Table operations¶
GET table row¶
Send SNMP GET request using the following options:
- with SNMPv2c, community name “public”
- over IPv4/UDP
- to an Agent at demo.snmplabs.com:161
- with MIB lookup enabled
- for IF-MIB::ifInOctets.1 and IF-MIB::ifOutOctets.1 MIB object
Functionally similar to:
$ snmpget -v 2c -c public demo.snmplabs.com IF-MIB::ifInOctets.1 IF-MIB::ifOutOctets.1
from pysnmp.hlapi.v1arch import *
iterator = getCmd(
SnmpDispatcher(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ObjectType(ObjectIdentity('IF-MIB', 'ifInOctets', 1)),
ObjectType(ObjectIdentity('IF-MIB', 'ifOutOctets', 1)),
lookupMib=True
)
errorIndication, errorStatus, errorIndex, varBinds = next(iterator)
if errorIndication:
print(errorIndication)
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
for varBind in varBinds:
print(' = '.join([x.prettyPrint() for x in varBind]))
Download
script.
Fetch table row by composite index¶
Send SNMP GET request using the following options:
- with SNMPv2c, community ‘public’
- over IPv4/UDP
- to an Agent at demo.snmplabs.com:161
- for TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0 MIB object
- with MIB lookup enabled
Functionally similar to:
$ snmpget -v2c -c public demo.snmplabs.com TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0
from pysnmp.hlapi.v1arch import *
iterator = getCmd(
SnmpDispatcher(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ObjectType(
ObjectIdentity(
'TCP-MIB',
'tcpConnLocalAddress',
'0.0.0.0', 22,
'0.0.0.0', 0
)
).addAsn1MibSource('http://mibs.snmplabs.com/asn1/@mib@'),
lookupMib=True
)
errorIndication, errorStatus, errorIndex, varBinds = next(iterator)
if errorIndication:
print(errorIndication)
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
for varBind in varBinds:
print(' = '.join([x.prettyPrint() for x in varBind]))
Download
script.
Fetch scalar and table variables¶
Send a series of SNMP GETBULK requests using the following options:
- with SNMPv2c, community name “public”
- over IPv6/UDP
- to an Agent at demo.snmplabs.com:161
- with MIB lookup enabled
- with values non-repeaters = 1, max-repetitions = 25
- for IP-MIB::ipAdEntAddr and all columns of the IF-MIB::ifEntry table
- stop when response OIDs leave the scopes of the table
Functionally similar to:
$ snmpbulkwalk -v2c -c public -Cn1, -Cr25 demo.snmplabs.com IP-MIB::ipAdEntAddr IP-MIB::ipAddrEntry
from pysnmp.hlapi.v1arch import *
iterator = bulkCmd(
SnmpDispatcher(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
1, 25,
ObjectType(ObjectIdentity('IP-MIB', 'ipAdEntAddr')),
ObjectType(ObjectIdentity('IP-MIB', 'ipAddrEntry')),
lookupMib=True,
lexicographicMode=False
)
for errorIndication, errorStatus, errorIndex, varBinds in iterator:
if errorIndication:
print(errorIndication)
break
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
break
else:
for varBind in varBinds:
print(' = '.join([x.prettyPrint() for x in varBind]))
Download
script.
Fetch whole SNMP table¶
Send a series of SNMP GETNEXT requests using the following options:
- with SNMPv1, community ‘public’
- over IPv4/UDP
- to an Agent at demo.snmplabs.com:161
- for some columns of the IF-MIB::ifEntry table
- with MIB lookup enabled
- stop when response OIDs leave the scopes of initial OIDs
Functionally similar to:
$ snmpwalk -v1 -c public demo.snmplabs.com IF-MIB::ifDescr IF-MIB::ifType IF-MIB::ifMtu IF-MIB::ifSpeed IF-MIB::ifPhysAddress IF-MIB::ifType
from pysnmp.hlapi.v1arch import *
iterator = nextCmd(
SnmpDispatcher(),
CommunityData('public', mpModel=0),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ObjectType(ObjectIdentity('IF-MIB', 'ifDescr')),
ObjectType(ObjectIdentity('IF-MIB', 'ifType')),
ObjectType(ObjectIdentity('IF-MIB', 'ifMtu')),
ObjectType(ObjectIdentity('IF-MIB', 'ifSpeed')),
ObjectType(ObjectIdentity('IF-MIB', 'ifPhysAddress')),
ObjectType(ObjectIdentity('IF-MIB', 'ifType')),
lookupMib=True,
lexicographicMode=False
)
for errorIndication, errorStatus, errorIndex, varBinds in iterator:
if errorIndication:
print(errorIndication)
break
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex)-1][0] or '?'))
break
else:
for varBind in varBinds:
print(' = '.join([x.prettyPrint() for x in varBind]))
Download
script.
See also: library reference.