pysnmp-users — PySNMP usage issues

Re: [pysnmp-users] Problem observed in new mib loading

[Ilya E. <il...@gl...>]

Looking at VM-MIB, I do not see vmNumber object there:

    http://mibs.snmplabs.com/asn1/VM-MIB

Do you have a newer MIB?

Also, given you query an existing object, you should query MIB object
rather than MIB object instance:

    ObjectType(ObjectIdentity('VM-MIB', 'vmNumber',
0).addAsn1MibSource('file:///usr/share/snmp',
'http://mibs.snmplabs.com/asn1/@mib@')))


On 12/15/2016 12:17 PM, riv...@wi... wrote:
> Hi,
> 
>  
> 
> I have tried this below one.
> 
>  
> 
> #!/usr/bin/python
> 
> from pysnmp.hlapi import *
> 
>  
> 
> errorIndication, errorStatus, errorIndex, varBinds = next(
> 
>     getCmd(SnmpEngine(),
> 
>            CommunityData('public'),
> 
>            UdpTransportTarget(('10.154.19.88', 161)),
> 
>            ContextData(),
> 
>            ObjectType(ObjectIdentity('VM-MIB',
> 'vmNumber').addAsn1MibSource('file:///usr/share/snmp',
> 
>                                                                                 
> 'http://mibs.snmplabs.com/asn1/@mib@')))
> 
> )
> 
>  
> 
> if errorIndication:
> 
>     print(errorIndication)
> 
> elif errorStatus:
> 
>     print('%s at %s' % (errorStatus.prettyPrint(),
> 
>                         errorIndex and varBinds[int(errorIndex) - 1][0]
> or '?'))
> 
> else:
> 
>     for varBind in varBinds:
> 
>         print(' = '.join([x.prettyPrint() for x in varBind]))
> 
>  
> 
>  
> 
> VM-MIB::vmNumber = No Such Object currently exists at this OID
> 
>  
> 
> Thanks & Regards,
> 
> Riva.
> 
>  
> 
> *From:*Rivarani Roy
> *Sent:* Thursday, December 15, 2016 3:48 PM
> *To:* 'Ilya Etingof' <il...@gl...>
> *Cc:* pys...@li...
> *Subject:* RE: [pysnmp-users] Problem observed in new mib loading
> 
>  
> 
> Hi,
> 
>  
> 
> I followed the below steps but got the same result.
> 
> Currently using the latest pysnmp but didn’t get any success.
> 
>  
> 
> Thanks & Regards,
> 
> Riva.
> 
>  
> 
> *From:*Ilya Etingof [mailto:il...@gl...]
> *Sent:* Thursday, December 15, 2016 2:26 PM
> *To:* Rivarani Roy <riv...@wi... <mailto:riv...@wi...>>
> *Cc:* pys...@li...
> <mailto:pys...@li...>
> *Subject:* Re: [pysnmp-users] Problem observed in new mib loading
> 
>  
> 
> ** This mail has been sent from an external source **
> 
> Try adding `lookupNames=True`, `lookupValues=True` as shown here:
> 
>  
> 
>  
>   http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/manager/cmdgen/getnext-v2c-with-mib-resolution.html
> 
>  
> 
> But even better upgrade to the latest pysnmp and you could skip the
> explicit mibdump-based conversion step.
> 
>  
> 
>  
>   http://pysnmp.sourceforge.net/examples/hlapi/asyncore/sync/manager/cmdgen/walking-operations.html
> 
>  
> 
>  
> 
>     On 15 Dec 2016, at 07:11, <riv...@wi...
>     <mailto:riv...@wi...>> <riv...@wi...
>     <mailto:riv...@wi...>> wrote:
> 
>      
> 
>     Hi,
> 
>      
> 
>     I am trying to automate VM-MIB by using pysnmp.
> 
>      
> 
>     1.       Generated VM-MIB.py file from VM-MIB.txt by mibdump.py 
>     --debug=all --mib-borrower=/usr/share/snmp/mibs/   VM-MIB.txt
> 
>     2.       Tried  loadmib and addmibsource modules to load VM-MIB.
> 
>      
> 
>     Its loading the Object from VM-MIB as I am able to see the output
>     but the MIB name is showing as SNMPv2-SMI.
> 
>     Is it the right procedure  to do or do we have any other process.
> 
>      
> 
>     #!/usr/bin/python
> 
>     from pysnmp.entity.rfc3413.oneliner import cmdgen
> 
>      
> 
>     cmdGen = cmdgen.CommandGenerator()
> 
>      
> 
>     errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.nextCmd(
> 
>         cmdgen.CommunityData('public'),
> 
>         cmdgen.UdpTransportTarget(('10.154.19.88', 161)),
> 
>         #cmdgen.MibVariable('VM-MIB', 'vmEntry').loadmibs(),
> 
>         lexicographicMode=True, maxRows=100,
> 
>         ignoreNonIncreasingOid=True
> 
>     )
> 
>     #print varBindTable
> 
>      
> 
>     # Check for errors and print out results
> 
>     if errorIndication:
> 
>         print(errorIndication)
> 
>     else:
> 
>         if errorStatus:
> 
>             print('%s at %s' % (
> 
>                 errorStatus.prettyPrint(),
> 
>                 errorIndex and varBindTable[int(errorIndex)-1] or '?'
> 
>                 )
> 
>             )
> 
>         else:
> 
>             #for name, val in varBindTable:
> 
>                #print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
> 
>                #print (varBindTable[0][0].prettyPrint() +' = '+
>     varBindTable[0][1].prettyPrint())
> 
>             len_value= len(varBindTable)
> 
>             output = open('template.txt','a')
> 
>             for i in range(0,len_value):
> 
>                 output.write(varBindTable[i][0].prettyPrint())
> 
>                 output.write("\n")
> 
>             output.close()
> 
>      
> 
>      
> 
>      
> 
>     Getting this below output.
> 
>      
> 
>      
> 
>     SNMPv2-SMI::mib-2.23456.1.4.1.2.2 = VM6  ----------- it should
>     represent as VM-MIB instead of SNMPV2-SMI
> 
>     SNMPv2-SMI::mib-2.23456.1.4.1.2.3 = VM1
> 
>     SNMPv2-SMI::mib-2.23456.1.4.1.2.4 = VM2
> 
>     SNMPv2-SMI::mib-2.23456.1.4.1.2.5 = VM3
> 
>     SNMPv2-SMI::mib-2.23456.1.4.1.2.6 = VM4
> 
>      
> 
>      
> 
>      
> 
>     Thanks & Regards,
> 
>     Riva.
> 

Re: [pysnmp-users] Problem observed in new mib loading

[<riv...@wi...>]

Hi,

I have tried this below one.

#!/usr/bin/python
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    getCmd(SnmpEngine(),
           CommunityData('public'),
           UdpTransportTarget(('10.154.19.88', 161)),
           ContextData(),
           ObjectType(ObjectIdentity('VM-MIB', 'vmNumber').addAsn1MibSource('file:///usr/share/snmp',
                                                                                 'http://mibs.snmplabs.com/asn1/@mib@')))
)

if errorIndication:
    print(errorIndication)
elif errorStatus:
    print('%s at %s' % (errorStatus.prettyPrint(),
                        errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
    for varBind in varBinds:
        print(' = '.join([x.prettyPrint() for x in varBind]))


VM-MIB::vmNumber = No Such Object currently exists at this OID

Thanks & Regards,
Riva.

From: Rivarani Roy
Sent: Thursday, December 15, 2016 3:48 PM
To: 'Ilya Etingof' <il...@gl...>
Cc: pys...@li...
Subject: RE: [pysnmp-users] Problem observed in new mib loading

Hi,

I followed the below steps but got the same result.
Currently using the latest pysnmp but didn't get any success.

Thanks & Regards,
Riva.

From: Ilya Etingof [mailto:il...@gl...]
Sent: Thursday, December 15, 2016 2:26 PM
To: Rivarani Roy <riv...@wi...<mailto:riv...@wi...>>
Cc: pys...@li...<mailto:pys...@li...>
Subject: Re: [pysnmp-users] Problem observed in new mib loading


** This mail has been sent from an external source **
Try adding `lookupNames=True`, `lookupValues=True` as shown here:

    http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/manager/cmdgen/getnext-v2c-with-mib-resolution.html

But even better upgrade to the latest pysnmp and you could skip the explicit mibdump-based conversion step.

    http://pysnmp.sourceforge.net/examples/hlapi/asyncore/sync/manager/cmdgen/walking-operations.html


On 15 Dec 2016, at 07:11, <riv...@wi...<mailto:riv...@wi...>> <riv...@wi...<mailto:riv...@wi...>> wrote:

Hi,

I am trying to automate VM-MIB by using pysnmp.

1.       Generated VM-MIB.py file from VM-MIB.txt by mibdump.py  --debug=all --mib-borrower=/usr/share/snmp/mibs/   VM-MIB.txt
2.       Tried  loadmib and addmibsource modules to load VM-MIB.

Its loading the Object from VM-MIB as I am able to see the output but the MIB name is showing as SNMPv2-SMI.
Is it the right procedure  to do or do we have any other process.

#!/usr/bin/python
from pysnmp.entity.rfc3413.oneliner import cmdgen

cmdGen = cmdgen.CommandGenerator()

errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.nextCmd(
    cmdgen.CommunityData('public'),
    cmdgen.UdpTransportTarget(('10.154.19.88', 161)),
    #cmdgen.MibVariable('VM-MIB', 'vmEntry').loadmibs(),
    lexicographicMode=True, maxRows=100,
    ignoreNonIncreasingOid=True
)
#print varBindTable

# Check for errors and print out results
if errorIndication:
    print(errorIndication)
else:
    if errorStatus:
        print('%s at %s' % (
            errorStatus.prettyPrint(),
            errorIndex and varBindTable[int(errorIndex)-1] or '?'
            )
        )
    else:
        #for name, val in varBindTable:
           #print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
           #print (varBindTable[0][0].prettyPrint() +' = '+ varBindTable[0][1].prettyPrint())
        len_value= len(varBindTable)
        output = open('template.txt','a')
        for i in range(0,len_value):
            output.write(varBindTable[i][0].prettyPrint())
            output.write("\n")
        output.close()



Getting this below output.


SNMPv2-SMI::mib-2.23456.1.4.1.2.2 = VM6  ----------- it should represent as VM-MIB instead of SNMPV2-SMI
SNMPv2-SMI::mib-2.23456.1.4.1.2.3 = VM1
SNMPv2-SMI::mib-2.23456.1.4.1.2.4 = VM2
SNMPv2-SMI::mib-2.23456.1.4.1.2.5 = VM3
SNMPv2-SMI::mib-2.23456.1.4.1.2.6 = VM4



Thanks & Regards,
Riva.
The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

Re: [pysnmp-users] Problem observed in new mib loading

[<riv...@wi...>]

Hi,

I followed the below steps but got the same result.
Currently using the latest pysnmp but didn't get any success.

Thanks & Regards,
Riva.

From: Ilya Etingof [mailto:il...@gl...]
Sent: Thursday, December 15, 2016 2:26 PM
To: Rivarani Roy <riv...@wi...>
Cc: pys...@li...
Subject: Re: [pysnmp-users] Problem observed in new mib loading


** This mail has been sent from an external source **
Try adding `lookupNames=True`, `lookupValues=True` as shown here:

    http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/manager/cmdgen/getnext-v2c-with-mib-resolution.html

But even better upgrade to the latest pysnmp and you could skip the explicit mibdump-based conversion step.

    http://pysnmp.sourceforge.net/examples/hlapi/asyncore/sync/manager/cmdgen/walking-operations.html


On 15 Dec 2016, at 07:11, <riv...@wi...<mailto:riv...@wi...>> <riv...@wi...<mailto:riv...@wi...>> wrote:

Hi,

I am trying to automate VM-MIB by using pysnmp.

1.       Generated VM-MIB.py file from VM-MIB.txt by mibdump.py  --debug=all --mib-borrower=/usr/share/snmp/mibs/   VM-MIB.txt
2.       Tried  loadmib and addmibsource modules to load VM-MIB.

Its loading the Object from VM-MIB as I am able to see the output but the MIB name is showing as SNMPv2-SMI.
Is it the right procedure  to do or do we have any other process.

#!/usr/bin/python
from pysnmp.entity.rfc3413.oneliner import cmdgen

cmdGen = cmdgen.CommandGenerator()

errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.nextCmd(
    cmdgen.CommunityData('public'),
    cmdgen.UdpTransportTarget(('10.154.19.88', 161)),
    #cmdgen.MibVariable('VM-MIB', 'vmEntry').loadmibs(),
    lexicographicMode=True, maxRows=100,
    ignoreNonIncreasingOid=True
)
#print varBindTable

# Check for errors and print out results
if errorIndication:
    print(errorIndication)
else:
    if errorStatus:
        print('%s at %s' % (
            errorStatus.prettyPrint(),
            errorIndex and varBindTable[int(errorIndex)-1] or '?'
            )
        )
    else:
        #for name, val in varBindTable:
           #print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
           #print (varBindTable[0][0].prettyPrint() +' = '+ varBindTable[0][1].prettyPrint())
        len_value= len(varBindTable)
        output = open('template.txt','a')
        for i in range(0,len_value):
            output.write(varBindTable[i][0].prettyPrint())
            output.write("\n")
        output.close()



Getting this below output.


SNMPv2-SMI::mib-2.23456.1.4.1.2.2 = VM6  ----------- it should represent as VM-MIB instead of SNMPV2-SMI
SNMPv2-SMI::mib-2.23456.1.4.1.2.3 = VM1
SNMPv2-SMI::mib-2.23456.1.4.1.2.4 = VM2
SNMPv2-SMI::mib-2.23456.1.4.1.2.5 = VM3
SNMPv2-SMI::mib-2.23456.1.4.1.2.6 = VM4



Thanks & Regards,
Riva.
The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

Re: [pysnmp-users] Problem observed in new mib loading

[Ilya E. <il...@gl...>]

Try adding `lookupNames=True`, `lookupValues=True` as shown here:

    http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/manager/cmdgen/getnext-v2c-with-mib-resolution.html <http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/manager/cmdgen/getnext-v2c-with-mib-resolution.html>

But even better upgrade to the latest pysnmp and you could skip the explicit mibdump-based conversion step.

    http://pysnmp.sourceforge.net/examples/hlapi/asyncore/sync/manager/cmdgen/walking-operations.html <http://pysnmp.sourceforge.net/examples/hlapi/asyncore/sync/manager/cmdgen/walking-operations.html>


> On 15 Dec 2016, at 07:11, <riv...@wi...> <riv...@wi...> wrote:
> 
> Hi,
>  
> I am trying to automate VM-MIB by using pysnmp.
>  
> 1.       Generated VM-MIB.py file from VM-MIB.txt by mibdump.py  --debug=all --mib-borrower=/usr/share/snmp/mibs/   VM-MIB.txt
> 2.       Tried  loadmib and addmibsource modules to load VM-MIB.
>  
> Its loading the Object from VM-MIB as I am able to see the output but the MIB name is showing as SNMPv2-SMI.
> Is it the right procedure  to do or do we have any other process.
>  
> #!/usr/bin/python
> from pysnmp.entity.rfc3413.oneliner import cmdgen
>  
> cmdGen = cmdgen.CommandGenerator()
>  
> errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.nextCmd(
>     cmdgen.CommunityData('public'),
>     cmdgen.UdpTransportTarget(('10.154.19.88', 161)),
>     #cmdgen.MibVariable('VM-MIB', 'vmEntry').loadmibs(),
>     lexicographicMode=True, maxRows=100,
>     ignoreNonIncreasingOid=True
> )
> #print varBindTable
>  
> # Check for errors and print out results
> if errorIndication:
>     print(errorIndication)
> else:
>     if errorStatus:
>         print('%s at %s' % (
>             errorStatus.prettyPrint(),
>             errorIndex and varBindTable[int(errorIndex)-1] or '?'
>             )
>         )
>     else:
>         #for name, val in varBindTable:
>            #print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
>            #print (varBindTable[0][0].prettyPrint() +' = '+ varBindTable[0][1].prettyPrint())
>         len_value= len(varBindTable)
>         output = open('template.txt','a')
>         for i in range(0,len_value):
>             output.write(varBindTable[i][0].prettyPrint())
>             output.write("\n")
>         output.close()
>  
>  
>  
> Getting this below output.
>  
>  
> SNMPv2-SMI::mib-2.23456.1.4.1.2.2 = VM6  ----------- it should represent as VM-MIB instead of SNMPV2-SMI
> SNMPv2-SMI::mib-2.23456.1.4.1.2.3 = VM1
> SNMPv2-SMI::mib-2.23456.1.4.1.2.4 = VM2
> SNMPv2-SMI::mib-2.23456.1.4.1.2.5 = VM3
> SNMPv2-SMI::mib-2.23456.1.4.1.2.6 = VM4
>  
>  
>  
> Thanks & Regards,
> Riva.

[pysnmp-users] Problem observed in new mib loading

[<riv...@wi...>]

Hi,

I am trying to automate VM-MIB by using pysnmp.


1.       Generated VM-MIB.py file from VM-MIB.txt by mibdump.py  --debug=all --mib-borrower=/usr/share/snmp/mibs/   VM-MIB.txt

2.       Tried  loadmib and addmibsource modules to load VM-MIB.

Its loading the Object from VM-MIB as I am able to see the output but the MIB name is showing as SNMPv2-SMI.
Is it the right procedure  to do or do we have any other process.

#!/usr/bin/python
from pysnmp.entity.rfc3413.oneliner import cmdgen

cmdGen = cmdgen.CommandGenerator()

errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.nextCmd(
    cmdgen.CommunityData('public'),
    cmdgen.UdpTransportTarget(('10.154.19.88', 161)),
    #cmdgen.MibVariable('VM-MIB', 'vmEntry').loadmibs(),
    lexicographicMode=True, maxRows=100,
    ignoreNonIncreasingOid=True
)
#print varBindTable

# Check for errors and print out results
if errorIndication:
    print(errorIndication)
else:
    if errorStatus:
        print('%s at %s' % (
            errorStatus.prettyPrint(),
            errorIndex and varBindTable[int(errorIndex)-1] or '?'
            )
        )
    else:
        #for name, val in varBindTable:
           #print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
           #print (varBindTable[0][0].prettyPrint() +' = '+ varBindTable[0][1].prettyPrint())
        len_value= len(varBindTable)
        output = open('template.txt','a')
        for i in range(0,len_value):
            output.write(varBindTable[i][0].prettyPrint())
            output.write("\n")
        output.close()



Getting this below output.


SNMPv2-SMI::mib-2.23456.1.4.1.2.2 = VM6  ----------- it should represent as VM-MIB instead of SNMPV2-SMI
SNMPv2-SMI::mib-2.23456.1.4.1.2.3 = VM1
SNMPv2-SMI::mib-2.23456.1.4.1.2.4 = VM2
SNMPv2-SMI::mib-2.23456.1.4.1.2.5 = VM3
SNMPv2-SMI::mib-2.23456.1.4.1.2.6 = VM4



Thanks & Regards,
Riva.
The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

Re: [pysnmp-users] Custom MIB files

[Jian Li <ji...@le...>]

Ilya,

So PacketPower actually put the MIB file on-line? I am fine to use the local file option for now, and wait for them to get it updated online.
The local file option worked for me. Now I see the modifications in the python file. Thanks a lot for your help.

Thanks,

Jian

-----Original Message-----
From: Ilya Etingof [mailto:il...@gl...]
Sent: Monday, December 5, 2016 3:58 PM
To: Jian Li
Cc: pys...@li...
Subject: Re: [pysnmp-users] Custom MIB files


Jian,

I can replace the on-line version of the MIB file if it is somehow outdated or broken. If you want to use an alternative version locally, just point `mibdump` to your local directory by passing the:

    --mib-source file:///local-directory --mib-source 'http://mibs.snmplabs.com/asn1/@mib@'

option to it. The second --mib-source may be needed for `mibdump` to pick up dependent MIBs from the web server if you do not have them locally.

On 12/05/2016 09:50 PM, Jian Li wrote:
> Ilya,
>
> Some more info for the mibdump.py issue I am experiencing.
>
> This is the MIB I am trying to modify with a local MIB text file,
> /mibs.snmplabs.com/asn1/PACKETPOWER-EG4-MIB/.
> When I do /mibdump.py
> --rebuild///local-directory/PACKKETPOWER-EG4-MIB.txt/ it always takes
> the content from the online PACKETPOWER-EG4-MIB without any
> modifications in my local MIB text file ( I was trying to add more
> constraint values for channelId in that file) to the generated
> ~/.pysnmp/mibs/PACKETPOWER-EG4-MIB.py
>
> So, how did /PACKETPOWER-EG4-MI/ get online? Is it possible to either
> delete or modify it?
>
> Thanks,
>
> Jian
>
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...]
> Sent: Saturday, December 3, 2016 7:39 AM
> To: Jian Li
> Cc: pys...@li...<mailto:pys...@li...>
> Subject: Re: [pysnmp-users] Custom MIB files
>
>
> My guess is that once you compiled MIB into .py form, you should make
> pysnmp using it by either:
>
> *  moving your .py MIB into ~/.pysnmp/mibs or
> * configuring pysnmp to pick up .py MIBs from a non-default location
> (http://pysnmp.sourceforge.net/docs/api-reference.html#pysnmp.smi.rfc1902.ObjectIdentity.addMibSource).
>
> MIB files at snmplabs.com serve as a shared, community repository of
> originally ASN.1 MIB files, there should be no need to remove them.
>
>> On 02 Dec 2016, at 22:41, Jian Li <ji...@le... <mailto:ji...@le...<mailto:ji...@le...%20<mailto:ji...@le...>>> wrote:
>>
>> Ilya,
>>
>> I modified my mib file and did a "mibdump.py --rebuild" with the
>> modified mib file. But the generated python file did not take the
>> modifications ( I am using ubuntu14.04 with python 2.7). Do I need to
>> somehow delete the one online as well,
>> http://mibs.snmplabs.com:80/asn1/PACKETPOWER-EG4-MIB
>>
>> Thanks,
>>
>> Jian
>>
>> -----Original Message-----
>> From: Ilya Etingof [mailto:il...@gl...]
>> Sent: Thursday, November 17, 2016 5:45 PM
>> To: Jian Li
>> Cc: pys...@li...<mailto:pys...@li...>
> <mailto:pys...@li...>
>> Subject: Re: [pysnmp-users] Custom MIB files
>>
>>
>> I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:
>>
>>     DisplayString
>>                        FROM RFC1213-MIB
>>
>> for SMIv2 ones:
>>
>>     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
>>                        FROM SNMPv2-TC
>>
>> It compiled successfully.
>>
>> As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:
>>
>>    gen = nextCmd(…)
>>    for rsp in gen:
>>        print(rsp)
>>
>> And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:
>>
>>   http://snmpsim.sourceforge.net/public-snmp-simulator.html
>>
>> Though it does not implement your MIB.
>>
>>> On 17 Nov 2016, at 22:18, Jian Li <ji...@le... <mailto:ji...@le...<mailto:ji...@le...%20<mailto:ji...@le...>>> wrote:
>>>
>>> Ilya,
>>>
>>> Please find the attached MIB file. Thank you very much for your help.
>>>
>>> I was able to use mibdump.py to compile that MIB file to python
>>> modules. There is another question I want to ask you about pysnmp as
>>> well, I did not get any response for the following command, do I do
>>> something obviously wrong? The snmp agent is configured and I was
>>> able to get correct response for ObjectIdentity('SNMPv2-MIB',
>>> 'system')
>>>
>>>  nextCmd(SnmpEngine(),
>>>                                     CommunityData('public', mpModel=1),
>>>                                     UdpTransportTarget(('169.254.81.145', 161)),
>>>                                     ContextData(),
>>>                                     ObjectType(ObjectIdentity('
>>> PACKETPOWER-EG4-MIB, ' packetPower'))
>>>
>>> Thanks,
>>>
>>> Jian
>>>
>>> -----Original Message-----
>>> From: Ilya Etingof [mailto:il...@gl...]
>>> Sent: Thursday, November 17, 2016 3:08 PM
>>> To: Jian Li
>>> Cc: pys...@li...<mailto:pys...@li...>
> <mailto:pys...@li...>
>>> Subject: Re: [pysnmp-users] Custom MIB files
>>>
>>>
>>> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
>>>
>>>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le... <mailto:ji...@le...<mailto:ji...@le...%20<mailto:ji...@le...>>> wrote:
>>>>
>>>> I tried to add the MIB files to a python script, using PySNMP
>>>> addAsn1MibSource(‘file:///path’). However I got the following
>>>> error,
>>>>
>>>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation
>>>> error(s): missing; missing; missing; missing; no module "SNMPv2-SMI"
>>>> in symbolTable at MIB CUSTOM-EG4-MIB
>>>>
>>>> Would really appreciate your help to get it resolved.
>>>>
>>>> Thanks,
>>>>
>>>> Jian
>>> <PACKETPOWER-EG4-MIB>
>>
>
>

Re: [pysnmp-users] Custom MIB files

[Ilya E. <il...@gl...>]

Jian,

I can replace the on-line version of the MIB file if it is somehow
outdated or broken. If you want to use an alternative version locally,
just point `mibdump` to your local directory by passing the:

    --mib-source file:///local-directory --mib-source
'http://mibs.snmplabs.com/asn1/@mib@'

option to it. The second --mib-source may be needed for `mibdump` to
pick up dependent MIBs from the web server if you do not have them locally.

On 12/05/2016 09:50 PM, Jian Li wrote:
> Ilya,
>  
> Some more info for the mibdump.py issue I am experiencing.
>  
> This is the MIB I am trying to modify with a local MIB text file,
> /mibs.snmplabs.com/asn1/PACKETPOWER-EG4-MIB/.
> When I do /mibdump.py
> --rebuild///local-directory/PACKKETPOWER-EG4-MIB.txt/ it always takes
> the content from the online PACKETPOWER-EG4-MIB without any
> modifications in my local MIB text file ( I was trying to add more
> constraint values for channelId in that file) to the generated
> ~/.pysnmp/mibs/PACKETPOWER-EG4-MIB.py
>  
> So, how did /PACKETPOWER-EG4-MI/ get online? Is it possible to either
> delete or modify it?
>  
> Thanks,
>  
> Jian
>  
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...]
> Sent: Saturday, December 3, 2016 7:39 AM
> To: Jian Li
> Cc: pys...@li...
> Subject: Re: [pysnmp-users] Custom MIB files
>  
>  
> My guess is that once you compiled MIB into .py form, you should make
> pysnmp using it by either:
>  
> *  moving your .py MIB into ~/.pysnmp/mibs or
> * configuring pysnmp to pick up .py MIBs from a non-default location
> (http://pysnmp.sourceforge.net/docs/api-reference.html#pysnmp.smi.rfc1902.ObjectIdentity.addMibSource).
>  
> MIB files at snmplabs.com serve as a shared, community repository of
> originally ASN.1 MIB files, there should be no need to remove them.
>  
>> On 02 Dec 2016, at 22:41, Jian Li <ji...@le... <mailto:ji...@le...>> wrote:
>> 
>> Ilya,
>> 
>> I modified my mib file and did a "mibdump.py --rebuild" with the 
>> modified mib file. But the generated python file did not take the 
>> modifications ( I am using ubuntu14.04 with python 2.7). Do I need to 
>> somehow delete the one online as well, 
>> http://mibs.snmplabs.com:80/asn1/PACKETPOWER-EG4-MIB
>> 
>> Thanks,
>> 
>> Jian
>> 
>> -----Original Message-----
>> From: Ilya Etingof [mailto:il...@gl...]
>> Sent: Thursday, November 17, 2016 5:45 PM
>> To: Jian Li
>> Cc: pys...@li...
> <mailto:pys...@li...>
>> Subject: Re: [pysnmp-users] Custom MIB files
>> 
>> 
>> I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:
>> 
>>     DisplayString
>>                        FROM RFC1213-MIB
>> 
>> for SMIv2 ones:
>> 
>>     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
>>                        FROM SNMPv2-TC
>> 
>> It compiled successfully.
>> 
>> As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:
>> 
>>    gen = nextCmd(…)
>>    for rsp in gen:
>>        print(rsp)
>> 
>> And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:
>> 
>>   http://snmpsim.sourceforge.net/public-snmp-simulator.html
>> 
>> Though it does not implement your MIB.
>> 
>>> On 17 Nov 2016, at 22:18, Jian Li <ji...@le... <mailto:ji...@le...>> wrote:
>>> 
>>> Ilya,
>>> 
>>> Please find the attached MIB file. Thank you very much for your help.
>>> 
>>> I was able to use mibdump.py to compile that MIB file to python 
>>> modules. There is another question I want to ask you about pysnmp as 
>>> well, I did not get any response for the following command, do I do 
>>> something obviously wrong? The snmp agent is configured and I was 
>>> able to get correct response for ObjectIdentity('SNMPv2-MIB', 
>>> 'system')
>>> 
>>>  nextCmd(SnmpEngine(),
>>>                                     CommunityData('public', mpModel=1),
>>>                                     UdpTransportTarget(('169.254.81.145', 161)),
>>>                                     ContextData(),
>>>                                     ObjectType(ObjectIdentity(' 
>>> PACKETPOWER-EG4-MIB, ' packetPower'))
>>> 
>>> Thanks,
>>> 
>>> Jian
>>> 
>>> -----Original Message-----
>>> From: Ilya Etingof [mailto:il...@gl...]
>>> Sent: Thursday, November 17, 2016 3:08 PM
>>> To: Jian Li
>>> Cc: pys...@li...
> <mailto:pys...@li...>
>>> Subject: Re: [pysnmp-users] Custom MIB files
>>> 
>>> 
>>> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
>>> 
>>>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le... <mailto:ji...@le...>> wrote:
>>>> 
>>>> I tried to add the MIB files to a python script, using PySNMP 
>>>> addAsn1MibSource(‘file:///path’). However I got the following error,
>>>> 
>>>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation 
>>>> error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" 
>>>> in symbolTable at MIB CUSTOM-EG4-MIB
>>>> 
>>>> Would really appreciate your help to get it resolved.
>>>> 
>>>> Thanks,
>>>> 
>>>> Jian
>>> <PACKETPOWER-EG4-MIB>
>> 
>  
>  

Re: [pysnmp-users] Custom MIB files

[Jian Li <ji...@le...>]

Ilya,

Some more info for the mibdump.py issue I am experiencing.

This is the MIB I am trying to modify with a local MIB text file, mibs.snmplabs.com/asn1/PACKETPOWER-EG4-MIB.
When I do mibdump.py --rebuild /local-directory/PACKKETPOWER-EG4-MIB.txt it always takes the content from the online PACKETPOWER-EG4-MIB without any modifications in my local MIB text file ( I was trying to add more constraint values for channelId in that file) to the generated ~/.pysnmp/mibs/PACKETPOWER-EG4-MIB.py

So, how did PACKETPOWER-EG4-MI get online? Is it possible to either delete or modify it?

Thanks,

Jian

-----Original Message-----
From: Ilya Etingof [mailto:il...@gl...]
Sent: Saturday, December 3, 2016 7:39 AM
To: Jian Li
Cc: pys...@li...
Subject: Re: [pysnmp-users] Custom MIB files


My guess is that once you compiled MIB into .py form, you should make pysnmp using it by either:

*  moving your .py MIB into ~/.pysnmp/mibs or
* configuring pysnmp to pick up .py MIBs from a non-default location (http://pysnmp.sourceforge.net/docs/api-reference.html#pysnmp.smi.rfc1902.ObjectIdentity.addMibSource).

MIB files at snmplabs.com serve as a shared, community repository of originally ASN.1 MIB files, there should be no need to remove them.

> On 02 Dec 2016, at 22:41, Jian Li <ji...@le...<mailto:ji...@le...>> wrote:
>
> Ilya,
>
> I modified my mib file and did a "mibdump.py --rebuild" with the
> modified mib file. But the generated python file did not take the
> modifications ( I am using ubuntu14.04 with python 2.7). Do I need to
> somehow delete the one online as well,
> http://mibs.snmplabs.com:80/asn1/PACKETPOWER-EG4-MIB
>
> Thanks,
>
> Jian
>
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...]
> Sent: Thursday, November 17, 2016 5:45 PM
> To: Jian Li
> Cc: pys...@li...<mailto:pys...@li...>
> Subject: Re: [pysnmp-users] Custom MIB files
>
>
> I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:
>
>     DisplayString
>                        FROM RFC1213-MIB
>
> for SMIv2 ones:
>
>     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
>                        FROM SNMPv2-TC
>
> It compiled successfully.
>
> As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:
>
>    gen = nextCmd(…)
>    for rsp in gen:
>        print(rsp)
>
> And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:
>
>   http://snmpsim.sourceforge.net/public-snmp-simulator.html
>
> Though it does not implement your MIB.
>
>> On 17 Nov 2016, at 22:18, Jian Li <ji...@le...<mailto:ji...@le...>> wrote:
>>
>> Ilya,
>>
>> Please find the attached MIB file. Thank you very much for your help.
>>
>> I was able to use mibdump.py to compile that MIB file to python
>> modules. There is another question I want to ask you about pysnmp as
>> well, I did not get any response for the following command, do I do
>> something obviously wrong? The snmp agent is configured and I was
>> able to get correct response for ObjectIdentity('SNMPv2-MIB',
>> 'system')
>>
>>  nextCmd(SnmpEngine(),
>>                                     CommunityData('public', mpModel=1),
>>                                     UdpTransportTarget(('169.254.81.145', 161)),
>>                                     ContextData(),
>>                                     ObjectType(ObjectIdentity('
>> PACKETPOWER-EG4-MIB, ' packetPower'))
>>
>> Thanks,
>>
>> Jian
>>
>> -----Original Message-----
>> From: Ilya Etingof [mailto:il...@gl...]
>> Sent: Thursday, November 17, 2016 3:08 PM
>> To: Jian Li
>> Cc: pys...@li...<mailto:pys...@li...>
>> Subject: Re: [pysnmp-users] Custom MIB files
>>
>>
>> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
>>
>>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le...<mailto:ji...@le...>> wrote:
>>>
>>> I tried to add the MIB files to a python script, using PySNMP
>>> addAsn1MibSource(‘file:///path’). However I got the following error,
>>>
>>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation
>>> error(s): missing; missing; missing; missing; no module "SNMPv2-SMI"
>>> in symbolTable at MIB CUSTOM-EG4-MIB
>>>
>>> Would really appreciate your help to get it resolved.
>>>
>>> Thanks,
>>>
>>> Jian
>> <PACKETPOWER-EG4-MIB>
>

Re: [pysnmp-users] Custom MIB files

[Jian Li <ji...@le...>]

Ilya,

It's a very wired issue. Maybe I am missing something very simple. This is what I did,
1. Modify THE-MIB
2. Delete THE-MIB.py and THE-MIB.pyc under ~/.pysnmp/mibs
3. mibdump.py --rebuild THE-MIB
4. THE-MIB.py and THE-MIB.pyc got generated under ~/.pysnmp/mibs. However, when I open MY-MIB.py the modification is not there.

The modification is rather simple, just add more values on INTEGER constraints,
                SYNTAX                  INTEGER  { voltage ( 1 ) , current ( 2 ) , more (3) }

It appears that the online one got copied to my local directory again?

Thanks,

Jian
-----Original Message-----
From: Ilya Etingof [mailto:il...@gl...] 
Sent: Saturday, December 3, 2016 7:39 AM
To: Jian Li
Cc: pys...@li...
Subject: Re: [pysnmp-users] Custom MIB files


My guess is that once you compiled MIB into .py form, you should make pysnmp using it by either:

*  moving your .py MIB into ~/.pysnmp/mibs or
* configuring pysnmp to pick up .py MIBs from a non-default location (http://pysnmp.sourceforge.net/docs/api-reference.html#pysnmp.smi.rfc1902.ObjectIdentity.addMibSource).

MIB files at snmplabs.com serve as a shared, community repository of originally ASN.1 MIB files, there should be no need to remove them.

> On 02 Dec 2016, at 22:41, Jian Li <ji...@le...> wrote:
> 
> Ilya,
> 
> I modified my mib file and did a "mibdump.py --rebuild" with the 
> modified mib file. But the generated python file did not take the 
> modifications ( I am using ubuntu14.04 with python 2.7). Do I need to 
> somehow delete the one online as well, 
> http://mibs.snmplabs.com:80/asn1/PACKETPOWER-EG4-MIB
> 
> Thanks,
> 
> Jian
> 
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...]
> Sent: Thursday, November 17, 2016 5:45 PM
> To: Jian Li
> Cc: pys...@li...
> Subject: Re: [pysnmp-users] Custom MIB files
> 
> 
> I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:
> 
>     DisplayString
>                        FROM RFC1213-MIB
> 
> for SMIv2 ones:
> 
>     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
>                        FROM SNMPv2-TC
> 
> It compiled successfully.
> 
> As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:
> 
>    gen = nextCmd(…)
>    for rsp in gen:
>        print(rsp)
> 
> And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:
> 
>   http://snmpsim.sourceforge.net/public-snmp-simulator.html
> 
> Though it does not implement your MIB.
> 
>> On 17 Nov 2016, at 22:18, Jian Li <ji...@le...> wrote:
>> 
>> Ilya,
>> 
>> Please find the attached MIB file. Thank you very much for your help.
>> 
>> I was able to use mibdump.py to compile that MIB file to python 
>> modules. There is another question I want to ask you about pysnmp as 
>> well, I did not get any response for the following command, do I do 
>> something obviously wrong? The snmp agent is configured and I was 
>> able to get correct response for ObjectIdentity('SNMPv2-MIB', 
>> 'system')
>> 
>>  nextCmd(SnmpEngine(),
>>                                     CommunityData('public', mpModel=1),
>>                                     UdpTransportTarget(('169.254.81.145', 161)),
>>                                     ContextData(),
>>                                     ObjectType(ObjectIdentity(' 
>> PACKETPOWER-EG4-MIB, ' packetPower'))
>> 
>> Thanks,
>> 
>> Jian
>> 
>> -----Original Message-----
>> From: Ilya Etingof [mailto:il...@gl...]
>> Sent: Thursday, November 17, 2016 3:08 PM
>> To: Jian Li
>> Cc: pys...@li...
>> Subject: Re: [pysnmp-users] Custom MIB files
>> 
>> 
>> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
>> 
>>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le...> wrote:
>>> 
>>> I tried to add the MIB files to a python script, using PySNMP 
>>> addAsn1MibSource(‘file:///path’). However I got the following error,
>>> 
>>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation 
>>> error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" 
>>> in symbolTable at MIB CUSTOM-EG4-MIB
>>> 
>>> Would really appreciate your help to get it resolved.
>>> 
>>> Thanks,
>>> 
>>> Jian
>> <PACKETPOWER-EG4-MIB>
> 

Re: [pysnmp-users] Custom MIB files

[Ilya E. <il...@gl...>]

My guess is that once you compiled MIB into .py form, you should make pysnmp using it by either:

*  moving your .py MIB into ~/.pysnmp/mibs or
* configuring pysnmp to pick up .py MIBs from a non-default location (http://pysnmp.sourceforge.net/docs/api-reference.html#pysnmp.smi.rfc1902.ObjectIdentity.addMibSource).

MIB files at snmplabs.com serve as a shared, community repository of originally ASN.1 MIB files, there should be no need to remove them.

> On 02 Dec 2016, at 22:41, Jian Li <ji...@le...> wrote:
> 
> Ilya,
> 
> I modified my mib file and did a "mibdump.py --rebuild" with the modified mib file. But the generated python file did not take the modifications ( I am using ubuntu14.04 with python 2.7). Do I need to somehow delete the one online as well,
> http://mibs.snmplabs.com:80/asn1/PACKETPOWER-EG4-MIB
> 
> Thanks,
> 
> Jian
> 
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...] 
> Sent: Thursday, November 17, 2016 5:45 PM
> To: Jian Li
> Cc: pys...@li...
> Subject: Re: [pysnmp-users] Custom MIB files
> 
> 
> I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:
> 
>     DisplayString
>                        FROM RFC1213-MIB
> 
> for SMIv2 ones:
> 
>     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
>                        FROM SNMPv2-TC
> 
> It compiled successfully.
> 
> As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:
> 
>    gen = nextCmd(…)
>    for rsp in gen:
>        print(rsp)
> 
> And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:
> 
>   http://snmpsim.sourceforge.net/public-snmp-simulator.html
> 
> Though it does not implement your MIB.
> 
>> On 17 Nov 2016, at 22:18, Jian Li <ji...@le...> wrote:
>> 
>> Ilya,
>> 
>> Please find the attached MIB file. Thank you very much for your help.
>> 
>> I was able to use mibdump.py to compile that MIB file to python modules. There is another question I want to ask you about pysnmp as well, I did not get any response for the following command, do I do something obviously wrong? The snmp agent is configured and I was able to get correct response for ObjectIdentity('SNMPv2-MIB', 'system')
>> 
>>  nextCmd(SnmpEngine(),
>>                                     CommunityData('public', mpModel=1),
>>                                     UdpTransportTarget(('169.254.81.145', 161)),
>>                                     ContextData(),
>>                                     ObjectType(ObjectIdentity(' PACKETPOWER-EG4-MIB, ' packetPower'))
>> 
>> Thanks,
>> 
>> Jian
>> 
>> -----Original Message-----
>> From: Ilya Etingof [mailto:il...@gl...] 
>> Sent: Thursday, November 17, 2016 3:08 PM
>> To: Jian Li
>> Cc: pys...@li...
>> Subject: Re: [pysnmp-users] Custom MIB files
>> 
>> 
>> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
>> 
>>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le...> wrote:
>>> 
>>> I tried to add the MIB files to a python script, using PySNMP addAsn1MibSource(‘file:///path’). However I got the following error,
>>> 
>>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" in symbolTable at MIB CUSTOM-EG4-MIB
>>> 
>>> Would really appreciate your help to get it resolved.
>>> 
>>> Thanks,
>>> 
>>> Jian
>> <PACKETPOWER-EG4-MIB>
> 

Re: [pysnmp-users] Custom MIB files

[Ilya E. <il...@gl...>]

I could not compile your MIB because it seems to import both SMIv1 and SMIv2 types. Once I changed the SMIv1 IMPORTS:

     DisplayString
                        FROM RFC1213-MIB

for SMIv2 ones:

     DateAndTime, DisplayString, RowStatus, TruthValue, DisplayString
                        FROM SNMPv2-TC

It compiled successfully.

As for your other question — your code looks OK for as long as you actually iterate the generator you’ve created because this is when actual I/O happens:

    gen = nextCmd(…)
    for rsp in gen:
        print(rsp)

And SNMP agent at 169.254.81.145 is responding. You may also debug your script against public SNMP simulator:

   http://snmpsim.sourceforge.net/public-snmp-simulator.html

Though it does not implement your MIB.

> On 17 Nov 2016, at 22:18, Jian Li <ji...@le...> wrote:
> 
> Ilya,
> 
> Please find the attached MIB file. Thank you very much for your help.
> 
> I was able to use mibdump.py to compile that MIB file to python modules. There is another question I want to ask you about pysnmp as well, I did not get any response for the following command, do I do something obviously wrong? The snmp agent is configured and I was able to get correct response for ObjectIdentity('SNMPv2-MIB', 'system')
> 
>   nextCmd(SnmpEngine(),
>                                      CommunityData('public', mpModel=1),
>                                      UdpTransportTarget(('169.254.81.145', 161)),
>                                      ContextData(),
>                                      ObjectType(ObjectIdentity(' PACKETPOWER-EG4-MIB, ' packetPower'))
> 
> Thanks,
> 
> Jian
> 
> -----Original Message-----
> From: Ilya Etingof [mailto:il...@gl...] 
> Sent: Thursday, November 17, 2016 3:08 PM
> To: Jian Li
> Cc: pys...@li...
> Subject: Re: [pysnmp-users] Custom MIB files
> 
> 
> Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.
> 
>> On 15 Nov 2016, at 16:34, Jian Li <ji...@le...> wrote:
>> 
>> I tried to add the MIB files to a python script, using PySNMP addAsn1MibSource(‘file:///path’). However I got the following error,
>> 
>> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" in symbolTable at MIB CUSTOM-EG4-MIB
>> 
>> Would really appreciate your help to get it resolved.
>> 
>> Thanks,
>> 
>> Jian
> <PACKETPOWER-EG4-MIB>

Re: [pysnmp-users] Custom MIB files

[Ilya E. <il...@gl...>]

Could you please share your MIB (e.g. CUSTOM-EG4-MIB)? I suspect it has syntax errors, in particular it may miss SNMPv2-SMI import.

> On 15 Nov 2016, at 16:34, Jian Li <ji...@le...> wrote:
> 
> I tried to add the MIB files to a python script, using PySNMP addAsn1MibSource(‘file:///path’). However I got the following error,
>  
> pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" in symbolTable at MIB CUSTOM-EG4-MIB
>  
> Would really appreciate your help to get it resolved.
>  
> Thanks,
>  
> Jian

[pysnmp-users] Custom MIB files

[Jian Li <ji...@le...>]

I tried to add the MIB files to a python script, using PySNMP addAsn1MibSource('file:///path'). However I got the following error,

pysnmp.smi.error.MibNotFoundError: CUSTOM-EG4-MIB compilation error(s): missing; missing; missing; missing; no module "SNMPv2-SMI" in symbolTable at MIB CUSTOM-EG4-MIB

Would really appreciate your help to get it resolved.

Thanks,

Jian

Re: [pysnmp-users] Python 3 apparent compatibility problem

[Clive T. <cl...@sw...>]

Many thanks for the advice. As it looked like a Python version problem (I use Python 3.4), I reinstalled, but this time being careful to use pip3.4. All is well now!
Thanks again,
Clive

From: Ilya Etingof [mailto:il...@gl...]
Sent: 16 September 2016 23:09
To: Clive Tomlinson <cl...@sw...>
Cc: pys...@li...
Subject: Re: [pysnmp-users] Python 3 apparent compatibility problem


Hi Clive,

The pysnmp library definitely works with Python 3.4 on Linux and OS X. To troubleshoot your issue please provide the whole traceback and the script you are running. Also make sure you are running the latest pyasn1 version.

Finally, if nothing helps, try running pysnmp with its internal debugging enables — that would pinpoint the step where exception occurs.


On 16 Sep 2016, at 16:12, Clive Tomlinson <cl...@sw...<mailto:cl...@sw...>> wrote:

Hello
I’m trying to get PySNMP 4.3.2 working with Python 3.4, on a Windows PC using the Pycharm IDE.
I started by copying some example code from the PySNMP page on sourceforge. Its first line was
from pysnmp.hlapi import *
That import caused a load of errors when I attempted to run it. Here’s an example:
File "C:\Users\clive\AppData\Roaming\Python\Python34\site-packages\pysnmp\proto\rfc1902.py", line 25
    constraints.ValueRangeConstraint(-2147483648L, 2147483647L),
As the ‘L’ suffix has been removed in Python 3, it looks like there’s a compatibility problem.
Yet people say that PySNMP works with Python up to 3.5.
I’m very puzzled, and will welcome any help.
Thanks
Clive

Re: [pysnmp-users] Python 3 apparent compatibility problem

[Ilya E. <il...@gl...>]

Hi Clive,

The pysnmp library definitely works with Python 3.4 on Linux and OS X. To troubleshoot your issue please provide the whole traceback and the script you are running. Also make sure you are running the latest pyasn1 version.

Finally, if nothing helps, try running pysnmp with its internal debugging enables — that would pinpoint the step where exception occurs.


> On 16 Sep 2016, at 16:12, Clive Tomlinson <cl...@sw...> wrote:
> 
> Hello
> I’m trying to get PySNMP 4.3.2 working with Python 3.4, on a Windows PC using the Pycharm IDE.
> I started by copying some example code from the PySNMP page on sourceforge. Its first line was
> from pysnmp.hlapi import *
> That import caused a load of errors when I attempted to run it. Here’s an example:
> File "C:\Users\clive\AppData\Roaming\Python\Python34\site-packages\pysnmp\proto\rfc1902.py", line 25
>     constraints.ValueRangeConstraint(-2147483648L, 2147483647L),
> As the ‘L’ suffix has been removed in Python 3, it looks like there’s a compatibility problem.
> Yet people say that PySNMP works with Python up to 3.5.
> I’m very puzzled, and will welcome any help.
> Thanks
> Clive

[pysnmp-users] Python 3 apparent compatibility problem

[Clive T. <cl...@sw...>]

Hello
I'm trying to get PySNMP 4.3.2 working with Python 3.4, on a Windows PC using the Pycharm IDE.
I started by copying some example code from the PySNMP page on sourceforge. Its first line was
from pysnmp.hlapi import *
That import caused a load of errors when I attempted to run it. Here's an example:
File "C:\Users\clive\AppData\Roaming\Python\Python34\site-packages\pysnmp\proto\rfc1902.py", line 25
    constraints.ValueRangeConstraint(-2147483648L, 2147483647L),
As the 'L' suffix has been removed in Python 3, it looks like there's a compatibility problem.
Yet people say that PySNMP works with Python up to 3.5.
I'm very puzzled, and will welcome any help.
Thanks
Clive

Re: [pysnmp-users] Troubles switching from hlapi synchronous bulkCmd to asyncore equivalent

[Ilya E. <il...@gl...>]

Hi Graham,

As for #1, the sync version has some logic in place to produce a well-formed response table from possibly excessive data served by the agent. That additional code is here:

    https://github.com/etingof/pysnmp/blob/master/pysnmp/hlapi/asyncore/sync/cmdgen.py#L572 <https://github.com/etingof/pysnmp/blob/master/pysnmp/hlapi/asyncore/sync/cmdgen.py#L572>

To keep next/bulk command generator going, your callback function should return True. But it should do it conditionally — when, after looking into response table, your code considers the whole table it fetched, it should return False to terminate the iteration. Alternatively, you can always issue single queries (by returning False from the callback) for as long as you want more data, by initiating next/bulk iteration right from the callback or a loop. The second approach is taken in the sync version:

    https://github.com/etingof/pysnmp/blob/master/examples/v3arch/asyncore/manager/cmdgen/getbulk-multiple-oids-to-eom.py#L67 <https://github.com/etingof/pysnmp/blob/master/examples/v3arch/asyncore/manager/cmdgen/getbulk-multiple-oids-to-eom.py#L67>

I would not recommend descending to the “native API level” as it is way more detailed and does solve neither of the issues you mention. I’d probably experiment with borrowing a piece of relevant code from the sync version and putting it into your callback to strip excessive rows and stop when table is done.

If you end up isolating the above code into a reusable subroutine, I’d welcome your PR. ;)

> On 23 Aug 2016, at 14:42, Graham Hudspith <gr...@ze...> wrote:
> 
> Hi All,
> 
> I've a python+pySNMP script querying an agent using the hlapi (synchronous) api and I want to switch it to using the hlapi.asyncore api instead.
> 
> This is with version 4.3.2 and using bulkCmd().
> 
> To do this I had to move most of my code into a callback function, create a cbCtx object to pass in a dict to store the results into and then call the snmp-engine's transport dispatcher.
> 
> I've come across two problems:
> 
> Since the hlapi.asyncore version of bulkCmd() does not seem to support the "lexicographicMode=False" option, I now get "extra" results returned when the data in the asked-for table runs out. Sometimes this contains entries for "columns" in the table that I have *not* asked for, sometimes it contains "columns" from "rows" in the next table
> My callback seems to be called only once per query, so if the table is larger than the number of rows that will fit in one response, the code does not issue a new request and my results are truncated. My callback does not return a value, but if I add a "return True" to the end, it seems to loop forever, including many, many, results from beyond the end of the asked-for table
> 
> Are these well known problems ?
> 
> I can't find an example in the pysnmp code (or documentation) for the hlapi.asyncore version of bulkCmd(). Is this because no-one uses it ?
> 
> Would I be better off switching from hlapi bulkCmd() to the "Native SNMP API" version ?
> 
> Regards,
> 
> Graham
> 
> -- 

Re: [pysnmp-users] PySNMP v3 Notification receiver

[Ilya E. <il...@gl...>]

You should definitely bind your script to 0.0.0.0 or any other non-loopback interface.

If you still see no packets coming into the script, try enabling debugging in pysnmp to see if packets ever reach it and the reason why it does not respond.

  from pysnmp import debug

  debug.setLogger(debug.Debug(‘all’))


> On 29 Aug 2016, at 16:41, rajesh chandra <cxr...@gm...> wrote:
> 
> Hi Paul,
> 
> I have tried all the possible scenarios which includes 0.0.0.0 address but i still see same behavior. 
> 
> Interesting(and also frustrating) thing is , I can see SNMP trap(see below) on My VM's eth0 but nothing on Listener script :( . 
> 
> mulamall@tpcvm40:~$ sudo tcpdump -i eth0 
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
> 15:15:24.047840 IP device.55718 > .snmp-trap:  F=ap U=usr-md5-des [!scoped PDU]36_6b_6b_5f_b8_25_36_14_e5_f6_cd_3d_a1_75_bb_e2_c3_3e_f5_68_da_28_c1_41_d5_1f_f1_85_1d_9f_60_c1_89_e5_ad_61_35_94_c9_34_01_70_09_df_39_ac_30_e9_c0_1d_3b_b7_15_67_33_63_3f_fe_1e_56_c1_7d_1d_f3_eb_2d_ca_76_af_03_c7_45_9e_70_9b_eb_b4_5c_b9_f4_c8_d7_17_d2_03_f5_75_6b_b4_79_73_a2_1b_9c_a0_40_13_68_82_e7_1c_14_df_f1_ce_9d_00_a7_dc_1a_d5_fe_0d_e6_2a_0e_81_5a_cd_04_38_cb_1b_6e_53_d5_a4_a3_e9_ee_18_f8_1c_46_95_d8_bc_51_ba_7f_f3_b0_e0_1b_b9_4e_17_03_6d_95_24_3d_ab_be_bc_ea_e1_39_16_d3_cd_54_7e_6b_62_19_8f_8a
> 
> 
> On Mon, Aug 29, 2016 at 10:30 AM, <Pau...@de...> wrote:
> 
> > On Aug 29, 2016, at 9:55 AM, rajesh chandra <cxr...@gm...> wrote:
> >
> > Hi,
> >
> > I have PySNMP notification receiver for SNMP V3 traps as below...
> >
> > Instead of localhost IP , I have My VM ip -----> for this scenario, I am not receiving any traps if generate one from outside the VM(I am using snmptrap command from another machine) but I can see SNMP data when I do tcpdump on VM eth0. If I generate trap on same machine(My VM) I can see trap data via PySNMP trap receiver script. I have no issues with network connectivity and FW is not blocking any of My data.
> > ...
> >
> > # UDP over IPv4
> > config.addSocketTransport(
> >     snmpEngine,
> >     udp.domainName,
> >     udp.UdpTransport().openServerMode(('127.0.0.1', 162))
> 
> That address/port pair is used as the argument on a socket bind() call.  The address, if specified, means you only want packets from that address.  If you want packets from any address, specify 0.0.0.0.
> 
>         paul
> 
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> pysnmp-users mailing list
> pys...@li...
> https://lists.sourceforge.net/lists/listinfo/pysnmp-users

Re: [pysnmp-users] PySNMP v3 Notification receiver

[rajesh c. <cxr...@gm...>]

Hi Paul,

I have tried all the possible scenarios which includes 0.0.0.0 address but
i still see same behavior.

Interesting(and also frustrating) thing is , I can see SNMP trap(see below)
on My VM's eth0 but nothing on Listener script :( .

mulamall@tpcvm40:~$ sudo tcpdump -i eth0
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
15:15:24.047840 IP device.55718 > .snmp-trap:  F=ap U=usr-md5-des [!scoped
PDU]36_6b_6b_5f_b8_25_36_14_e5_f6_cd_3d_a1_75_bb_e2_c3_3e_f5_68_da_28_c1_41_d5_1f_f1_85_1d_9f_60_c1_89_e5_ad_61_35_94_c9_34_01_70_09_df_39_ac_30_e9_c0_1d_3b_b7_15_67_33_63_3f_fe_1e_56_c1_7d_1d_f3_eb_2d_ca_76_af_03_c7_45_9e_70_9b_eb_b4_5c_b9_f4_c8_d7_17_d2_03_f5_75_6b_b4_79_73_a2_1b_9c_a0_40_13_68_82_e7_1c_14_df_f1_ce_9d_00_a7_dc_1a_d5_fe_0d_e6_2a_0e_81_5a_cd_04_38_cb_1b_6e_53_d5_a4_a3_e9_ee_18_f8_1c_46_95_d8_bc_51_ba_7f_f3_b0_e0_1b_b9_4e_17_03_6d_95_24_3d_ab_be_bc_ea_e1_39_16_d3_cd_54_7e_6b_62_19_8f_8a


On Mon, Aug 29, 2016 at 10:30 AM, <Pau...@de...> wrote:

>
> > On Aug 29, 2016, at 9:55 AM, rajesh chandra <cxr...@gm...> wrote:
> >
> > Hi,
> >
> > I have PySNMP notification receiver for SNMP V3 traps as below...
> >
> > Instead of localhost IP , I have My VM ip -----> for this scenario, I am
> not receiving any traps if generate one from outside the VM(I am using
> snmptrap command from another machine) but I can see SNMP data when I do
> tcpdump on VM eth0. If I generate trap on same machine(My VM) I can see
> trap data via PySNMP trap receiver script. I have no issues with network
> connectivity and FW is not blocking any of My data.
> > ...
> >
> > # UDP over IPv4
> > config.addSocketTransport(
> >     snmpEngine,
> >     udp.domainName,
> >     udp.UdpTransport().openServerMode(('127.0.0.1', 162))
>
> That address/port pair is used as the argument on a socket bind() call.
> The address, if specified, means you only want packets from that address.
> If you want packets from any address, specify 0.0.0.0.
>
>         paul
>
>

Re: [pysnmp-users] PySNMP v3 Notification receiver

[<Pau...@De...>]

> On Aug 29, 2016, at 9:55 AM, rajesh chandra <cxr...@gm...> wrote:
> 
> Hi,
> 
> I have PySNMP notification receiver for SNMP V3 traps as below...
> 
> Instead of localhost IP , I have My VM ip -----> for this scenario, I am not receiving any traps if generate one from outside the VM(I am using snmptrap command from another machine) but I can see SNMP data when I do tcpdump on VM eth0. If I generate trap on same machine(My VM) I can see trap data via PySNMP trap receiver script. I have no issues with network connectivity and FW is not blocking any of My data.
> ...
> 
> # UDP over IPv4
> config.addSocketTransport(
>     snmpEngine,
>     udp.domainName,
>     udp.UdpTransport().openServerMode(('127.0.0.1', 162))  

That address/port pair is used as the argument on a socket bind() call.  The address, if specified, means you only want packets from that address.  If you want packets from any address, specify 0.0.0.0.

	paul

Re: [pysnmp-users] PySNMP v3 Notification receiver

[rajesh c. <cxr...@gm...>]

Hi,

I have PySNMP notification receiver for SNMP V3 traps as below...

Instead of localhost IP , I have My VM ip -----> for this scenario, I am
not receiving any traps if generate one from outside the VM(I am using
snmptrap command from another machine) but I can see SNMP data when I do
tcpdump on VM eth0. If I generate trap on same machine(My VM) I can see
trap data via PySNMP trap receiver script. I have no issues with network
connectivity and FW is not blocking any of My data.

Please help me ASAP

from pysnmp.entity import engine, config
from pysnmp.carrier.asynsock.dgram import udp
from pysnmp.entity.rfc3413 import ntfrcv
from pysnmp.proto.api import v2c

# Create SNMP engine with autogenernated engineID and pre-bound
# to socket transport dispatcher
snmpEngine = engine.SnmpEngine()

# Transport setup

# UDP over IPv4
config.addSocketTransport(
    snmpEngine,
    udp.domainName,
    udp.UdpTransport().openServerMode(('127.0.0.1', 162))
)

# SNMPv3/USM setup

# user: usr-md5-des, auth: MD5, priv DES
config.addV3User(
    snmpEngine, 'usr-md5-des',
    config.usmHMACMD5AuthProtocol, 'authkey1',
    config.usmDESPrivProtocol, 'privkey1'
)

# user: usr-md5-des, auth: MD5, priv DES, contextEngineId: 8000000001020304
# this USM entry is used for TRAP receiving purposes
config.addV3User(
    snmpEngine, 'usr-md5-des',
    config.usmHMACMD5AuthProtocol, 'authkey1',
    config.usmDESPrivProtocol, 'privkey1',
    contextEngineId=v2c.OctetString(hexValue='8000000001020304')
)

# user: usr-md5-none, auth: MD5, priv NONE
config.addV3User(
    snmpEngine, 'usr-md5-none',
    config.usmHMACMD5AuthProtocol, 'authkey1'
)

# user: usr-md5-none, auth: MD5, priv NONE, contextEngineId: 8000000001020304
# this USM entry is used for TRAP receiving purposes
config.addV3User(
    snmpEngine, 'usr-md5-none',
    config.usmHMACMD5AuthProtocol, 'authkey1',
    contextEngineId=v2c.OctetString(hexValue='8000000001020304')
)

# user: usr-sha-aes128, auth: SHA, priv AES
config.addV3User(
    snmpEngine, 'usr-sha-aes128',
    config.usmHMACSHAAuthProtocol, 'authkey1',
    config.usmAesCfb128Protocol, 'privkey1'
)
# user: usr-sha-aes128, auth: SHA, priv AES, contextEngineId: 8000000001020304
# this USM entry is used for TRAP receiving purposes
config.addV3User(
    snmpEngine, 'usr-sha-aes128',
    config.usmHMACSHAAuthProtocol, 'authkey1',
    config.usmAesCfb128Protocol, 'privkey1',
    contextEngineId=v2c.OctetString(hexValue='8000000001020304')
)

# Callback function for receiving notifications
def cbFun(snmpEngine,
          stateReference,
          contextEngineId, contextName,
          varBinds,
          cbCtx):
    print('Notification received, ContextEngineId "%s", ContextName "%s"' % (
        contextEngineId.prettyPrint(), contextName.prettyPrint()
        )
    )
    for name, val in varBinds:
        print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))

# Register SNMP Application at the SNMP engine
ntfrcv.NotificationReceiver(snmpEngine, cbFun)

snmpEngine.transportDispatcher.jobStarted(1) # this job would never finish

# Run I/O dispatcher which would receive queries and send confirmations
try:
    snmpEngine.transportDispatcher.runDispatcher()
except:
    snmpEngine.transportDispatcher.closeDispatcher()
    raise

[pysnmp-users] Troubles switching from hlapi synchronous bulkCmd to asyncore equivalent

[Graham H. <gr...@ze...>]

Hi All,

I've a python+pySNMP script querying an agent using the hlapi (synchronous)
api and I want to switch it to using the hlapi.asyncore api instead.

This is with version 4.3.2 and using bulkCmd().


To do this I had to move most of my code into a callback function, create a
cbCtx object to pass in a dict to store the results into and then call the
snmp-engine's transport dispatcher.

I've come across two problems:


   1. Since the hlapi.asyncore version of bulkCmd() does not seem to
   support the "lexicographicMode=False" option, I now get "extra" results
   returned when the data in the asked-for table runs out. Sometimes this
   contains entries for "columns" in the table that I have *not* asked for,
   sometimes it contains "columns" from "rows" in the next table
   2. My callback seems to be called only once per query, so if the table
   is larger than the number of rows that will fit in one response, the code
   does not issue a new request and my results are truncated. My callback does
   not return a value, but if I add a "return True" to the end, it seems to
   loop forever, including many, many, results from beyond the end of the
   asked-for table


Are these well known problems ?

I can't find an example in the pysnmp code (or documentation) for the
hlapi.asyncore version of bulkCmd(). Is this because no-one uses it ?

Would I be better off switching from hlapi bulkCmd() to the "Native SNMP
API" version ?

Regards,

Graham


-- 


*Graham Hudspith      Zeetta Networks Limited*Software Engineer    Engine
Shed, Station Approach,
gr...@ze...    Temple Meads,
                     Bristol,
                     BS1 6QH
                     United Kingdom
                     zeetta.com <http://www.zeetta.com/>

[pysnmp-users] SNMP V3 with SHA-256 Privacy

[Reese, R. <re...@ec...>]

Hi all,

In version 4.3.2, I have a problem in that Pysnmp V3 authentication with SHA-256 privacy does not work to a Cisco device that I am using, while SHA-128 works fine. I have been using Pysnmp for quite a while and this is the first problem that I have encountered. Has SHA-256 privacy been verified to work? Any tips on debugging this?

Thanks.

Dr. Robert Reese
Associate Professor, ECE, Mississippi State University
US Mail: Box 9571, Miss State, MS 39762
Courier: 406 Hardy Rd, Simrall Bldg, Miss State, MS 39762
662 325 3154

Re: [pysnmp-users] How To Do Dynamic Conceptual Table?

[Cannon I. <can...@gm...>]

Hello!

Well, basically I struggled with reinitialize the table for days...

Finally the following approach did the trick:
http://pysnmp.sourceforge.net/examples/v3arch/asyncore/agent/cmdrsp/agent-side-mib-implementations.html#implementing-scalar-mib-objects

I mean: sub-classing the stuff and export the symbols.

And use:
mibBuilder.unexportSymbols("__EXAMPLE-MIB")
to start anew, when the table changes.

What is left is to query the db and update my own data structure (whats
going to be exported in the end).

Greetings!
Joseph

On Wed, Jul 6, 2016 at 1:50 PM, Cannon Imus <can...@gm...> wrote:

> Hello!
>
> I followed the example:
>
> http://pysnmp.sourceforge.net/examples/v3arch/asyncore/agent/cmdrsp/agent-side-mib-implementations.html#implementing-conceptual-table
>
> The static version is working fine, now I should read the rows from a DB.
>
> I'd like to know what is the recommended way for implementing a dynamic
> table?
>
> The FAQ entry:
> http://pysnmp.sourceforge.net/faq/how-to-implement-agent-mib.html
> says also something, but unfortunately I could not figure out, what the
> author meant by:
> "There are other ways for building MIB tables that represent dynamic
> Managed Objects."
>
> Thanks a lot!
> Joseph
>

[pysnmp-users] How To Do Dynamic Conceptual Table?

[Cannon I. <can...@gm...>]

Hello!

I followed the example:
http://pysnmp.sourceforge.net/examples/v3arch/asyncore/agent/cmdrsp/agent-side-mib-implementations.html#implementing-conceptual-table

The static version is working fine, now I should read the rows from a DB.

I'd like to know what is the recommended way for implementing a dynamic
table?

The FAQ entry:
http://pysnmp.sourceforge.net/faq/how-to-implement-agent-mib.html
says also something, but unfortunately I could not figure out, what the
author meant by:
"There are other ways for building MIB tables that represent dynamic
Managed Objects."

Thanks a lot!
Joseph