[SOLVED] how to map MAC with IP

T3RM1NVT0R · 03-23-2015, 02:15 AM

Paste the stuff that you have tried so far and what exactly you are trying to achieve for the subnet? Basically the output you are looking for.

NM04 · 03-23-2015, 03:19 AM

this is the code i am executing::

Code:

!/bin/sh

for (( i=1; i<=250; i++ ))
do
        for (( j=1; j<=250; j++ ))
        do
                ping -c 2 x.y.$i.$j; arp -n x.y.$i.$j; grep -v Address; grep -v incomplete >> ip-mac.txt
        done
done

the o/p I am looking for is like list of all the ip's & mac addresses in my n/w belonging to different subnets and vlans, and bind them as in the o/p of your commands so that if someone changes the ip or mac the internet access should get denied by the proxy. Your commands did the same thing but only for one subnet I want to do it for all.I thought the above script would work but apparently its not.

regards,

T3RM1NVT0R · 03-23-2015, 04:13 AM

Here is how it should be and it works, tested it on my system:

Code:

#!/bin/sh

for i in `seq 1 10`
do
{
        for j in `seq 1 10`
        do
        {
                ping -c 1 x.y.$i.$j; arp -n x.y.$i.$j | grep -v Address | grep -v incomplete >> ip-mac.txt
        }
        done
}
done

In your script you have put semicolon at the wrong place, I have marked them in bold and red below, have a look:

Quote:

!/bin/sh

for (( i=1; i<=250; i++ ))
do
for (( j=1; j<=250; j++ ))
do
ping -c 2 x.y.$i.$j; arp -n x.y.$i.$j;grep -v Address; grep -v incomplete >> ip-mac.txt
done
done

Basically you are interrupting grep, you are asking to grep but for what? That was the problem.

NM04 · 03-24-2015, 12:03 AM

ok I get it, thank you for what you have done for me. its working now.

regards,

T3RM1NVT0R · 03-24-2015, 12:09 AM

You're welcome. Good to hear that everything is in place!

Enjoy Linux!!!

NM04 · 05-08-2015, 05:59 AM

the last command in the series

cat squid-mac-filter.txt squid-ip-filter.txt http-access-squid.txt >> acl-final.txt