MIB tweaks¶
Waive MIB lookup¶
Perform SNMP GETNEXT operation with the following options:
with SNMPv2c, community ‘public’
over IPv4/UDP
to an Agent at demo.snmplabs.com:161
for an OID in string form
do not resolve response OIDs and values into human-freidly form
False lookupMib keyword arguments could make pysnmp waiving OIDs and values resolution in response variable-bindings, into human friendly form.
Functionally similar to:
from pysnmp.hlapi import *
for (errorIndication,
errorStatus,
errorIndex,
varBinds) in nextCmd(SnmpEngine(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('1.3.6.1.2.1.1')),
lookupMib=False):
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.
Preload PySNMP MIBs¶
Send a series of SNMP GETNEXT requests using the following options:
with SNMPv3 with user ‘usr-md5-des’, MD5 auth and DES privacy protocols
over IPv4/UDP
to an Agent at demo.snmplabs.com:161
for all OIDs starting from 1.3.6
preload all Python MIB modules found in search path
Functionally similar to:
from pysnmp.hlapi import *
for (errorIndication,
errorStatus,
errorIndex,
varBinds) in nextCmd(SnmpEngine(),
UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('1.3.6').loadMibs())):
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.
Custom ASN.1 MIB path¶
Send SNMP GET request using the following options:
with SNMPv2c, community ‘public’
over IPv4/UDP
to an Agent at demo.snmplabs.com:161
for IF-MIB::ifInOctets.1 MIB object
pass non-default ASN.1 MIB source to MIB compiler
Functionally similar to:
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
getCmd(SnmpEngine(),
CommunityData('public'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('IF-MIB', 'ifInOctets', 1).addAsn1MibSource('file:///usr/share/snmp',
'http://mibs.snmplabs.com/asn1/@mib@')))
)
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.
Custom PySNMP MIBs location¶
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.snmplabs.com:161
for all OIDs within TCP-MIB::tcpConnTable column
TCP-MIB Python module will be searched by a user-specified filesystem path (/opt/mib/pysnmp) and in Python package (python_packaged_mibs) which should be in sys.path
Functionally similar to:
from pysnmp.hlapi import *
for (errorIndication,
errorStatus,
errorIndex,
varBinds) in bulkCmd(SnmpEngine(),
UsmUserData('usr-none-none'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
0, 50,
ObjectType(
ObjectIdentity('TCP-MIB', 'tcpConnTable').addMibSource('/opt/mibs/pysnmp').addMibSource('python_packaged_mibs')
),
lexicographicMode=False):
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.