What is a Wifi Router

• A wifi router combines
  an access point and wired router.
• The access point manages a subnet.
• The router can connect to upstream internet.
• Private vpn or other services can be added.

Raspberry Pi Wifi Router

• The Pi 3 needs no addtional hardware.
• The Pi 2 needs a USB wifi dongle.
• The Pi 0 W needs a USB-OTG bus and ethernet dongle.
• The Pi 0 needs 2way USB bus, wifi dongle, ethernet dongle.