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
|
"""
Set string value
++++++++++++++++
Send a SNMP SET request with the following options:
* with SNMPv3 with user 'usr-sha-none', SHA auth and no privacy protocols
* over IPv4/UDP
* to an Agent at 195.218.195.228:161
* for an OID in tuple form and a string-typed value
This script performs similar to the following Net-SNMP command:
| $ snmpset -v3 -l authNoPriv -u usr-sha-none -a SHA -A authkey1 -ObentU 195.218.195.228:161 1.3.6.1.2.1.1.9.1.3.1 s 'my new value'
"""#
from pysnmp.entity import engine, config
from pysnmp.carrier.asyncore.dgram import udp
from pysnmp.entity.rfc3413 import cmdgen
from pysnmp.proto import rfc1902
# Create SNMP engine instance
snmpEngine = engine.SnmpEngine()
#
# SNMPv3/USM setup
#
# user: usr-sha-none, auth: SHA, priv none
config.addV3User(
snmpEngine, 'usr-sha-none',
config.usmHMACSHAAuthProtocol, 'authkey1'
)
config.addTargetParams(snmpEngine, 'my-creds', 'usr-sha-none', 'authNoPriv')
#
# Setup transport endpoint and bind it with security settings yielding
# a target name
#
# UDP/IPv4
config.addTransport(
snmpEngine,
udp.domainName,
udp.UdpSocketTransport().openClientMode()
)
config.addTargetAddr(
snmpEngine, 'my-router',
udp.domainName, ('195.218.195.228', 161),
'my-creds'
)
# Error/response receiver
# noinspection PyUnusedLocal,PyUnusedLocal,PyUnusedLocal
def cbFun(snmpEngine, sendRequestHandle, errorIndication,
errorStatus, errorIndex, varBinds, cbCtx):
if errorIndication:
print(errorIndication)
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
for oid, val in varBinds:
print('%s = %s' % (oid.prettyPrint(), val.prettyPrint()))
# Prepare and send a request message
cmdgen.SetCommandGenerator().sendVarBinds(
snmpEngine,
'my-router',
None, '', # contextEngineId, contextName
[((1, 3, 6, 1, 2, 1, 1, 9, 1, 3, 1), rfc1902.OctetString('my new value'))],
cbFun
)
# Run I/O dispatcher which would send pending queries and process responses
snmpEngine.transportDispatcher.runDispatcher()
|
