Re: ethercons updated for -CURRENT

From: Danny Braniss <danny_at_cs.huji.ac.il>
Date: Sat, 10 Jul 2004 10:10:42 +0300
> On Fri, 9 Jul 2004, Bjoern A. Zeeb wrote:
> 
> > from what I had been told:
> > Distributed Management Task Force (DMTF, http://www.dmtf.org/) is
> > working on a standard called "Remote Management Control Protocol" (RMCP).
> > One part of this work is SOL (Serial over LAN) which is based upon RFC2217.
> >
> > Perhaps this will be the way to go in the future.
> 
> This got integrated into IPMI 2.0, and is available on shipping hardware.
> If I can ever locate some of said hardware, I'll try to implement a tool
> to attach to it.  In the interim the vendor usually provides a Windows
> tool.
> 

The nice thing about IPMI/SOL is that one can 'talk' to the board
via the ethernet without intervention of the local OS, so that, in theory
at least the 'panic message' is also available - there is a BMC that
highjacks UDP packets to port 623.

i say 'in theory' since i have not seen this working, the boards i have,
Intel SE7501WV2 have 2 serial ports, and with some older BIOS i was
able to get both the BIOS console and FreeBSD com to go via com1/cuaa0.

though they are IPMI 1.5, so far i can via the ethernet do basic management
(power off, reset, get logs) but im still trying to figure out the Serial
Over Lan part.

There is a client that runs under windows that should allow connection
via SOL to the console - im still waiting for the intel rep. to show me how,
since i keep getting '.. not supported'.

> The RMCP+/IPMI SOL does not use Telnet as an underlying protocol so it
> doesn't use RFC2217.

the Windows client works as a telnet proxy: on a client one types
telnet localhost 623, and then one is promped for host/user/password.

Sorry if all this seems confusing, try to make sence from the IPMI 1.5 Specs :-)
(so far the 2.0 seems more of the same, with some attempt to make all
this more secure - by obscurity.

The upshot off all this is, if the SOL works, then we can kiss KVM away, and
as Robert said, just power and ethernet and you are set.

danny
Received on Sat Jul 10 2004 - 05:10:43 UTC

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