Python : SNMP library PySNMP

[ PySNMP ]

SNMP library for Python
http://pysnmp.sourceforge.net/index.html

[ install pysnmp library ]

# python --version Python 2.7.3 # apt-get install python-pysnmp-common

[ sample usage ]

just referred to http://pysnmp.sourceforge.net/examples/current/index.html

- snmp get

# snmpget -v2c -c public -ObentU 127.0.0.1 1.3.6.1.2.1.1.1.0 1.3.6.1.2.1.1.6.0 .1.3.6.1.2.1.1.1.0 = STRING: "Linux mint-1 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64" .1.3.6.1.2.1.1.6.0 = STRING: "Sitting on the Dock of the Bay"

python script

# cat -n snmp-get.py     1  #!/usr/bin/env python     2     3  from pysnmp.entity.rfc3413.oneliner import cmdgen     4     5  cmdGen = cmdgen.CommandGenerator()     6     7  # snmp get     8  errorIndication, errorStatus, errorIndex, varBinds = cmdGen.getCmd(     9      cmdgen.CommunityData('public'),    10      cmdgen.UdpTransportTarget(('localhost', 161)),    11      '1.3.6.1.2.1.1.1.0',    12      '1.3.6.1.2.1.1.6.0'    13  )    14    15  # Check for errors    16  if errorIndication:    17      print(errorIndication)    18  else:    19      if int(errorStatus) != 0:    20          print('%s at %s' % (    21              errorStatus.prettyPrint(),    22              errorIndex and varBinds[int(errorIndex)-1] or '?'    23              )    24          )    25  # success    26      if int(errorStatus) == 0:    27          for name, val in varBinds:    28              print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))

# ./snmp-get.py 1.3.6.1.2.1.1.1.0 = Linux mint-1 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 1.3.6.1.2.1.1.6.0 = Sitting on the Dock of the Bay

- snmp bulkwalk

# snmpbulkwalk -c public -v2c localhost .1.3.6.1 -On -Cn0 -Cr25 | head -2 .1.3.6.1.2.1.1.1.0 = STRING: "Linux mint-1 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64" .1.3.6.1.2.1.1.2.0 = OID: .1.3.6.1.4.1.8072.3.2.10

about -Cn , -Cr arguments

-Cn<NUM>               Set the non-repeaters field in the GETBULK PDUs.   This  speci‐               fies  the number of supplied variables that should not be iter‐               ated over.  The default is 0.

python script

# cat -n snmp-bulkwalk.py     1  #!/usr/bin/env python     2     3  from pysnmp.entity.rfc3413.oneliner import cmdgen     4     5  cmdGen = cmdgen.CommandGenerator()     6     7  # snmp bulkwalk     8  errorIndication, errorStatus, errorIndex, varBindTable = cmdGen.bulkCmd(     9      cmdgen.CommunityData('public'),    10      cmdgen.UdpTransportTarget(('localhost', 161)),    11  # snmpbulkwalk -Cn0 -Cr25    12      0, 25,    13  # OID    14      '1.3.6.1',    15  )    16    17  # Check for errors    18  if errorIndication:    19      print(errorIndication)    20  else:    21      if int(errorStatus) != 0:    22          print('%s at %s' % (    23              errorStatus.prettyPrint(),    24              errorIndex and varBindTable[-1][int(errorIndex)-1] or '?'    25              )    26          )    27    28  # success    29      if int(errorStatus) == 0:    30          for varBindTableRow in varBindTable:    31                  for name, val in varBindTableRow:    32                      print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))

# ./snmp-bulkwalk.py  | head -2 1.3.6.1.2.1.1.1.0 = Linux mint-1 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 1.3.6.1.2.1.1.2.0 = 1.3.6.1.4.1.8072.3.2.10