weird DELL's IPMI (or IDRAC, whatever)

the –o intelplus is an additional command line option / OEM specifier. Please try it together with the other options, e.g.

ipmitool –I lanplus –U user –P password –H host –o inteloem mc info

should give you the same information as with an IPMI 1.5 connection.

ipmitool –I lan –U user –P password –H host –o inteloem mc info

If this works you have RMCP+ working and you can try to activate sol

ipmitool –I lanplus –U user –P password –H host –o inteloem sol activate

I'm able to use ipmitool with a remote machine using the 'lan' protocol, but 'lanplus' fails for every command. I'm trying to get SOL working, but I'm having no luck with lanplus at all:

ipmitool -v -I lanplus -E -H 10.0.40.240 -U admin lan print

Error in open session response message : insufficient resources for session

Error: Unable to establish IPMI v2 / RMCP+ session

I can ping the remote BMC with both ipmiping and rmpcping

The machine is a Dell CS23, the BMC has IPMI v2. I'm using ipmitool v1.8.12 compiled from source.
I've tried cold resetting the BMC, but it doesn't help.