Date: Sat, 10 Jul 2004 10:10:42 +0300 From: Danny Braniss <danny@cs.huji.ac.il> To: Doug White <dwhite@gumbysoft.com> Cc: FreeBSD current mailing list <current@FreeBSD.org> Subject: Re: ethercons updated for -CURRENT Message-ID: <20040710071043.57C6043D1F@mx1.FreeBSD.org> In-Reply-To: Message from Doug White <dwhite@gumbysoft.com> <20040709184308.A60026@carver.gumbysoft.com>
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> 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
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