[mrtg] Re: MRTG on a machine with 2 ethernet cards

Chiara Sannitz kler at bluemail.ch
Thu Mar 18 09:37:42 MET 2004

Thanks for the reply.
I think that I didn't expose my problem very well, sorry.
I've tried what you proposed but it didn't solved it (I've done it with cfgmaker
and tried --ifref=eth, --ifref=ip, ...).

The problem is not the machine on the local network that I want to monitor,
but the one on which I installed mrtg. This machine has 2 ethernet cards
(with 2 IP) and I don't know how to tell MRTG which one it should use.
(For example I also had to install ntop and ethereal and both allowed me
to set the interface that had to be used (through some parameters or through
the gui)).

I hope it is a bit more clear,
thanks for any advice


>-- Messaggio originale --
>From: William Owen <William.Owen at ProfilesInternational.com>
>To: mrtg at list.ee.ethz.ch
>Subject: [mrtg] Re: MRTG on a machine with 2 ethernet cards
>Date: Wed, 17 Mar 2004 08:45:10 -0600
>Windows has a tendency to change the interface indexes when you change the
>IP configuration (Adding a second card would do this).  You might consider
>monitoring by MAC address or IP address instead of interface index.
>You probably have
>  Target[NetInterface]: 1:community at host (uses interface index)
>Try using this
>  Target[NetInterface]: !##-##-##-##-##-##:community at host (uses the MAC
>address of the network card)
>##-##-##-##-## is the physical address of the network card.  If you are
>running winXP (any flavor) you would run 'IPConfig /all' from the command
>line and look for the Physical Address entry.

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