How to setup internet in raspberry pi?

Question

linux

Hello!
I have a Raspberry pi B, a router, a wifi adapter and a UTP cable
. Is it possible to make Raspberry pi receive the Internet via a WiFi adapter, transmit it via a UTP cable to a router, which in turn distributes this same WiFi?
Like a picture:
(Sorry for the quality)

Thank you!

Answer 1

This is BDSM.
Why such perversion?

Answer 2

Setting this up is not a problem:
- figure out what the routing table (route command) is in Linux (on the Rasberry Pi)
- and on the router I would use not the WAN port, but the LAN port (i.e. you and the router then, in essence, do not needed, a simple switch is enough).