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