Question

我正在使用pysnmp发送SNMP陷阱，其中包含以下代码（trap.py）source，

注意：X.X.X.X是我电脑的公共IP地址

from pysnmp.hlapi import *
from pysnmp import debug

hostname = 'X.X.X.X' ##public IP address of receiver
debug.setLogger(debug.Debug('msgproc'))
next(sendNotification(SnmpEngine(),
     CommunityData('public'),
     UdpTransportTarget((hostname, 162)),
     ContextData(),
     'trap',
     # sequence of custom OID-value pairs
     [ObjectType(ObjectIdentity('1.3.6.1.2.1.1.1.0'), OctetString('my string')),
      ObjectType(ObjectIdentity('1.3.6.1.2.1.1.3.0'), Integer32(42))]))

我使用pysnmp使用此代码（receiver.py）source

接收它

from pysnmp.entity import engine, config
from pysnmp.carrier.asyncore.dgram import udp
from pysnmp.entity.rfc3413 import ntfrcv

# Create SNMP engine with autogenernated engineID and pre-bound
# to socket transport dispatcher
snmpEngine = engine.SnmpEngine()

# Transport setup

# UDP over IPv4, first listening interface/port
config.addTransport(
    snmpEngine,
    udp.domainName + (1,),
    udp.UdpTransport().openServerMode(('X.X.X.X', 162))
)
# SNMPv1/2c setup

# SecurityName <-> CommunityName mapping
config.addV1System(snmpEngine, 'my-area', 'public')


# Callback function for receiving notifications
# noinspection PyUnusedLocal,PyUnusedLocal,PyUnusedLocal
def cbFun(snmpEngine, stateReference, contextEngineId, contextName,
          varBinds, cbCtx):
    print('Notification from ContextEngineId "%s", ContextName "%s"' % (contextEngineId.prettyPrint(),
                                                                        contextName.prettyPrint()))
    for name, val in varBinds:
        print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))


# Register SNMP Application at the SNMP engine
ntfrcv.NotificationReceiver(snmpEngine, cbFun)

snmpEngine.transportDispatcher.jobStarted(1)  # this job would never finish

# Run I/O dispatcher which would receive queries and send confirmations
try:
    snmpEngine.transportDispatcher.runDispatcher()
except:
    snmpEngine.transportDispatcher.closeDispatcher()
    raise

在receiver.py中，我收到错误

pysnmp.carrier.error.CarrierError：bind（）for（＆＃39; X.X.X.X＆＃39;，162）失败：[WinError 10049]请求的地址在其中无效上下文

我希望能够非本地发送SNMP陷阱。所以我用我的公共IP地址测试test.py.一切都在本地工作（如果我使用127.0.0.1）但不能使用公共IP地址。我应该安装其他SNMP软件来收听trap.py吗？

Answer 1

此错误：

pysnmp.carrier.error.CarrierError: bind() for ('X.X.X.X', 162) failed: [WinError 10049] The requested address is not valid in its context

与SNMP或pysnmp无关。它来自Windows TCP / IP堆栈。确保：

X.X.X.X地址作为运行接收器的计算机上的本地IP接口出现
Windows用户权限允许您绑定到1024以下的端口（例如，在这种情况下为162）。或者，您可以尝试绑定到非标准端口，例如1024+，看看是否有帮助。
Google for Windows错误10049，含义是什么

SNMP接收器使用pySNMP监听公共IP地址

1 个答案: