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diff --git a/examples/v1arch/asyncore/manager/ntfrcv/v1-multiple-transports.py b/examples/v1arch/asyncore/manager/ntfrcv/v1-multiple-transports.py
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+"""
+Listen for notifications at IPv4 & IPv6 interfaces
+++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Receive SNMP TRAP messages with the following options:
+
+* SNMPv1/SNMPv2c
+* with SNMP community "public"
+* over IPv4/UDP, listening at 127.0.0.1:162
+* over IPv6/UDP, listening at [::1]:162
+* print received data on stdout
+
+Either of the following Net-SNMP commands will send notifications to this
+receiver:
+
+| $ snmptrap -v1 -c public 127.0.0.1 1.3.6.1.4.1.20408.4.1.1.2 127.0.0.1 1 1 123 1.3.6.1.2.1.1.1.0 s test
+| $ snmptrap -v2c -c public udp6:[::1] 123 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.5.0 s test
+
+Notification Receiver below uses two different transports for communication
+with Notification Originators - UDP over IPv4 and UDP over IPv6.
+
+"""#
+from pysnmp.carrier.asyncore.dispatch import AsyncoreDispatcher
+from pysnmp.carrier.asyncore.dgram import udp, udp6, unix
+from pyasn1.codec.ber import decoder
+from pysnmp.proto import api
+
+def cbFun(transportDispatcher, transportDomain, transportAddress, wholeMsg):
+ while wholeMsg:
+ msgVer = int(api.decodeMessageVersion(wholeMsg))
+ if msgVer in api.protoModules:
+ pMod = api.protoModules[msgVer]
+ else:
+ print('Unsupported SNMP version %s' % msgVer)
+ return
+ reqMsg, wholeMsg = decoder.decode(
+ wholeMsg, asn1Spec=pMod.Message(),
+ )
+ print('Notification message from %s:%s: ' % (
+ transportDomain, transportAddress
+ )
+ )
+ reqPDU = pMod.apiMessage.getPDU(reqMsg)
+ if reqPDU.isSameTypeWith(pMod.TrapPDU()):
+ if msgVer == api.protoVersion1:
+ print('Enterprise: %s' % (
+ pMod.apiTrapPDU.getEnterprise(reqPDU).prettyPrint()
+ )
+ )
+ print('Agent Address: %s' % (
+ pMod.apiTrapPDU.getAgentAddr(reqPDU).prettyPrint()
+ )
+ )
+ print('Generic Trap: %s' % (
+ pMod.apiTrapPDU.getGenericTrap(reqPDU).prettyPrint()
+ )
+ )
+ print('Specific Trap: %s' % (
+ pMod.apiTrapPDU.getSpecificTrap(reqPDU).prettyPrint()
+ )
+ )
+ print('Uptime: %s' % (
+ pMod.apiTrapPDU.getTimeStamp(reqPDU).prettyPrint()
+ )
+ )
+ varBinds = pMod.apiTrapPDU.getVarBindList(reqPDU)
+ else:
+ varBinds = pMod.apiPDU.getVarBindList(reqPDU)
+ print('Var-binds:')
+ for oid, val in varBinds:
+ print('%s = %s' % (oid.prettyPrint(), val.prettyPrint()))
+ return wholeMsg
+
+transportDispatcher = AsyncoreDispatcher()
+
+transportDispatcher.registerRecvCbFun(cbFun)
+
+# UDP/IPv4
+transportDispatcher.registerTransport(
+ udp.domainName, udp.UdpSocketTransport().openServerMode(('localhost', 162))
+)
+
+# UDP/IPv6
+transportDispatcher.registerTransport(
+ udp6.domainName, udp6.Udp6SocketTransport().openServerMode(('::1', 162))
+)
+
+## Local domain socket
+#transportDispatcher.registerTransport(
+# unix.domainName, unix.UnixSocketTransport().openServerMode('/tmp/snmp-manager')
+#)
+
+transportDispatcher.jobStarted(1)
+
+try:
+ # Dispatcher will never finish as job#1 never reaches zero
+ transportDispatcher.runDispatcher()
+except:
+ transportDispatcher.closeDispatcher()
+ raise