[ First - *please* don't mail me privately, without copying
any responses to the mailing list. I don't have the time
or inclination to offer private, unpaid, SNMP consultancy.
Keep discussions to the list, where others can both learn
and offer advice. Thanks. ]
2008/6/11 Thomas Bonham <[EMAIL PROTECTED]>:
>>> The only other big thing that I need to figure out how to do is tell it
>>> to just work one little part of something. As a example just have it
>>> work "system"
>>>
>>
>> There are two aspects to this:
>> - how to tell it where to start
>> - how to tell it where to stop
>>
>>
>> You can specify a starting point when you create the initial
>> Varbind object. Instead of simply
>>
>> $vb = new SNMP::Varbind();
>> try
>> $vb = new SNMP::Varbind(["system"]);
>>
>> Telling it where to stop is handled by the termination condition
>> at the end of the look. The initial code fragment I posted used
>>
>>
>
> This part I don't get. I does it matter if I put the "system" mib in the
> "[]" because of the fact it will still go on after the system mib is out.
Yes - because the ["system"] bit is concerned with where the
walk *starts*, not where it stops.
Try running this script with ["system"] and look at the first two or
three lines of output. Then change the script to use ["ifTable"]
and run it again. You should see that the output begins at
(or shortly after) the specified point.
But this is *only* concerned with the starting point.
It has no effect on when the walk ends.
That's covered by the next bit of my earlier response:
>> do {
>> ...
>> } until ($sess->{ErrorNum});
>>
>> which keeps going until it reaches the end.
>> Try something like:
>>
>> do {
>> ...
>> } until (${$vb}[0] !~ /^sys/ );
>>
>> which will print the system group only.
Note the change to the exit condition here.
> So say to walk "ipAdEntAddr" to get the ip address on my computers. What I
> would have to do is to look for where it start and where it ends?
You would specify where it starts using
$vb = new SNMP::Varbind(["ipAdEntAddr"]);
You would specify where it ends by putting a suitable test
in the "until" check above.
> I do just the basic idea and I will problem try and rework it into a while
> loop because I think it will be simply easer to look for the start and the
> stop of some of the "mib" that I'm going to be using.
>
> Also I do plain on sharing this function when I get it done.
>
> Thanks for all of the help and know that this isn't like most question that
> I see through this group.
Dave
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