Find mac address on python

Question

I have searched for an identifier and I tried to find mac address for any connected device on my server but the problem is that the output returns empty for example

a = os.popen("arp -a 192.168.6.150 | awk '{print $4}'").readlines()

a is empty

I'm working on captive portal page for untangle. I want to get the mac address from ip of device on network. This code runs on Apache server.

from mod_python import apache
from mod_python import util

I think the OP wants to get the MAC address of any device in the network, given its IP address (not the MAC of the machine running the code) — Don
– Don, Commented Aug 26, 2013 at 15:26
yes the IP in the same subnet, the problem is that all commands runs on terminal but not run on the page — Ahmed
– Ahmed, Commented Aug 27, 2013 at 11:23

Simon Sagi · Accepted Answer · 2013-08-26 15:23:07Z

4

The following function returns the mac or None if mac is not found.

import commands
def getmac(iface):
    mac = commands.getoutput("ifconfig " + iface + "| grep HWaddr | awk '{ print $5 }'")
    if len(mac)==17:
        return mac

getmac('eth0')

answered Aug 26, 2013 at 15:23

Simon Sagi

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Bugs · Accepted Answer · 2017-06-27 08:26:06Z

1

import re, uuid


print (' : '.join(re.findall('..', '%012x' % uuid.getnode())))

edited Jun 27, 2017 at 8:26

Bugs

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answered Jun 27, 2017 at 8:25

user8129296

1 Comment

user1600649 Over a year ago

The original problem is that the code doesn't run when requested from a webpage. It has little to do with the parsing method.

Ajay Kumar K K · Accepted Answer · 2019-01-23 10:07:32Z

0

You can also use python scapy module for the same

from scapy.all import *
def get_mac(ip_address):
    responses,unanswered = srp(Ether(dst="ff:ff:ff:ff:ff:ff")/ARP(pdst=ip_address),timeout=2,retry=10)
# return the MAC address from a response
    for s,r in responses:
        return r[Ether].src
    return None
get_mac("192.168.31.14")

answered Jan 23, 2019 at 10:07

Ajay Kumar K K

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