/usr/share/doc/python-pysnmp4-doc/examples/v3arch/agent/cmdrsp/v3-multiple-users.py is in python-pysnmp4-doc 4.2.5-1.
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# Command Responder
#
# Listen and respond to SNMP GET/SET/GETNEXT/GETBULK queries with
# the following options:
#
# * SNMPv3
# * with USM user 'usr-md5-des', auth: MD5, priv DES or
# with USM user 'usr-sha-none', auth: SHA, no privacy
# with USM user 'usr-sha-aes128', auth: SHA, priv AES
# * allow access to SNMPv2-MIB objects (1.3.6.1.2.1)
# * over IPv4/UDP, listening at 127.0.0.1:161
#
# Either of the following Net-SNMP's commands will walk this Agent:
#
# $ snmpwalk -v3 -u usr-md5-des -l authPriv -A authkey1 -X privkey1 localhost .1.3.6
# $ snmpwalk -v3 -u usr-sha-none -l authNoPriv -a SHA -A authkey1 localhost .1.3.6
# $ snmpwalk -v3 -u usr-sha-aes128 -l authPriv -a SHA -A authkey1 -x AES -X privkey1 localhost .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
snmpEngine = engine.SnmpEngine()
# Transport setup
# UDP over IPv4
config.addTransport(
snmpEngine,
udp.domainName,
udp.UdpTransport().openServerMode(('127.0.0.1', 161))
)
# SNMPv3/USM setup
# user: usr-md5-des, auth: MD5, priv DES
config.addV3User(
snmpEngine, 'usr-md5-des',
config.usmHMACMD5AuthProtocol, 'authkey1',
config.usmDESPrivProtocol, 'privkey1'
)
# user: usr-sha-none, auth: SHA, priv NONE
config.addV3User(
snmpEngine, 'usr-sha-none',
config.usmHMACSHAAuthProtocol, 'authkey1'
)
# user: usr-sha-none, auth: SHA, priv AES
config.addV3User(
snmpEngine, 'usr-sha-aes128',
config.usmHMACSHAAuthProtocol, 'authkey1',
config.usmAesCfb128Protocol, 'privkey1'
)
# Allow full MIB access for each user at VACM
config.addVacmUser(snmpEngine, 3, 'usr-md5-des', 'authPriv', (1,3,6,1,2,1), (1,3,6,1,2,1))
config.addVacmUser(snmpEngine, 3, 'usr-sha-none', 'authNoPriv', (1,3,6,1,2,1), (1,3,6,1,2,1))
config.addVacmUser(snmpEngine, 3, 'usr-sha-aes128', 'authPriv', (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
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