1 08-Wireless

1.1 Audio-recording

Password for the Vimeo videos is in Zulip chat.
- Part 1: 2022-05-02
  - https://vimeo.com/708014806
Tip: If anyone want to speed up the lecture videos a little, inspect the page, go to the browser console, and paste this in: document.querySelector('video').playbackRate = 1.2

1.2 Tasks

Include 802.11 wireshark lab demo on this page somewhere.
convert/import old slides

08-Wireless/nachos.png
https://xkcd.com/654/

Demo in class: wireless capture using usb-nic to be viewed in wireshark
https://wiki.wireshark.org/CaptureSetup/WLAN

#!/bin/bash

# Note: ifconfig is deprecated; use ip
# Note: iwconfig is deprecated; use iw

# see devices
iw dev

# put in monitor mode
sudo ip link set wlan0 down
sudo iw dev wlan0 set type monitor
sudo ip link set wlan0 up

# back to managed
sudo ip link set wlan0 down
sudo iw dev wlan0 set type managed
sudo ip link set wlan0 up

# Then observe promiscuously...
sudo wireshark

# Alternatively: airmon (more next time)
sudo airmon-ng start wlan0

http://etutorials.org/Networking/802.11+security.+wi-fi+protected+access+and+802.11i/ (book on WiFi)
https://www.homenethowto.com/wireless/ (and follow-up sections)
- https://www.homenethowto.com/advanced-topics/radio-communication-basics/ (extra)
https://intronetworks.cs.luc.edu/current2/uhtml/wireless.html
https://www.computer-networking.info/2nd/html/protocols/lan.html#wireless-networks
https://www.computer-networking.info/1st/html/lan/lan.html#wireless-networks (old version)
https://media.pearsoncmg.com/aw/ecs_kurose_compnetwork_7/cw/content/interactiveanimations/csma-ca-without-hidden/index.html
https://media.pearsoncmg.com/aw/ecs_kurose_compnetwork_7/cw/content/interactiveanimations/csma-ca-with-hidden/index.html
http://www.sss-mag.com/pdf/802_11tut.pdf
- 08-Wireless/802_11tut.pdf
https://en.wikipedia.org/wiki/IEEE_802.11#Protocol
https://en.wikipedia.org/wiki/IEEE_802.11#Layer_2_–_Datagrams
https://en.wikipedia.org/wiki/Wireless_community_network
https://en.wikipedia.org/wiki/Wireless_mesh_network
https://www.youtube.com/watch?v=QHo2hCzxMr0&list=PL6F4DF36B45CCBFCB (via security-tube megaprimer on Wireless security)