1""" 2Serve multiple network transports 3+++++++++++++++++++++++++++++++++ 4 5Listen and respond to SNMP GET/SET/GETNEXT/GETBULK queries with 6the following options: 7 8* SNMPv2c 9* with SNMP community "public" 10* allow access to SNMPv2-MIB objects (1.3.6.1.2.1) 11* over IPv4/UDP, listening at 127.0.0.1:161 and 12 over IPv6/UDP, listening at [::1]:161 13 14Either of the following Net-SNMP commands will walk this Agent: 15 16| $ snmpwalk -v2c -c public 127.0.0.1 .1.3.6 17| $ snmpwalk -v2c -c public udp6:[::1] .1.3.6 18 19"""# 20from pysnmp.entity import engine, config 21from pysnmp.entity.rfc3413 import cmdrsp, context 22from pysnmp.carrier.asyncore.dgram import udp, udp6 23 24# Create SNMP engine with autogenernated engineID and pre-bound 25# to socket transport dispatcher 26snmpEngine = engine.SnmpEngine() 27 28# Transport setup 29 30# UDP over IPv4 at 127.0.0.1:161 31config.addTransport( 32 snmpEngine, 33 udp.domainName, 34 udp.UdpTransport().openServerMode(('127.0.0.1', 161)) 35) 36# UDP over IPv6 at [::1]:161 37config.addTransport( 38 snmpEngine, 39 udp6.domainName, 40 udp6.Udp6Transport().openServerMode(('::1', 161)) 41) 42 43# SNMPv2c setup 44 45# SecurityName <-> CommunityName mapping. 46config.addV1System(snmpEngine, 'my-area', 'public') 47 48# Allow full MIB access for this user / securityModels at VACM 49config.addVacmUser(snmpEngine, 2, 'my-area', 'noAuthNoPriv', (1, 3, 6, 1, 2, 1), (1, 3, 6, 1, 2, 1)) 50 51# Get default SNMP context this SNMP engine serves 52snmpContext = context.SnmpContext(snmpEngine) 53 54# Register SNMP Applications at the SNMP engine for particular SNMP context 55cmdrsp.GetCommandResponder(snmpEngine, snmpContext) 56cmdrsp.SetCommandResponder(snmpEngine, snmpContext) 57cmdrsp.NextCommandResponder(snmpEngine, snmpContext) 58cmdrsp.BulkCommandResponder(snmpEngine, snmpContext) 59 60# Register an imaginary never-ending job to keep I/O dispatcher running forever 61snmpEngine.transportDispatcher.jobStarted(1) 62 63# Run I/O dispatcher which would receive queries and send responses 64try: 65 snmpEngine.transportDispatcher.runDispatcher() 66except: 67 snmpEngine.transportDispatcher.closeDispatcher() 68 raise 69