![]() ![]() The command above simply means that if there is a packet from IP address A.B.C.D with the MAC address is not 1A:2B:3C:4D:5E:6F, then drop / block the connection packet. Using your favorite shell, type the command below in the command line: iptables -A INPUT -s A.B.C.D -i eth0 -m mac ! -mac-source 1A:2B:3C:4D:5E:6F -j DROP In Linux we can easily do this by using ‘iptables’ tool. That means you can block any IP address coming from different source of MAC address in Linux OS. In case you use Linux operating system as the router in your office, instead of using Mikrotik, you can do the same with Mikrotik. The goal of this task is to prevent users from changing their workstation’s IP address to break policy rules. This system and many modern Linux distributions use Network Manager.In a previous post, we have shown you how to lock MAC address and IP in Mikrotik. The hardware address is the same as the MAC address. ![]() The IP address and other related information are located in this section. Click on the network icon and then select Connection Information. This information is easily accessible in the Status or notification sections in new Linux operating systems. You can also refer to the article “Tutorial on Changing MAC Address in Ubuntu” to find out how to change the MAC address. While the definition of IP in a router, in general, and on the internet page, is different and you have to use a different method to obtain it, which is not included in this tutorial. This tutorial will only focus on a device’s unique IP address. Below, we will explain how to find information related to IP and MAC addresses in the GNU/Linux Ubuntu operating system. You will most likely need this information. Method 3: for displaying the MAC address in Ubuntu.Best Parental Control Apps Android and iPhone.Best Free Apps to Spy on Cheating Spouses.Best Browsing Internet History Trackers. ![]()
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