CODEWITHSUNDEEP
snmpciscopysnmpvlan
Dwight
Dwight

Reputation: 15

How to pull MAC addresses per vlan using SNMPv3 from cisco switch?

I want to pull all the MAC addresses that the switch knows about. I found in SNMPv2

This command is successful from a linux terminal

snmpwalk -v2c  -c SNMPCommunity@10 10.10.10.10 .1.3.6.1.2.1.17.4.3.1.1

This command needs to have the "@10" inserted but I have no idea where.

snmpwalk -v3  -l authPriv -u username -a SHA -A authpriv  -x DES -X authkey 10.10.10.10 .1.3.6.1.2.1.17.4.3.1.1

The above command only pulls MAC addresses from VLAN1. I tried username@10 - but then I get bad username

Big picture. I'm trying to pull them with a python script using pysnmp. I got everything working but this last part.

Upvotes: 1

Views: 1591

Answers (1)

Ilya Etingof
Ilya Etingof

Reputation: 5555

To get pysnmp using non-default SNMP context name, just pass your context name in form of ContextName object as contextData parameter to nextCmd().

from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    getCmd(SnmpEngine(),
           UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
           UdpTransportTarget(('demo.pysnmp.com', 161)),
           ContextData(contextName='vlan-10'),
           ObjectType(ObjectIdentity('1.3.6.1.2.1.17.4.3.1.1')))
)

https://docs.lextudio.com/pysnmp/

Upvotes: 0

Related Questions