate every step against real hardware before relying on this guide.