Updating wifi information for a robot (OUT OF DATE)

Do not use this method, it is out of date.

Resetting the wireless password

Current Method

utexas-iot

With utexas-iot, we can use the WPA2 security without dealing with he complexity of WPA2-Enterprise. You will first need to go to https://network.utexas.edu/, click 'add wifi device' and fill in the information.

You can get the MAC address of the NIC of the robot by running

$ ip addr show

in a terminal on the robot, and locating the appropriate address corresponding to the wireless interface. For description, find the hostname of the robot and use: bwi-HOSTNAME-wifi After this information is entered, you will be presented with a password.

In a terminal on the robot, run:

$ wpa_passphrase "utexas-iot" "PASSWORD-FROM-NETWORK.UTEXAS" | sudo tee /etc/wpa_supplicant.conf

This updates the wpa_supplicant.conf file to use the new credentials for the utexas-iot network. If you're configuring a new robot to connect to the internet, you'll also need to fill in the /etc/network/interfaces file:

$ sudo vim /etc/network/interfaces

and replace the contents with the following

auto wlo1
iface wlo1 inet dhcp
pre-up ip link set dev wlo1 up
pre-up wpa_supplicant -iwlo1 -Dnl80211 -c/etc/wpa_supplicant.conf -B
post-down killall wpa_supplicant
post-down ip link set dev wlo1 down

be sure to update the instances of wlo1 if your wireless interface is named something else, i.e. wlan3, wlan0r1 etc.