[mrtg] Re: Monitoring via MAC as opposed to IP

Larry Sheldon lsheldon at creighton.edu
Tue Oct 5 20:30:47 MEST 1999

> I searched the archives and web site, and couldn't seem
> to see this addressed; is it possible to monitor a device
> via MAC rather than IP? We have some switches here that don't
> have IPs, and I am being told to try to find a way to monitor
> them via their MAC addresses. Any suggestions?

I'd hate to be confused with somebody who actually knows what they are
talking about, but I think the answer is "not with SNMP", since SNMP
is an IP protocol.

Some of our network equipment alleges that it speaks IPX-SPX ("Novell")
and some (the same ones, in some cases) allege that they speak LAT--but
I've never used that facility.

If there are routers involved, it is going to have to be a protocol the
routers speak, since MAC addresses (generally speaking) don't cross
routers in any useful way.
.                                                                       .
- L. F. (Larry) Sheldon, Jr.                                            -
. Unix Systems and Network Administration                               .
- Creighton University Computer Center-Old Gym                          -
. 2500 California Plaza                                                 .
- Omaha, Nebraska, U.S.A.  68178       Two identifying characterstics   -
. lsheldon at creighton.edu                  of System Administrators:     .
- 402 280-2254 (work)                Infallibility, and the ability to  -
. 402 681-4726 (cellular)               learn from their mistakes.      .
- 402 332-4622 (residence)                                              -
. http://www.creighton.edu/~lsheldon    Adapted from Stephen Pinker     .

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