From the list on the left, click on Internet Sharing, and you will see Internet Sharing options. Select to share your connection from Ethernet to Wi-Fi. Click on Wi-Fi Options button to configure the name and password of your wireless network. The name is up to you, keep the channel as it is. Look for Sharing menu which is under Internet & Wireless by going into the mac’s System Preferences. Tap on Internet Sharing from the list on the left, and you can find Internet Sharing options. From Ethernet to Wi-Fi, select to share your connection. Tap on Wi-Fi Options button for configuring the name and password of your wireless network. On your Mac, choose Apple menu System Preferences, then click Sharing. If you have successfully downloaded videos on your Mac Catalina, the process of sharing the videos has changed a bit. To set-up Songs, Videos, and other media content from the Mac to your Apple TV, here’s how to do that. Step 1: Choose Apple menu Step 2: Next select System Preferences Step 3: Click Sharing Step 4: Now toggle Media Sharing on.
Yes. It's relatively straight-forward to Internet sharing... However, you don't want to turn on Internet Connection Sharing on the Mac since it's the Windows PC's Internet (EV-DO) you want to share.
You want to follow these instructions on enabling Internet Connection Sharing under Windows 7: http://windows.microsoft.com/en-US/windows-vista/Using-ICS-Internet-Connection-S haring#section_2
On the Mac side, once this is setup on the Windows PC, you want to go to network preferences, select your LAN connection and set it up. Make sure that 'Configure IPv4' is set to 'Using DHCP', and if it hasn't already got its configuration from the Windows system, clikc on the 'Advanced' tab, select the 'TCP/IP' tab, and click the button 'Renew DHCP Lease'.
That's it.
THe only thing that seems peculiar is that your PPP connection doesn't list a default route. Also, you'll want to check the DHCP config you receive includes the DNS servers -- otherwise you will need to specify those manually.
Aug 4, 2011 5:49 AM
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. Sure, there are the sharing options, but they're quite limited and bring their own DHCP server, with no control over it anymore.
Setting up NAT by appealing to the core of OSX is not that hard. I assume your Mac (=router) has a Wifi connection to the internet (en0, configured with upstream DHCP). A network interface (en4), connected to the network which needs to be connected to the internet has a static IP address 192.168.3.1. You can set this static IP address either via the network settings or via the Terminal:
Note: ifconfig would work as well, but can be overwritten by the network settings. So using networksetup is the better option.
Enable IP forwarding on OSX
Now we need to enable packet forwarding. This can be accomplished with the following command:
Mac Wifi Sharing
Now the interesting part. Apple changed the way NAT works quite often over the last versions of OSX. The most recent way is to use pfctl. To do this, add the following line to /etc/pf.conf:
Remember: en0 is the Wifi network with internet connection, en4 is the local network connection. To activate the change run the following commands:
Configure the clients
Either you use an own DHCP server or configure the other devices statically. In my case, it's just a Raspberry PI, which needs to be connected to the internet, so setting it statically can be done with:
What Channel For Internet Sharing Machines
To make this change permanent, edit /etc/network/interfaces and set the following attributes:
To make the change work, run
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