Internet Sharing For Mac

On your Mac, choose Apple menu System Preferences, then click Sharing. How to Share Internet Over Ethernet Cable: Internet is a universal phenomena. Supposedly Internet is a medium via which the whole world is connected. Go check out Project Loon from google and you will realise 1 out of 3 people in the world do not have an internet. Set up Internet Sharing on Mac OSX using Command Line Tools July 3rd, 2017. Even if Mac-OSX has a Unix core, Apple put some layers on top of it, which makes it rather hard to freely hack around. That's why I wrote an own small DHCP server recently. Configuring a Mac (Macbook Pro in my case) to act as a NAT router is hairy as well.

During one of our Support Essentials Courses a delegate asked me if it was possible to change the subnet supplied by Mac OS X default internet sharing service.

After some searching on both the system files and Google, I found that that the configuration file is located in /Library/Preferences/SystemConfiguration/com.apple.nat.plist.

This file only gets created after you have switched internet sharing on. I’ve written this blog to show you how to change the internet sharing subnet on mac OS X. Originally the system gives out 192.168.2.* addresses and I’m now going to show you how to change it to 10.0.111.*

Original Settings

Now we are going to modify the file to suit our needs:

Step 1

If internet sharing is on, switch it off

Laptop To Mobile Internet Sharing

Step 2

Create a backup of the config file just in case something goes wrong: open the terminal app and copy file to desktop:
sudo cp /Library/Preferences/SystemConfiguration/com.apple.nat.plist ~/Desktop.

Step 3

Now let’s make the changes: to make it easier, continue using Terminal but this time, use defaults command. We need to add 3 lines:
sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.nat NAT -dict-add SharingNetworkNumberStart 10.0.111.1
sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.nat NAT -dict-add SharingNetworkNumberEnd 10.0.111.20
sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.nat NAT -dict-add SharingNetworkMask 255.255.255.0

Step 4

Turn internet sharing ON and test. You should get something that looks like this:

Wifi

If you want to enjoy one internet connection on several computers then Internet connection sharing is the best option for you. By sharing your Internet connection with other computers on your local network, you can save your lots of money and take benefits of cheap internet service (low-cost internet access).

These days, almost all people are enjoying Internet connection sharing on their devices. Because, enabling or disabling internet sharing is a quite simple process. Specially on Mac computers, the internet sharing setup is super easy.

In case, you have already enabled and enjoying Internet sharing on your Mac system from a long time. But by any specific reason, if you want to disable internet connection sharing on your Mac then this guide will help you a lot.

Previously, we have already explained in detailed about how to disable internet connection sharing on Windows computers. And in today’s Mac guide, we are going to show you – how to turn off internet connection sharing on Mac OS X. Let’s check the step by step guide:

Internet Sharing For MacMac

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You will have not to perform any complex settings in order to disable Mac Internet Sharing. Only, you have to make few simple changes and you are done. Here’s how:

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Step (1): First of all, click on Apple menu and select System Preferences from the options.

Step (2): From the System Preferences, click on Sharing option which is located under the Internet & Wireless section.

Step (3): On Sharing window, you will be able to view a list of service. Find the checked “Internet Sharing” option and uncheck it.

Step (4): After unchecking Internet Sharing, close the System Preferences. You are done.

Once you unchecked the Internet Sharing option, the Internet connection sharing will be disabled on your Mac computer. That’s it!

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Thus, you can see how simple is to disable internet sharing in Mac. Try it out and feel free to ask via comments if you face any difficulties in order to disable Internet connection sharing on Mac OS X.

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