1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
"""
Notification to multiple addresses
++++++++++++++++++++++++++++++++++
Send SNMP TRAP notifications to multiple Managers using different
security settings:
* SNMPv2c
* with community name 'public'
* over IPv4/UDP
* send TRAP notification
* to multiple Managers at 127.0.0.1:162, 127.0.0.1:162
* 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 127.0.0.1 0 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.1.0 s 'Example notification' 1.3.6.1.2.1.1.5.0 s 'Notificator Example'
| $ snmptrap -v2c -c public 127.0.0.1 0 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.1.0 s 'Example notification' 1.3.6.1.2.1.1.5.0 s 'Notificator Example'
| $ snmptrap -v2c -c public 127.0.0.1 0 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.1.0 s 'Example notification' 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
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()
)
# First target
config.addTargetAddr(
snmpEngine,
"my-nms-1",
udp.domainName,
("127.0.0.1", 162),
"my-creds",
tagList="all-my-managers",
)
# Second target
config.addTargetAddr(
snmpEngine,
"my-nms-2",
udp.domainName,
("127.0.0.1", 162),
"my-creds",
tagList="all-my-managers",
)
# Third target
config.addTargetAddr(
snmpEngine,
"my-nms-3",
udp.domainName,
("127.0.0.1", 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()
# Build and submit notification message to dispatcher
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")),
],
)
print("Notifications are scheduled to be sent")
# Run I/O dispatcher which would send pending message and process response
snmpEngine.transportDispatcher.runDispatcher()
|
