Using laptop for a desktop's internet connectivity
The laptop wirelessly connects to my router, while the desktop is connected to the laptop with an ethernet wire.

The desktop successfully can use the internet if I set the connection to be shared on the laptop.

The problem is, I need the desktop to be as if it's connected by wire right to the router, so that I can set a static IP for the desktop, etc...

The desktop needs its own IP relative to the router, so that I can access it from another computer as "192.168.1.8".
Using laptop for a desktop's internet connectivity
===

The laptop wirelessly connects to my router, while the desktop is connected to the laptop with an ethernet wire.

The desktop successfully can use the internet if I set the connection to be shared on the laptop.

The problem is, I need the desktop to be as if it's connected by wire right to the router, so that I can set a static IP for the desktop, etc...

The desktop needs its own IP relative to the router, so that I can access it from another computer as "192.168.1.8".