> >From this MIB i want to monitor the proCurrentTemp variable, but what
> should i give to MRTG?
> I'm using a 2.8.x version and the above MIB could successfully loaded into
> MRTG but i cannot access the wanted info.
> 

There are programs that can read in these files and allow you to
view them conveniently. If you cannot find one of those, you could
do it manually.

The MIB is just a tree-like structure. There are nodes and branches.
What you want to know is how to monitor a variable. This is just an
endpoint of the tree. Follow the branches up until you reach the top
and write the branches down from right to left.

Example from a MIB-file (which is NOT a mib but rather a sub-tree):

Inside the RFC1213 mib-file you find "ifInOctets".

          ifInOctets OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The total number of octets received on the
                      interface, including framing characters."
              ::= { ifEntry 10 }

You would like to monitor this variable (ifInOctets). You see that it
ends in  "ifEntry.10". Look up "ifEntry" and find out that:

          ifEntry OBJECT-TYPE
              SYNTAX  IfEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An interface entry containing objects at the
                      subnetwork layer and below for a particular
                      interface."
              INDEX   { ifIndex }
              ::= { ifTable 1 }

it is "ifTable.1" so you know "ifTable.1.10". Look up ifTable:

          ifTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF IfEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A list of interface entries.  The number of
                      entries is given by the value of ifNumber."
              ::= { interfaces 2 }

to know "interfaces.2.1.10". Browse up in the file to find

          interfaces   OBJECT IDENTIFIER ::= { mib-2 2 }

so you know "mib-2.2.2.1.10".

The node "mib-2" is (after a while perhaps) known from memory to be

iso.org.dod.internet.mgmt.mib-2 or 1.3.6.1.2.1 so the complete OID
is 1.3.6.1.2.1.2.2.1.10 and you only have to append an instance.
You can use the numbers inside MRTG by doing something like:

Target[x]: 1.3.6.1.2.1.2.2.1.10.1&1.3.6.1.2.1.2.2.1.16.1:public@router


It is not a nice job to do and if possible you should use a computer
to do the job, but it can be done. It won't be easy the first few times
so try to find some known values from SNMP_Util.pm to start with.

Regards,
Alex

--
* To unsubscribe from the mrtg mailing list, send a message with the
  subject: unsubscribe to mrtg-request@list.ee.ethz.ch
* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg