From: bulleid@ku.gro.lioff
In message , Jim Jackson
writes
>On 2025-02-17, Adrian wrote:
>> I'm trying to access a TP link access point to get some basic data from
>> it.
>>
>> According to TP Link, I need the rfc1213 mib, which I've downloaded and
>> put in my ~/.snmp/mibs directory
>>
>> However :
>>
>> $ snmpget -v 1 -Cf -c public $IPADDRESS rfc1213.mib::ifInOctets
>> rfc1213.mib::ifInOctets: Unknown Object Identifier
>>
>> greping on the file shows that I do have entries for ifInOctets.
>>
>> Changing ifInOctets to something else (e.g. Time ticks) gives me the
>> same result, but using the long number (1.3.6.1.2.1.1.3.0) works. As
>> I'm not sure what ifInOctets translates to, I can't readily use the
>> number instead.
>>
>> Having spent half the afternoon rummaging around on the 'net with no
>> clear (to me) answer, I'm here.
>>
>> Suggestions on where to continue welcomed.
>>
>
>Yes SNMP can be a pain. The info in that mib often is a table of values,
>one per interface, and you need to know the interface table index to get
>one value.
>
>However you can get all the table in one go by doing an snmpwalk. It a
>long time since I did snmp monitoring - I have written C-code to gather
>and display interface data stats, but the numbers are not at my finger
>tips any more. However I googled and got the number string
>
> 1.3.6.1.2.1.2.2.1.10
>
>so try
>
> snmpwalk -v1 -c public $IPadd 1.3.6.1.2.1.2.2.1.10
>
>Here's what my VDSL router gave back ...
>
>IF-MIB::ifInOctets.49 = Counter32: 0
>IF-MIB::ifInOctets.50 = Counter32: 1622068159
>IF-MIB::ifInOctets.51 = Counter32: 0
>IF-MIB::ifInOctets.52 = Counter32: 1989775457
>IF-MIB::ifInOctets.53 = Counter32: 3244444578
>IF-MIB::ifInOctets.54 = Counter32: 3582643404
>IF-MIB::ifInOctets.55 = Counter32: 46130557
>IF-MIB::ifInOctets.56 = Counter32: 3610089600
>IF-MIB::ifInOctets.1000 = Counter32: 0
>IF-MIB::ifInOctets.1001 = Counter32: 0
>IF-MIB::ifInOctets.1002 = Counter32: 0
>IF-MIB::ifInOctets.1003 = Counter32: 0
>
>and if you want the mib numbers ...
>
> snmpwalk -On -v1 -c public $IPadd 1.3.6.1.2.1.2.2.1.10
>.1.3.6.1.2.1.2.2.1.10.49 = Counter32: 0
>.1.3.6.1.2.1.2.2.1.10.50 = Counter32: 1622073446
>.1.3.6.1.2.1.2.2.1.10.51 = Counter32: 0
>.1.3.6.1.2.1.2.2.1.10.52 = Counter32: 1989775457
>.1.3.6.1.2.1.2.2.1.10.53 = Counter32: 3244454443
>.1.3.6.1.2.1.2.2.1.10.54 = Counter32: 3582665247
>.1.3.6.1.2.1.2.2.1.10.55 = Counter32: 46131353
>.1.3.6.1.2.1.2.2.1.10.56 = Counter32: 3610126193
>.1.3.6.1.2.1.2.2.1.10.1000 = Counter32: 0
>.1.3.6.1.2.1.2.2.1.10.1001 = Counter32: 0
>.1.3.6.1.2.1.2.2.1.10.1002 = Counter32: 0
>.1.3.6.1.2.1.2.2.1.10.1003 = Counter32: 0
>
>
>And to dump all the interface numbers is all the gory details try ...
>
> snmpwalk -v1 -c public O 1.3.6.1.2.1.2.2.1
>
> or add -On for the number numbers.
>
>Happy playing it can be quite fun and often very frustrating!
>
>Jim
>
Thanks for the reply.
Trying that I get :
snmpwalk -v1 -c public $IPadd 1.3.6.1.2.1.2.2.1.10
iso.3.6.1.2.1.2.2.1.10.1 = Counter32: 480
iso.3.6.1.2.1.2.2.1.10.2 = Counter32: 0
iso.3.6.1.2.1.2.2.1.10.3 = Counter32: 0
iso.3.6.1.2.1.2.2.1.10.4 = Counter32: 0
iso.3.6.1.2.1.2.2.1.10.5 = Counter32: 0
iso.3.6.1.2.1.2.2.1.10.6 = Counter32: 47834339
iso.3.6.1.2.1.2.2.1.10.7 = Counter32: 28162230
iso.3.6.1.2.1.2.2.1.10.8 = Counter32: 21747742
iso.3.6.1.2.1.2.2.1.10.9 = Counter32: 0
iso.3.6.1.2.1.2.2.1.10.10 = Counter32: 0
and
snmpwalk -On -v1 -c public $IPadd 1.3.6.1.2.1.2.2.1.10
.1.3.6.1.2.1.2.2.1.10.1 = Counter32: 480
.1.3.6.1.2.1.2.2.1.10.2 = Counter32: 0
.1.3.6.1.2.1.2.2.1.10.3 = Counter32: 0
.1.3.6.1.2.1.2.2.1.10.4 = Counter32: 0
.1.3.6.1.2.1.2.2.1.10.5 = Counter32: 0
.1.3.6.1.2.1.2.2.1.10.6 = Counter32: 47855251
.1.3.6.1.2.1.2.2.1.10.7 = Counter32: 28168496
.1.3.6.1.2.1.2.2.1.10.8 = Counter32: 21766531
.1.3.6.1.2.1.2.2.1.10.9 = Counter32: 0
.1.3.6.1.2.1.2.2.1.10.10 = Counter32: 0
Adrian
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