pysnmp 无法从不同机器接收陷阱

而不是 localhost IP ，我有我的 VM ip (eth0-192.168.12.20) 来接收陷阱通知，如果从 VM 外部生成一个陷阱，我不会收到任何陷阱（我正在使用另一台机器上的 snmptrap 命令）但我可以看到 SNMP当我在 VM 接口 eth0 上执行 tcpdump 时的数据。如果我使用 snmptrap 命令从同一台机器生成陷阱，我可以通过 PySNMP 陷阱接收器脚本查看陷阱数据。

尝试的选项： 1. 尝试将端口绑定到 0.0.0.0 以接收来自任何机器的陷阱 2. 在 pysnmp 中启用调试选项以获得解决问题的一些想法。从外部机器发送 snmptrap 时没有生成信息

与我的问题最接近的场景出现在以下链接中，该链接没有最终解决方案。

代码：SNMP v1 和 v2c：

from pysnmp.carrier.asynsock.dispatch import AsynsockDispatcher
from pysnmp.carrier.asynsock.dgram import udp, udp6
from pyasn1.codec.ber import decoder
from pysnmp.proto import api
from pysnmp.entity import engine, config
from pysnmp.entity.rfc3413 import ntfrcv

from pysnmp import debug
debug.setLogger(debug.Debug("all"))

### SNMPv2c/SNMPv1 setup
### Callback function for receiving notifications
def v2cv1CallBackFunc(snmpEngine, stateReference, contextEngineId, contextName,
                      varBinds, cbCtx):
    transportDomain, transportAddress = snmpEngine.msgAndPduDsp.getTransportInfo(stateReference)
    print transportDomain, transportAddress
    # Get an execution context...
    execContext = snmpEngine.observer.getExecutionContext(
        'rfc3412.receiveMessage:request'
    )

    # ... and use inner SNMP engine data to figure out peer address
    print('Notification from %s, ContextEngineId "%s", ContextName "%s"'
                          %('@'.join([str(x) for x in execContext['transportAddress']]),
                            contextEngineId.prettyPrint(), contextName.prettyPrint()))

    for name, val in varBinds:
        print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))


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

# SNMPv1/2c setup
# SecurityName <-> CommunityName mapping
config.addV1System(snmpEngine, 'my-area', "public")

# Specify security settings per SecurityName (SNMPv2c -> 1)
config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 1)

# Transport setup
# UDP over IPv4, first listening interface/port
config.addSocketTransport(
    snmpEngine,
    udp.domainName + (1, ),
    udp.UdpSocketTransport().openServerMode(('0.0.0.0', 162))
)

# Register SNMP Application at the SNMP engine
ntfrcv.NotificationReceiver(snmpEngine, v2cv1CallBackFunc)

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

提前致谢