I've having a weird problem. Last week I installed the latest drivers for
my Supermicro IPMI card (the new RMCP drivers), and also installed the
latest Intel NIC drivers for Windows. Now the card won't talk to the
network anymore--no gratuitous ARP being generated, no ARP responses being
generated, and IPMI traffic sent to the card by using a hard-coded ARP
table entry is getting ignored too. Somehow or another the IPMI card and
the Intel NICs have gotten disconnected from each other.

I put Linux on another partition, and ipmitool via the openipmi drivers
shows that the card is operating correctly. The LAN channel is showing up
fine, the users are fine, everything looks good from ipmitool. The only
problem is that no network I/O is making it into the card. This is true
regardless of the host OS in use (or not in use for that matter); nothing
makes it into the card if I'm running Windows, Linux, or just sitting at
the BIOS, or if the machine is powered off.

My suspicion here is that the Intel drivers did something to the NICs or
the management interface which is keeping the IPMI card from talking to
the card (Intel loves management interfaces and they may have installed an
SMBUS driver or the like as part of the 10.4 driver installation). I'm not
getting anywhere with supermicro support in this area so I need to tackle
this from the other direction if possible.

In short, is there a way for ipmitool to force the BMC to generate network
traffic? If that succeeds then the problem may expose itself. If it fails
then the error may shed light on where the problem is.

Thanks

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/

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