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Re: Problems with IPMI and wm? sharing a physical Ethernet port

On Sun, Jun 24, 2012 at 07:58:19PM +0200, Jarle Greipsland wrote:
> Hi,
> I recently installed NetBSD/amd64 -current on a system with a
> SuperMicro main board (X7SPA-HF) with an Intel Atom D525 CPU.
> The system has an integrated Baseboard Management Controller (not
> an add-on module) that supports the IPMI protocol.  The services
> of the BMC may be accessed from another computer over IP through
> one of the on-board Ethernet ports (wm0 in NetBSD).  I have used
> ipmitool from pkgsrc for this.  As long as NetBSD has not booted
> yet (after power-on) this works fine.  Once NetBSD has booted, I
> can no longer communicate with the BMC (although for some reason
> it still seems to support ARPs).  As far as I can tell from the
> documentation, the BMC and whatever host operating system is used
> should be able to share the Ethernet port (on various web sites
> this is called sideband mode).  The host Ethernet controller and
> the BMC each have their own MAC addresses.  It's not clear to me
> whether the board has some kind of switch hardware, or the two
> Ethernet controllers just share the PHY hardware.

Do you have some media settings in ifconfig.wm0 ?

On systems with ethernet shared by bmc, I avoid touching the interface
from the system (there is usually a second ethernet port and I use this one).
Now I request a separate ethernet port for management.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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