FW_Transparent_Bridge_Eth_to_Wifi

by 🗿Patrick McCanna🗿

Overview

This Recipe generates a wifi device that bridges an ethernet network and exposes it to a wifi network. You can use this to turn your spare pi into wifi access points that expose an existing ethernet network.

Prerequisites

• One Raspberry Pi 3 or greater
• One Class 10 SD card of 8gb or greater
• SDCard ripping software
  • https://www.raspberrypi.com/software/
• An sdcard writer (either integrated in laptop or availabile from Amazon)

Build Overview

login: pi pwd: ChangeDefaultPWD3331333

This build bridges your ethernet network and exposes it via wifi. This means a few things:

• Your existing dhcp solution can be extended to your wifi network.
• Your wifi network is not doing any bizarre double natting. You're using the same ip range of your lan.
• Log into the system and run the command arp -a | grep wlan0 to see the hostnames & Ip addresses of all devices attached to the wlan0 interface.

It uses eth for internet access and the wifi interface vends network to anything attached.

Major Software Components

Software	Description

| lighttpd | Webserver software (Not used in current build- but useful if you use web management software) | | avahi | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite) | | hostapd | a user space daemon for access point and authentication servers. It implements IEEE 802.11 access point management, IEEE 802.1X/WPA/WPA2/EAP Authenticators, RADIUS client, EAP server, and RADIUS authentication server) | | inkywhat | a 400x300 pixel electronic paper (ePaper / eInk / EPD) display for Raspberry Pi) | | bridge networking | The Raspberry Pi can be used as a bridged wireless access point within an existing Ethernet network. This will extend the network to wireless computers and devices.) |

Setup instructions

• Follow instructions for building an image using ansible containers.

1. Install Docker
2. Clone firmware development containers
3. Tune your docker-compose file (to build the containers for use on your system)
4. Build & Launch Containers
5. Connect to our container and validate connectivity.
6. Clone the Transparent_Bridge_Eth_to_Wifi project into your DockerVolume directory on your host system.
7. build a recipient device using raspberry pi imager with a known credential and set it's hostname to ansibledest.local
8. attach to your ansible container
9. use ssh-copy-id command to copy a key from your ansible container to the target device
10. cd into /home/pi/Playbooks/Transparent_Bridge_Eth_to_Wifi
11. run the command ansible-playbook run.yml

Acquire hardware

The FW_Transparent_Bridge_Wifi_To_Eth depends on the following list of hardware:

Quantity	Device
1	Raspberry Pi Mod 3 or Raspberry pi 4
1	8 GB (or greater) Class 10 Ultra Micro SD
1	AWUS036ACH
1	Power Supply for Pi 3