Table operations¶
GET table row¶
Send SNMP GET request 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 IF-MIB::ifInOctets.1 and IF-MIB::ifOutOctets.1 MIB object
- perform response OIDs and values resolution at MIB
Functionally similar to:
$ snmpget -v3 -l authPriv -u usr-md5-des -A authkey1 -X privkey1
demo.snmplabs.com
IF-MIB::ifInOctets.1 IF-MIB::ifOutOctets.1
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
getCmd(SnmpEngine(),
UsmUserData('usr-none-none'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('IF-MIB', 'ifInOctets', 1)),
ObjectType(ObjectIdentity('IF-MIB', 'ifOutOctets', 1)))
)
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.
Fetch table row by composite index¶
Send SNMP GET request using the following options:
- with SNMPv3, user ‘usr-sha-aes128’, SHA auth, AES128 privacy
- over IPv4/UDP
- to an Agent at demo.snmplabs.com:161
- for TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0 MIB object
Functionally similar to:
$ snmpget -v3 -l authPriv -u usr-md5-des -A authkey1 -X privkey1
-a SHA -x AES
demo.snmplabs.com
TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0
from pysnmp.hlapi import *
errorIndication, errorStatus, errorIndex, varBinds = next(
getCmd(SnmpEngine(),
UsmUserData('usr-sha-aes128', 'authkey1', 'privkey1',
authProtocol=usmHMACSHAAuthProtocol,
privProtocol=usmAesCfb128Protocol ),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('TCP-MIB',
'tcpConnLocalAddress',
'0.0.0.0', 22,
'0.0.0.0', 0))
)
)
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.
Fetch scalar and table variables¶
Send a series of SNMP GETBULK requests using the following options:
- with SNMPv3 with user ‘usr-md5-des’, MD5 auth and DES privacy protocols
- over IPv6/UDP
- to an Agent at [::1]:161
- with values non-repeaters = 1, max-repetitions = 25
- for IP-MIB::ipAdEntAddr and all columns of the IF-MIB::ifEntry table
- stop when response OIDs leave the scopes of the table
Functionally similar to:
$ snmpbulkwalk -v3 -lauthPriv -u usr-md5-des -A authkey1 -X privkey1
-Cn1, -Cr25
demo.snmplabs.com
IP-MIB::ipAdEntAddr
IP-MIB::ipAddrEntry
from pysnmp.hlapi import *
for errorIndication, \
errorStatus, errorIndex, \
varBinds in bulkCmd(SnmpEngine(),
UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
Udp6TransportTarget(('::1', 161)),
ContextData(),
1, 25,
ObjectType(ObjectIdentity('IP-MIB', 'ipAdEntAddr')),
ObjectType(ObjectIdentity('IP-MIB', 'ipAddrEntry')),
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.
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.hlapi 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 ]))
Download
script.
See also: library reference.