is there a way to get/set opaque values? For instance here's a few s

way to get opaque data ? about easysnmp HOT 3 OPEN

easysnmp commented on May 16, 2024

way to get opaque data ?

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Comments (3)

samibrahiem commented on May 16, 2024

I am facing the same problem, when I try getting Opaque type OID, I only get the tag. The rest of the values (iid,val and type) are set to "None". Is there a way to read these OIDs through EasySNMP?

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cmpetty commented on May 16, 2024

i never found a way through easysnmp to get/set opaques.

i used pysnmp to get them, but then had to covert them .. here's a sample:

from pysnmp.entity.rfc3413.oneliner import cmdgen 

cmdGen = cmdgen.CommandGenerator()
     cmdgen.UdpTransportTarget((crateip, 161)),
                                                                            '1.3.6.1.4.1.19947.1.3.2.1.12', #outputCurrent
                                                                            '1.3.6.1.4.1.19947.1.3.2.1.10', #outputVoltage
                                                                            '1.3.6.1.4.1.19947.1.3.2.1.7', #outputMeasurementCurrent
                                                                            )

        currdata = []
        currtime = time.time()

        for var in varBinds:
            for sv in var:
                oidsplit = sv[0].getOid().prettyPrint().split('.')
                chanidx = oidsplit[-1]
                oid_noidx = '.'.join(oidsplit[:-1])
                name = mibLUT[oid_noidx]

                if re.search('opaque',sv[-1].prettyPrintType(),re.IGNORECASE):
                    outval = struct.unpack('>f',sv[-1].asOctets()[3:])[0]
                else:
                    outval = sv[-1]._value
                currdata.append([currtime, name, outval, chanidx ])

        thisdf = pd.DataFrame(currdata,columns=['measurementTime','measurementType','measurementValue','channel'])

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samibrahiem commented on May 16, 2024

Thank you for sharing Chris! :)

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