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"""
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
* 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.entity.rfc3413.oneliner.cmdgen import *
for errorIndication, \
errorStatus, \
errorIndex, \
varBinds in nextCmd(SnmpEngine(),
CommunityData('public', mpModel=0),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
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')),
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 ]))
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