Common notifications¶
SNMPv2c TRAP via NOTIFICATION-TYPE¶
Initialize TRAP message contents from variables specified in NOTIFICATION-TYPE SMI macro.
SNMPv2c
with community name ‘public’
over IPv4/UDP
send TRAP notification
with TRAP ID ‘linkUp’ specified as a MIB symbol
include values for managed objects implicitly added to notification (via NOTIFICATION-TYPE->OBJECTS)
Functionally similar to:
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
sendNotification(
SnmpEngine(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 162)),
ContextData(),
'trap',
NotificationType(
ObjectIdentity('IF-MIB', 'linkUp'),
instanceIndex=(123,),
objects={('IF-MIB', 'ifIndex'): 123,
('IF-MIB', 'ifAdminStatus'): 'up',
('IF-MIB', 'ifOperStatus'): 'up'}
)
)
)
if errorIndication:
print(errorIndication)
Download
script.
INFORM, auth: MD5 privacy: DES¶
Send SNMP INFORM notification using the following options:
SNMPv3
with user ‘usr-md5-des’, auth: MD5, priv DES
over IPv4/UDP
send INFORM notification
with TRAP ID ‘warmStart’ specified as a string OID
include managed object information 1.3.6.1.2.1.1.5.0 = ‘system name’
Functionally similar to:
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
sendNotification(
SnmpEngine(),
UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
UdpTransportTarget(('demo.snmplabs.com', 162)),
ContextData(),
'inform',
NotificationType(
ObjectIdentity('1.3.6.1.6.3.1.1.5.2')
).addVarBinds(
ObjectType(ObjectIdentity('1.3.6.1.2.1.1.5.0'), 'system name')
)
)
)
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]))
Download
script.
SNMPv1 TRAP with defaults¶
Send SNMPv1 TRAP through unified SNMPv3 message processing framework using the following options:
SNMPv1
with community name ‘public’
over IPv4/UDP
send TRAP notification
with Generic Trap #1 (warmStart) and Specific Trap 0
with default Uptime
with default Agent Address
with Enterprise OID 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:
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
sendNotification(
SnmpEngine(),
CommunityData('public', mpModel=0),
UdpTransportTarget(('demo.snmplabs.com', 162)),
ContextData(),
'trap',
NotificationType(
ObjectIdentity('1.3.6.1.6.3.1.1.5.2')
).addVarBinds(
('1.3.6.1.6.3.1.1.4.3.0', '1.3.6.1.4.1.20408.4.1.1.2'),
('1.3.6.1.2.1.1.1.0', OctetString('my system'))
)
)
)
if errorIndication:
print(errorIndication)
Download
script.
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:
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)
Download
script.
See also: library reference.