How to set up Alpine as a wireless router

From Alpine Linux

Pi Zero W Wireless Router

This is a page to describe building a Wireless Access Point with two wired ethernet ports for building a home router that connects to the internet with one wired port, and internal Lan with the second wired port and the on-board WiFi.

Overview

I generally run Debian and when forced by red hot irons, Red Hat. This is my first foray into Alpine. So far I am very impressed. I mirrored the 3.12 armhf repos so I had things local when I needed them. Word to the wise. That is 13G of apk files.
One *really* nice feature of Alpine is apk, the yum/apt replacement:
It is simple, short, and to the point.

Install

References

udhcpc
ez-ipupdate
Dynamic_DNS
Alpine Linux Bridge
Connect to wireless AP
dnsmasq listen restrictions
Disable IPV6
dnsmasq Docs
HostApd Docs
[rsync://rsync.alpinelinux.org/alpine Alpine Repos]

Pi Specific

Pi Wifi Repeater
WiFi Bridge
Alpine Install
PiZeroW Install
Classic Sys Install on Pi

Not Related, but Interesting

AP and Managed Mode
AP and MQTT