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"""
Fetch fixed amount of MIB variables
+++++++++++++++++++++++++++++++++++
Send a series of SNMP GETNEXT requests using the following options:
* with SNMPv3, user 'usr-sha-aes128', SHA auth, AES128 privacy
* over UDP/IPv4
* to an Agent at demo.snmplabs.com:161
* for all OIDs past SNMPv2-MIB
* run till end-of-mib condition is reported by Agent OR maxRows == 100
* ignoring non-increasing OIDs whenever reported by Agent
Functionally similar to:
| $ snmpwalk -v3 -lauthPriv -u usr-sha-aes128 -A authkey1 -X privkey1 \
| -a MD5 -x AES demo.snmplabs.com \
| SNMPv2-MIB::system
"""#
from pysnmp.entity.rfc3413.oneliner.cmdgen import *
for errorIndication, \
errorStatus, errorIndex, \
varBinds in nextCmd(SnmpEngine(),
UsmUserData('usr-sha-aes128', 'authkey1', 'privkey1',
authProtocol=usmHMACSHAAuthProtocol,
privProtocol=usmAesCfb128Protocol),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('SNMPv2-MIB')),
maxRows=100, ignoreNonIncreasingOid=True):
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 ]))
|
