Common notifications
********************


SNMPv1 TRAP
===========

Send SNMP notification using the following options:

* SNMPv1

* with community name 'public'

* over IPv4/UDP

* to a Manager at 104.236.166.95:162

* send TRAP notification

* with TRAP ID 'coldStart' specified as an OID

* include managed objects information:

* overriding Uptime value with 12345

* overriding Agent Address with '104.236.166.95'

* overriding Enterprise OID with 1.3.6.1.4.1.20408.4.1.1.2

* include managed object information '1.3.6.1.2.1.1.1.0' = 'my system'

Functionally similar to:

   $ snmptrap -v1 -c public demo.snmplabs.com 1.3.6.1.4.1.20408.4.1.1.2 104.236.166.95 6 432 12345 1.3.6.1.2.1.1.1.0 s "my system"

   from pysnmp.entity import engine, config
   from pysnmp.carrier.asyncore.dgram import udp
   from pysnmp.entity.rfc3413 import ntforg
   from pysnmp.proto.api import v2c

   # Create SNMP engine instance
   snmpEngine = engine.SnmpEngine()

   # SecurityName <-> CommunityName mapping
   config.addV1System(snmpEngine, 'my-area', 'public', transportTag='all-my-managers')

   # Specify security settings per SecurityName (SNMPv1 -> 0)
   config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 0)

   # Setup transport endpoint and bind it with security settings yielding
   # a target name
   config.addTransport(
       snmpEngine,
       udp.domainName,
       udp.UdpSocketTransport().openClientMode()
   )
   config.addTargetAddr(
       snmpEngine, 'my-nms',
       udp.domainName, ('104.236.166.95', 162),
       'my-creds',
       tagList='all-my-managers'
   )

   # Specify what kind of notification should be sent (TRAP or INFORM),
   # to what targets (chosen by tag) and what filter should apply to
   # the set of targets (selected by tag)
   config.addNotificationTarget(
       snmpEngine, 'my-notification', 'my-filter', 'all-my-managers', 'trap'
   )

   # Allow NOTIFY access to Agent's MIB by this SNMP model (1), securityLevel
   # and SecurityName
   config.addContext(snmpEngine, '')
   config.addVacmUser(snmpEngine, 1, 'my-area', 'noAuthNoPriv', (), (), (1, 3, 6))

   # *** SNMP engine configuration is complete by this line ***

   # Create Notification Originator App instance. 
   ntfOrg = ntforg.NotificationOriginator()

   # Build and submit notification message to dispatcher
   ntfOrg.sendVarBinds(
       snmpEngine,
       # Notification targets
       'my-notification',  # notification targets
       None, '',  # contextEngineId, contextName
       # var-binds
       [
           # Uptime value with 12345
           (v2c.ObjectIdentifier('1.3.6.1.2.1.1.3.0'),
            v2c.TimeTicks(12345)),
           # trap OID: Generic Trap #6 (enterpriseSpecific)
           #           and Specific Trap 432
           (v2c.ObjectIdentifier('1.3.6.1.6.3.1.1.5.1'),
            v2c.ObjectIdentifier('1.3.6.1.4.1.20408.4.1.1.2.0.432')),
           # Agent Address with '127.0.0.1'
           (v2c.ObjectIdentifier('1.3.6.1.6.3.18.1.3.0'),
            v2c.IpAddress('127.0.0.1')),
           # Enterprise OID with 1.3.6.1.4.1.20408.4.1.1.2
           (v2c.ObjectIdentifier('1.3.6.1.6.3.1.1.4.3.0'),
            v2c.ObjectIdentifier('1.3.6.1.4.1.20408.4.1.1.2')),
           # managed object '1.3.6.1.2.1.1.1.0' = 'my system'
           (v2c.ObjectIdentifier('1.3.6.1.2.1.1.1.0'),
            v2c.OctetString('my system'))
       ]
   )

   print('Notification is scheduled to be sent')

   # Run I/O dispatcher which would send pending message and stop
   snmpEngine.transportDispatcher.runDispatcher()

"Download" script.


SNMPv2c TRAP
============

Send SNMP TRAP notification using the following options:

* SNMPv2c

* with community name 'public'

* over IPv4/UDP

* send TRAP notification

* to a Manager at 104.236.166.95:162

* with TRAP ID 'coldStart' specified as an OID

* include managed objects information: 1.3.6.1.2.1.1.1.0 = 'Example
  Notificator' 1.3.6.1.2.1.1.5.0 = 'Notificator Example'

Functionally similar to:

   $ snmptrap -v2c -c public 104.236.166.95 12345 1.3.6.1.4.1.20408.4.1.1.2

   from pysnmp.entity import engine, config
   from pysnmp.carrier.asyncore.dgram import udp
   from pysnmp.entity.rfc3413 import ntforg
   from pysnmp.proto.api import v2c

   # Create SNMP engine instance
   snmpEngine = engine.SnmpEngine()

   # SecurityName <-> CommunityName mapping
   config.addV1System(snmpEngine, 'my-area', 'public', transportTag='all-my-managers')

   # Specify security settings per SecurityName (SNMPv2c -> 1)
   config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 1)

   # Setup transport endpoint and bind it with security settings yielding
   # a target name
   config.addTransport(
       snmpEngine,
       udp.domainName,
       udp.UdpSocketTransport().openClientMode()
   )
   config.addTargetAddr(
       snmpEngine, 'my-nms',
       udp.domainName, ('104.236.166.95', 162),
       'my-creds',
       tagList='all-my-managers'
   )

   # Specify what kind of notification should be sent (TRAP or INFORM),
   # to what targets (chosen by tag) and what filter should apply to
   # the set of targets (selected by tag)
   config.addNotificationTarget(
       snmpEngine, 'my-notification', 'my-filter', 'all-my-managers', 'trap'
   )

   # Allow NOTIFY access to Agent's MIB by this SNMP model (2), securityLevel
   # and SecurityName
   config.addContext(snmpEngine, '')
   config.addVacmUser(snmpEngine, 2, 'my-area', 'noAuthNoPriv', (), (), (1, 3, 6))

   # *** SNMP engine configuration is complete by this line ***

   # Create Notification Originator App instance. 
   ntfOrg = ntforg.NotificationOriginator()


   # Error/confirmation receiver
   # noinspection PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal
   def cbFun(snmpEngine, sendRequestHandle, errorIndication,
             errorStatus, errorIndex, varBinds, cbCtx):
       print('Notification %s, status - %s' % (
           sendRequestHandle, errorIndication and errorIndication or 'delivered'
       )
             )


   # Build and submit notification message to dispatcher
   sendRequestHandle = ntfOrg.sendVarBinds(
       snmpEngine,
       # Notification targets
       'my-notification',  # notification targets
       None, '',  # contextEngineId, contextName
       # var-binds
       [
           # SNMPv2-SMI::snmpTrapOID.0 = SNMPv2-MIB::coldStart
           ((1, 3, 6, 1, 6, 3, 1, 1, 4, 1, 0), v2c.ObjectIdentifier((1, 3, 6, 1, 6, 3, 1, 1, 5, 1))),
           # additional var-binds: ( (oid, value), ... )
           ((1, 3, 6, 1, 2, 1, 1, 1, 0), v2c.OctetString('Example Notificator')),
           ((1, 3, 6, 1, 2, 1, 1, 5, 0), v2c.OctetString('Notificator Example'))
       ],
       cbFun
   )

   print('Notification %s is scheduled to be sent' % sendRequestHandle)

   # Run I/O dispatcher which would send pending message and process response
   snmpEngine.transportDispatcher.runDispatcher()

"Download" script.


INFORM notification
===================

Send SNMP INFORM notification using the following options:

* SNMPv2c

* with community name 'public'

* over IPv4/UDP

* send INFORM notification

* to a Manager at 104.236.166.95:162

* with TRAP ID 'coldStart' specified as an OID

* include managed objects information: 1.3.6.1.2.1.1.1.0 = 'Example
  Notificator' 1.3.6.1.2.1.1.5.0 = 'Notificator Example'

Functionally similar to:

   $ snmpinform -v2c -c public 104.236.166.95 12345 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.1.0 s 'Example Notificator' 1.3.6.1.2.1.1.5.0 s 'Notificator Example'

   from pysnmp.entity import engine, config
   from pysnmp.carrier.asyncore.dgram import udp
   from pysnmp.entity.rfc3413 import ntforg
   from pysnmp.proto.api import v2c

   # Create SNMP engine instance
   snmpEngine = engine.SnmpEngine()

   # SecurityName <-> CommunityName mapping (+ transport binding)
   config.addV1System(snmpEngine, 'my-area', 'public',
                      transportTag='all-my-managers')

   # Specify security settings per SecurityName (SNMPv2c -> 1)
   config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 1)

   # Setup transport endpoint and bind it with security settings yielding
   # a target name
   config.addTransport(
       snmpEngine,
       udp.domainName,
       udp.UdpSocketTransport().openClientMode()
   )
   config.addTargetAddr(
       snmpEngine, 'my-nms',
       udp.domainName, ('104.236.166.95', 162),
       'my-creds',
       tagList='all-my-managers'
   )

   # Specify what kind of notification should be sent (TRAP or INFORM),
   # to what targets (chosen by tag) and what filter should apply to
   # the set of targets (selected by tag)
   config.addNotificationTarget(
       snmpEngine, 'my-notification', 'my-filter', 'all-my-managers', 'inform'
   )

   # Allow NOTIFY access to Agent's MIB by this SNMP model (2), securityLevel
   # and SecurityName
   config.addContext(snmpEngine, '')
   config.addVacmUser(snmpEngine, 2, 'my-area', 'noAuthNoPriv', (), (), (1, 3, 6))

   # *** SNMP engine configuration is complete by this line ***

   # Create Notification Originator App instance. 
   ntfOrg = ntforg.NotificationOriginator()


   # Error/confirmation receiver
   # noinspection PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal,PyUnusedLocal
   def cbFun(snmpEngine, sendRequestHandle, errorIndication,
             errorStatus, errorIndex, varBinds, cbCtx):
       print('Notification %s, status - %s' % (
           sendRequestHandle, errorIndication and errorIndication or 'delivered'
       )
             )


   # Build and submit notification message to dispatcher
   sendRequestHandle = ntfOrg.sendVarBinds(
       snmpEngine,
       'my-notification',  # notification targets
       None, '',  # contextEngineId, contextName
       # var-binds
       [
           # SNMPv2-SMI::snmpTrapOID.0 = SNMPv2-MIB::coldStart
           ((1, 3, 6, 1, 6, 3, 1, 1, 4, 1, 0), v2c.ObjectIdentifier((1, 3, 6, 1, 6, 3, 1, 1, 5, 1))),
           # additional var-binds: ( (oid, value), ... )
           ((1, 3, 6, 1, 2, 1, 1, 1, 0), v2c.OctetString('Example Notificator')),
           ((1, 3, 6, 1, 2, 1, 1, 5, 0), v2c.OctetString('Notificator Example'))
       ],
       cbFun
   )

   print('Notification %s scheduled to be sent' % sendRequestHandle)

   # Run I/O dispatcher which would send pending message and process response
   snmpEngine.transportDispatcher.runDispatcher()

"Download" script.

See also: library reference.
