如何從fdb表中獲取value mac和vlan使用python?
在bash snmpwalk的工作精細: 如何從python獲取SNMP數據?
snmpwalk -v2c -c pub 192.168.0.100 1.3.6.1.2.1.17.7.1.2.2.1.2
pysnmp:
import os, sys
import socket
import random
from struct import pack, unpack
from datetime import datetime as dt
from pysnmp.entity.rfc3413.oneliner import cmdgen
from pysnmp.proto.rfc1902 import Integer, IpAddress, OctetString
ip='192.168.0.100'
community='pub'
value=(1,3,6,1,2,1,17,7,1,2,2,1,2)
generator = cmdgen.CommandGenerator()
comm_data = cmdgen.CommunityData('server', community, 1) # 1 means version SNMP v2c
transport = cmdgen.UdpTransportTarget((ip, 161))
real_fun = getattr(generator, 'getCmd')
res = (errorIndication, errorStatus, errorIndex, varBinds)\
= real_fun(comm_data, transport, value)
if not errorIndication is None or errorStatus is True:
print "Error: %s %s %s %s" % res
else:
print "%s" % varBinds
輸出:[(的ObjectName(1.3.6.1.2.1.17.7.1.2.2.1.2),NoSuchInstance ( ''))]
import netsnmp
def getmac():
oid = netsnmp.VarList(netsnmp.Varbind('.1.3.6.1.2.1.17.7.1.2.2.1.2'))
res = netsnmp.snmpgetbulk(oid, Version = 2, DestHost='192.168.0.100',
Community='pub')
return res
print getmac()
輸出:('27','27','25','27','27','27','24','27','25','18','4', '27','25','27','27','25','27','27','27','27','27','27', '27',' 27','27','27','27','27','27','27','27','27','23', '25','27','27 '','27','25','27','25','27','27','25','27', '27','27','27','27' ,'27','27','27','27','25','27','27', '27','27','27','27','27', '27','27','27','27','27','25', '25','25','7','27','27','9',' 25','27','20','19','27','27', '27','27','27','27','27','27','27 '','27','27','27','27', '27','11','25','27','27','27','27','27' ,'27','27','27', '27','27','27','27','27','27','25','27','27' '27','2 7', '27','27','27','27','27','2','27','5','27','0','27','27' ', '27','27','27')
冷杉腳本(pysnmp)返回NoSuchInstance。第二個腳本(netsnmp)返回端口但沒有mac和vlan的列表。什麼不對?