Multiple connection result in Error: Unable to establish IPMI v2 /RMCP+ session #30

manolo-mm commented 2024年02月29日 15:11:48 +01:00

Describe the bug
Sending requests to multiple BMCs via LAN results in error message "Error: Unable to establish IPMI v2 /RMCP+ session". The same occurred if I try to use multiple instances of IMPItool.

IPMITOOL Version

1.8.19

To Reproduce
I'm using a script to open a connection via lanplus e.g. ipmitool -I -H -U -P power

Doing this on one only on BMC IP is working fine. If I use this script on multiple IPs or with multiple instances of the script it will result in "Error: Unable to establish IPMI v2 /RMCP+ session". I tried to use the script with timeouts so no that the command won't have collisions or won't hit internal timeouts but ultimately it won't work either.

Expected behavior
A possibility to run IMPItool to multiple endpoints via LAN connection.

**Describe the bug** Sending requests to multiple BMCs via LAN results in error message "Error: Unable to establish IPMI v2 /RMCP+ session". The same occurred if I try to use multiple instances of IMPItool. **IPMITOOL Version** 1.8.19 **To Reproduce** I'm using a script to open a connection via lanplus e.g. ipmitool -I -H <ip> -U <user> -P <PW> power <command> Doing this on one only on BMC IP is working fine. If I use this script on multiple IPs or with multiple instances of the script it will result in "Error: Unable to establish IPMI v2 /RMCP+ session". I tried to use the script with timeouts so no that the command won't have collisions or won't hit internal timeouts but ultimately it won't work either. **Expected behavior** A possibility to run IMPItool to multiple endpoints via LAN connection.

AlexanderAmelkin commented 2025年11月11日 14:31:33 +01:00

ipmitool itself can not communicate to multiple targets at once. When you run the program it performs its task and ends completely, with all its resources freed by the OS kernel. There is no way one invocation of ipmitool can affect subsequent invocations.

Hence, the problem you're experiencing doesn't sound like an ipmitool bug. Sorry.

`ipmitool` itself can not communicate to multiple targets at once. When you run the program it performs its task and ends completely, with all its resources freed by the OS kernel. There is no way one invocation of `ipmitool` can affect subsequent invocations. Hence, the problem you're experiencing doesn't sound like an `ipmitool` bug. Sorry.