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Commandline Tool to export current registered users at APs from an Cisco Wireless LAN Controller (WLC)

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This tool exports all current clients on all APs assigned to the WLC. You can export as CSV or as table.

Download: https://gist.github.com/lanbugs/6dc874ad0736424c5c7808f01ec78f96

$ python cisco_ap_clients_grabber.py -h
usage: cisco_ap_clients_grabber.py [-h] -H HOST -v SNMP_VERSION
                                   [-C SNMP_COMMUNITY] [-u SNMP_USER]
                                   [-A SNMP_AUTH] [-a SNMP_AUTH_METHOD]
                                   [-X SNMP_PRIVACY] [-x SNMP_PRIVACY_METHOD]
                                   [-L SNMP_SECURITY] [--csv]

Cisco AP clients grabber Version 0.1 Written by Maximilian Thoma 2017

optional arguments:
  -h, --help            show this help message and exit
  -H HOST               WLC IP address
  -v SNMP_VERSION       SNMP version, valid are 2 or 3
  -C SNMP_COMMUNITY     SNMP Community (only v2)
  -u SNMP_USER          SNMP user (v3)
  -A SNMP_AUTH          SNMP auth password (v3)
  -a SNMP_AUTH_METHOD   SNMP auth method, valid are MD5 or SHA (v3)
  -X SNMP_PRIVACY       SNMP privacy password (v3)
  -x SNMP_PRIVACY_METHOD
                        SNMP privacy method, valid are AES or DES (v3)
  -L SNMP_SECURITY      SNMP security level, valid are no_auth_or_privacy,
                        auth_without_privacy or auth_with_privacy (v3)
  --csv                 Result should be CSV

Demo:

>python cisco_ap_clients_grabber.py -H 1.1.1.1 -v 3 -u username -A authpass -a MD5 -X privpass -x DES -L auth_with_privacy
| IP            | MAC               | Name                               | SSID         | SSID MAC          |
|---------------+-------------------+------------------------------------+--------------+-------------------|
| 10.10.10.1    | C0:FF:EE:C0:FF:EE | host/client0001.m.local            | workstations | DE:AD:BE:EF:00:00 |
| 10.10.10.2    | C0:FF:EE:C0:FF:EE | host/client0002.m.local            | workstations | DE:AD:BE:EF:00:00 |
| 10.10.10.3    | C0:FF:EE:C0:FF:EE | host/client0003.m.local            | workstations | DE:AD:BE:EF:00:00 |
| 10.10.10.4    | C0:FF:EE:C0:FF:EE | host/client0004.m.local            | workstations | DE:AD:BE:EF:00:00 |
| 10.10.10.5    | C0:FF:EE:C0:FF:EE | host/client0005.m.local            | workstations | DE:AD:BE:EF:00:00 |
| 10.10.45.200  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.201  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.202  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.203  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.204  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.205  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |
| 10.10.45.206  | C0:FF:EE:C0:FF:EE |                                    | guests       | DE:AD:BE:EF:00:00 |

Script:

#!/usr/bin/env python

# Need following pip packages
# - easysnmp
# - tabulate

# Checkout blog article to tool
# https://lanbugs.de/netzwerktechnik/commandline-tool-to-export-current-registered-users-at-aps-from-an-cisco-wireless-lan-controller-wlc/

from easysnmp import Session
import argparse
from tabulate import tabulate
from operator import itemgetter


def main():
    ####
    # ARGS
    ####
    description = """
    Cisco AP clients grabber\nVersion 0.1\nWritten by Maximilian Thoma 2018
    """

    aparser = argparse.ArgumentParser(description=description)
    aparser.add_argument('-H', dest='host', help='WLC IP address', required=True)
    aparser.add_argument('-v', dest='snmp_version', help='SNMP version, valid are 2 or 3', required=True)
    aparser.add_argument('-C', dest='snmp_community', help='SNMP Community (only v2)')
    aparser.add_argument('-u', dest='snmp_user', help='SNMP user (v3)')
    aparser.add_argument('-A', dest='snmp_auth', help='SNMP auth password (v3)')
    aparser.add_argument('-a', dest='snmp_auth_method', help='SNMP auth method, valid are MD5 or SHA (v3)')
    aparser.add_argument('-X', dest='snmp_privacy', help='SNMP privacy password (v3)')
    aparser.add_argument('-x', dest='snmp_privacy_method', help='SNMP privacy method, valid are AES or DES (v3)')
    aparser.add_argument('-L', dest='snmp_security',
                         help='SNMP security level, valid are no_auth_or_privacy, auth_without_privacy or auth_with_privacy (v3)')
    aparser.add_argument('--csv', dest='csv', help='Result should be CSV', action='store_true')
    args = aparser.parse_args()

    ####
    # Setup SNMP connection
    ####

    if args.snmp_version == "2":
        try:
            snmp = Session(hostname=args.host, version=2, use_numeric=True)

        except Exception as e:
            print e

    if args.snmp_version == "3":
        try:
            snmp = Session(
                hostname=args.host,
                version=3,
                security_level=args.snmp_security,
                security_username=args.snmp_user,
                auth_protocol=args.snmp_auth_method,
                auth_password=args.snmp_auth,
                privacy_protocol=args.snmp_privacy_method,
                privacy_password=args.snmp_privacy,
                use_numeric=True
            )

        except Exception as e:
            print e

    ####
    # Init Data Buffer
    ####

    inventory = []
    longids = []

    ####
    # SNMP Walk Clients inventory
    ####

    ## Get longids for clients
    result_longids = snmp.walk(".1.3.6.1.4.1.14179.2.1.4.1.1")

    for rl in result_longids:
        longids.append(rl.oid.replace(".1.3.6.1.4.1.14179.2.1.4.1.1.", "") + "." + rl.oid_index)

    ## Collect informations

    for id in longids:
        # Client MAC
        result_mac = snmp.get(".1.3.6.1.4.1.14179.2.1.4.1.1." + id)
        mac = ":".join(["%02s" % hex(ord(m))[2:] for m in result_mac.value]).replace(' ', '0').upper()

        # Client Name
        name = snmp.get(".1.3.6.1.4.1.14179.2.1.4.1.3." + id).value

        # Client IP
        ip = snmp.get(".1.3.6.1.4.1.14179.2.1.4.1.2." + id).value

        # SSID
        ssid = snmp.get(".1.3.6.1.4.1.14179.2.1.4.1.7." + id).value

        # SSID MAC
        result_ssid_mac = snmp.get(".1.3.6.1.4.1.14179.2.1.4.1.4." + id)
        ssid_mac = ":".join(["%02s" % hex(ord(m))[2:] for m in result_ssid_mac.value]).replace(' ', '0').upper()

        inventory.append([ip, mac, name, ssid, ssid_mac])

    ###
    # Sort table
    ####

    inv = sorted(inventory, key=itemgetter(0))

    ####
    # Result
    ####

    if args.csv is True:

        print 'IP;MAC;Name;SSID;SSID MAC'

        for ip, mac, name, ssid, ssid_mac in inv:
            print '%s;%s;%s;%s;%s' % (ip, mac, name, ssid, ssid_mac)

    else:
        print tabulate(inv, headers=["IP", "MAC", "Name", "SSID", "SSID MAC"], tablefmt="orgtbl")


if __name__ == "__main__":
    main()

 

 


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