1 files changed, 65 insertions, 0 deletions
diff --git a/examples/v3arch/asyncore/agent/cmdrsp/v1-read-and-write-communities.py b/examples/v3arch/asyncore/agent/cmdrsp/v1-read-and-write-communities.py
new file mode 100644
index 0000000..5780025
--- /dev/null
+++ b/examples/v3arch/asyncore/agent/cmdrsp/v1-read-and-write-communities.py
@@ -0,0 +1,65 @@
+"""
+Multiple SNMP communities
++++++++++++++++++++++++++
+
+Respond to SNMP GET/SET/GETNEXT queries with the following options:
+
+* SNMPv1
+* with SNMP community "public" (read access) or "private" (write access)
+* allow access to SNMPv2-MIB objects (1.3.6.1.2.1)
+* over IPv4/UDP, listening at 127.0.0.1:161
+
+Allow read/write access to all objects in the same MIB subtree.
+
+The following Net-SNMP's commands will GET/SET a value at this Agent:
+
+| $ snmpget -v1 -c public 127.0.0.1 SNMPv2-MIB::sysLocation.0
+| $ snmpset -v1 -c private 127.0.0.1 SNMPv2-MIB::sysLocation.0 s "far away"
+
+"""#
+from pysnmp.entity import engine, config
+from pysnmp.entity.rfc3413 import cmdrsp, context
+from pysnmp.carrier.asyncore.dgram import udp
+
+# Create SNMP engine with autogenernated engineID and pre-bound
+# to socket transport dispatcher
+snmpEngine = engine.SnmpEngine()
+
+# Transport setup
+
+# UDP over IPv4
+config.addTransport(
+    snmpEngine,
+    udp.domainName,
+    udp.UdpTransport().openServerMode(('127.0.0.1', 161))
+)
+
+# SNMPv1 setup
+
+# SecurityName <-> CommunityName mapping.
+# Here we configure two distinct CommunityName's to control read and write
+# operations.
+config.addV1System(snmpEngine, 'my-read-area', 'public')
+config.addV1System(snmpEngine, 'my-write-area', 'private')
+
+# Allow full MIB access for this user / securityModels at VACM
+config.addVacmUser(snmpEngine, 1, 'my-read-area', 'noAuthNoPriv', (1,3,6,1,2,1))
+config.addVacmUser(snmpEngine, 1, 'my-write-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)
+
+# 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