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A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

Open the “ssb-interop.js” file
Mac: Applications/Slack.app/Contents/Resources/app.asar.unpacked/src/static/ssb-interop.js
Windows: C:\Users\<USERNAME>\AppData\Local\slack\app-<VERSION>\resources\app.asar.unpacked\src\static\ssb-interop.js
Add this snippet of code at the bottom:

document.addEventListener('DOMContentLoaded', function() {
    $.ajax({
 url: 'https://gist.githubusercontent.com/ccarnley7/f245c47c6f265d8cfb7a3247f3429ac6/raw/e092fde4da3a93175a39ce1e4dafb547720af730/slackDarkTheme.css',

	#!/usr/bin/env bash

	#1. if you have only network prefix available (no netmask)

	IP=10.20.30.240
	PREFIX=26
	IFS=. read -r i1 i2 i3 i4 <<< $IP
	IFS=. read -r xx m1 m2 m3 m4 <<< $(for a in $(seq 1 32); do if [ $(((a - 1) % 8)) -eq 0 ]; then echo -n .; fi; if [ $a -le $PREFIX ]; then echo -n 1; else echo -n 0; fi; done)
	printf "%d.%d.%d.%d\n" "$((i1 & (2#$m1)))" "$((i2 & (2#$m2)))" "$((i3 & (2#$m3)))" "$((i4 & (2#$m4)))"