Various SNMP versions#
SNMPv1#
Send SNMP GET request using the following options:
with SNMPv1, community ‘public’
over IPv4/UDP
to an Agent at demo.snmplabs.com:161
for an instance of SNMPv2-MIB::sysDescr.0 MIB object
Based on asyncio I/O framework
Functionally similar to:
$ snmpget -v1 -c public demo.pysnmp.com SNMPv2-MIB::sysDescr.0
import asyncio
from pysnmp.hlapi.v3arch.asyncio import *
async def run():
snmpEngine = SnmpEngine()
iterator = getCmd(
snmpEngine,
CommunityData("public", mpModel=0),
await UdpTransportTarget.create(("demo.pysnmp.com", 161)),
ContextData(),
ObjectType(ObjectIdentity("SNMPv2-MIB", "sysDescr", 0)),
)
errorIndication, errorStatus, errorIndex, varBinds = await iterator
if errorIndication:
print(errorIndication)
elif errorStatus:
print(
"{} at {}".format(
errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or "?",
)
)
else:
for varBind in varBinds:
print(" = ".join([x.prettyPrint() for x in varBind]))
snmpEngine.closeDispatcher()
asyncio.run(run())
Download
script.
Bulk walk MIB#
Send a series of SNMP GETBULK requests using the following options:
with SNMPv3, user ‘usr-none-none’, no authentication, no privacy
over IPv4/UDP
to an Agent at demo.pysnmp.com:161
for all OIDs past SNMPv2-MIB::system
run till end-of-mib condition is reported by Agent
based on asyncio I/O framework
Functionally similar to:
$ snmpbulkwalk -v3 -lnoAuthNoPriv -u usr-none-none -Cn0 -Cr50
demo.pysnmp.com SNMPv2-MIB::system
import asyncio
from pysnmp.hlapi.v3arch.asyncio import *
async def run(varBinds):
snmpEngine = SnmpEngine()
while True:
errorIndication, errorStatus, errorIndex, varBindTable = await bulkCmd(
snmpEngine,
UsmUserData("usr-none-none"),
await UdpTransportTarget.create(("demo.pysnmp.com", 161)),
ContextData(),
0,
50,
*varBinds,
)
if errorIndication:
print(errorIndication)
break
elif errorStatus:
print(
f"{errorStatus.prettyPrint()} at {varBinds[int(errorIndex) - 1][0] if errorIndex else '?'}"
)
else:
for varBind in varBindTable:
print(" = ".join([x.prettyPrint() for x in varBind]))
varBinds = varBindTable
if isEndOfMib(varBinds):
break
return
asyncio.run(
run([ObjectType(ObjectIdentity("TCP-MIB")), ObjectType(ObjectIdentity("IP-MIB"))])
)
Download
script.
See also: library reference.