Re: [pysnmp-users] Error sending traps

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

There seems to be a bug in example trap sender in pysnmp 4.1.9a. The right
syntax is:

errorIndication = ntforg.NotificationOriginator().sendNotification(
     cmdgen.UsmUserData('my-user', 'my-authkey', 'my-privkey'),
     cmdgen.UdpTransportTarget(('localhost', 162)),
     'trap',
     (('SNMPv2-MIB', 'coldStart'),),
     ((1,3,6,1,2,1,1,3,0), v2c.TimeTicks(44100))
     )

or better checkout pysnmp from CVS at SourceForge - it has many bugs fixed 
compared to 4.1.9a.

-ilya

[ skipped ]

> So, I installed pysnmp 4.1.9a-1 on my Ubuntu box (using aptitude and Python
> 2.5). Then I've read the documentation and tried to execute the SNMP Trap
> example included on the documentation, to be more specifically, this one:
> 
> ----- cut here -----
> 
> >>> from pysnmp.entity.rfc3413.oneliner import cmdgen, ntforg
> >>> from pysnmp.proto.api import v2c
> >>> errorIndication = ntforg.NotificationOriginator().sendNotification(
> ... cmdgen.UsmUserData('my-user', 'my-authkey', 'my-privkey'),
> ... cmdgen.UdpTransportTarget(('localhost', 162)),
> ... 'trap',
> ... ('SNMPv2-MIB', 'coldStart'),
> ... ((1,3,6,1,2,1,1,3,0), v2c.TimeTicks(44100))
> )
> >>> print errorIndication
> None
> >>> print errorStatus
> 0
> 
> ---- cut here ----
> 
> when executing the sendNotification, I'm getting this error:
> 
> Traceback (most recent call last):
>   File "trap2.py", line 10, in <module>
>     ('SNMPv2-MIB', 'coldStart')
>   File"/var/lib/python-support/python2.5/pysnmp/v4/entity/rfc3413/oneliner/ntforg
> .py", line 120, in sendNotification
>     (__cbFun, appReturn)
>   File"/var/lib/python-support/python2.5/pysnmp/v4/entity/rfc3413/oneliner/ntforg
> .py", line 82, in asyncSendNotification
>     self.mibViewController, notificationType
>   File
> "/var/lib/python-support/python2.5/pysnmp/v4/entity/rfc3413/mibvar.py", line
> 31, in mibNameToOid
>     oid, label, suffix = mibView.getNodeNameByOid(name)
>   File "/var/lib/python-support/python2.5/pysnmp/v4/smi/view.py", line 196,
> in getNodeNameByOid
>     (modName, nodeName, self)
> pysnmp.smi.error.NoSuchObjectError: NoSuchObjectError({'str': "Can't resolve
> node name ::('SNMPv2-MIB', 'coldStart') at
> <pysnmp.smi.view.MibViewController instance at 0x8519ecc>"})
> 
> There is something that I'm missing? Why it can't resolve node name
> ('SNMPv2-MIB','coldStart')? Is there a filepath or something that should be
> set?
> 
> And I'm getting other error, on other example, but if I can solve this one,
> it will work perfectly for me!