# GET Command Generator
from twisted.internet import reactor,defer
from pysnmp.entity import engine,config
from pysnmp.carrier.twisted import dispatch
from pysnmp.carrier.twisted.dgram import udp
from pysnmp.entity.rfc3413.twisted import cmdgen
snmpEngine = engine.SnmpEngine()
# Set Twisted dispatcher
snmpEngine.registerTransportDispatcher(dispatch.TwistedDispatcher())
# v1/2 setup
config.addV1System(snmpEngine, 'test-agent', 'public')
# v3 setup
config.addV3User(
snmpEngine, 'test-user',
config.usmHMACMD5AuthProtocol, 'authkey1',
config.usmDESPrivProtocol, 'privkey1'
)
# Transport params
config.addTargetParams(snmpEngine, 'myParams', 'test-user', 'authPriv')
#config.addTargetParams(snmpEngine, 'myParams', 'test-agent', 'noAuthNoPriv', 1)
# Transport addresses
config.addTargetAddr(
snmpEngine, 'myRouter', config.snmpUDPDomain,
('127.0.0.1', 161), 'myParams'
)
# Transport
config.addSocketTransport(
snmpEngine,
udp.domainName,
udp.UdpTwistedTransport().openClientMode()
)
# Twisted API follows
def receiveResponse((errorIndication, errorStatus, errorIndex, varBinds)):
if errorIndication or errorStatus:
print 'Error: ', errorIndication, errorStatus.prettyPrint(), errorIndex
reactor.stop()
return
for oid, val in varBinds:
if val is None:
print oid.prettyPrint()
else:
print '%s = %s' % (oid.prettyPrint(), val.prettyPrint())
reactor.stop()
getCmdGen = cmdgen.GetCommandGenerator()
df = getCmdGen.sendReq(
snmpEngine, 'myRouter', (((1,3,6,1,2,1,1,1,0), None),)
)
df.addCallback(receiveResponse)
reactor.run()
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