iDrac not accepting IPMI logins

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http://serverfault.com – I've got a few iDracs configured to be logged in to their IPMI interfaces via IPMITool. However, I have one iDrac that's just being difficult: user@host:~$ ipmitool -H -U root -P calvin chassis status Error: Unable to establish LAN session Error sending Chassis Status command The iDrac doesn't even show a login attempt in its GUI, and according to a packet capture, no response is ever sent by the iDrac. Where can I go from here? As far as I'm aware, there's no firewall on an iDrac, and the iDrac is on the same switched network as the host I'm trying to connect from, so there (HowTos)