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#
# GETNEXT Command Generator Application
#
# 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
# * resolve response OIDs and values into human-freidly form
# * stop when response OIDs leave the scopes of initial OIDs
#
# This script performs similar to the following Net-SNMP command:
#
# $ snmpwalk -v2c -c public demo.snmplabs.com 1.3.6.1.2.1.1
#
# The lookupNames and lookupValues keyword arguments will make pysnmp
# trying to resolve OIDs and values, in response variable-bindings,
# into human-friendly form. If response OIDs do not belong to any of
# currently loaded MIBs, unresolved OIDs and values will still be
# returned.
#
from pysnmp.entity.rfc3413.oneliner.cmdgen 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')),
lookupNames=True, lookupValues=True):
# Check for errors and print out results
if errorIndication:
print(errorIndication)
break
else:
if 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 ]))
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