"""
SNMPv3 TRAP: auth SHA, privacy: AES128
++++++++++++++++++++++++++++++++++++++

Send SNMP notification using the following options:

* SNMPv3
* with authoritative snmpEngineId = 0x8000000001020304 
  (USM must be configured at the Receiver accordingly)
* with user 'usr-sha-aes128', auth: SHA, priv: AES128
* over IPv4/UDP
* send TRAP notification
* with TRAP ID 'authenticationFailure' specified as a MIB symbol
* do not include any additional managed object information

SNMPv3 TRAPs requires pre-sharing the Notification Originator's
value of SnmpEngineId with Notification Receiver. To facilitate that
we will use static (e.g. not autogenerated) version of snmpEngineId.

Functionally similar to:

| $ snmptrap -v3 -e 8000000001020304 -l authPriv -u usr-sha-aes -A authkey1 -X privkey1 -a SHA -x AES demo.snmplabs.com 12345 1.3.6.1.4.1.20408.4.1.1.2 1.3.6.1.2.1.1.1.0 s "my system"

"""#
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    sendNotification(
        SnmpEngine(OctetString(hexValue='8000000001020304')),
        UsmUserData('usr-sha-aes128', 'authkey1', 'privkey1',
                    authProtocol=usmHMACSHAAuthProtocol,
                    privProtocol=usmAesCfb128Protocol),
        UdpTransportTarget(('demo.snmplabs.com', 162)),
        ContextData(),
        'trap',
        NotificationType(ObjectIdentity('SNMPv2-MIB', 'authenticationFailure'))
    )
)

if errorIndication:
    print(errorIndication)