Matt Layher mdlayher

I'm writing this up as a gist, because I'm not sure I'll pursue any of it, but it seems worth writing down.

A basic problem with IPv6-only LANs at the moment is that you still need support for legacy protocol servers, which implies you doing some kind of DNS64 and NAT64 (IPv6-to-IPv4 stateful translation).

Currently, NAT64 only exists outside the kernel, as userspace software. This is not ideal because it limits available performance (since you have to keep bouncing between user space and kernel space),

The purpose of this document is to get you familiar with the concepts and command line tools involved with connecting to the internet using modern 4G LTE modems on both Debian/Ubuntu and OpenWRT.

This writeup is based on my experiences with the Sierra Wireless AirPrime MC7455 modem and a Calyx (Sprint) SIM card, but it should apply to most modern 4G LTE modems.

High level overview

These are the steps required:

Physically connect antennas

Setting up netboot.xyz with an EdgeRouter

This document covers how to setup netboot.xyz, a service that provides iPXE-based installation and live boot of a bunch of operating systems, on a Ubiquiti EdgeRouter.

Assumptions

I've made a few assumptions throughout this document that will probably be different for your setup:

	// simple example how to use azul3d.org/audio
	//
	// run it with SoX
	// go run main.go \| play -
	//
	// or save it to a file
	// go run main.go > test.wav
	//
	package main