SNMPv3 native API examples extended to cover many use cases

1 files changed, 65 insertions, 0 deletions

diff --git a/examples/v3arch/agent/cmdrsp/v2c-multiple-interfaces.py b/examples/v3arch/agent/cmdrsp/v2c-multiple-interfaces.py
new file mode 100644
index 0000000..72ef318
--- /dev/null
+++ b/examples/v3arch/agent/cmdrsp/v2c-multiple-interfaces.py
@@ -0,0 +1,65 @@
+#
+# Command Responder
+#
+# Listen and respond to SNMP GET/SET/GETNEXT/GETBULK queries with
+# the following options:
+#
+# * SNMPv2c
+# * with SNMP community "public"
+# * allow access to SNMPv2-MIB objects (1.3.6.1.2.1)
+# * over IPv4/UDP, listening at 127.0.0.1:161 and 127.0.0.2:161 interfaces
+# 
+# Either of the following Net-SNMP's commands will walk this Agent:
+#
+# $ snmpwalk -v2c -c public 127.0.0.1 .1.3.6
+# $ snmpwalk -v2c -c public 127.0.0.2 .1.3.6
+#
+from pysnmp.entity import engine, config
+from pysnmp.entity.rfc3413 import cmdrsp, context
+from pysnmp.carrier.asynsock.dgram import udp
+
+# Create SNMP engine with autogenernated engineID and pre-bound
+# to socket transport dispatcher
+snmpEngine = engine.SnmpEngine()
+
+# Transport setup
+
+# UDP over IPv4 at 127.0.0.1:161
+config.addSocketTransport(
+    snmpEngine,
+    udp.domainName + (1,),
+    udp.UdpTransport().openServerMode(('127.0.0.1', 161))
+)
+# UDP over IPv4 at 127.0.0.2:161
+config.addSocketTransport(
+    snmpEngine,
+    udp.domainName + (2,),
+    udp.UdpTransport().openServerMode(('127.0.0.2', 161))
+)
+
+# SNMPv2c setup
+
+# SecurityName <-> CommunityName mapping.
+config.addV1System(snmpEngine, 'my-area', 'public')
+
+# Allow full MIB access for this user / securityModels at VACM
+config.addVacmUser(snmpEngine, 2, 'my-area', 'noAuthNoPriv', (1,3,6,1,2,1), (1,3,6,1,2,1))
+
+# Get default SNMP context this SNMP engine serves
+snmpContext = context.SnmpContext(snmpEngine)
+
+# Register SNMP Applications at the SNMP engine for particular SNMP context
+cmdrsp.GetCommandResponder(snmpEngine, snmpContext)
+cmdrsp.SetCommandResponder(snmpEngine, snmpContext)
+cmdrsp.NextCommandResponder(snmpEngine, snmpContext)
+cmdrsp.BulkCommandResponder(snmpEngine, snmpContext)
+
+# Register an imaginary never-ending job to keep I/O dispatcher running forever
+snmpEngine.transportDispatcher.jobStarted(1)
+
+# Run I/O dispatcher which would receive queries and send responses
+try:
+    snmpEngine.transportDispatcher.runDispatcher()
+except:
+    snmpEngine.transportDispatcher.closeDispatcher()
+    raise