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Topic: WPA Enterprise with Arduino Yun? (Read 41482 times) previous topic - next topic

bitfrosting

Can the Arduino Yun connect to a network that is password protected using WPA2 Enterprise? If yes, will someone please explain how. Thanks!

federicofissore

If you search the forum, you find it's an open issue and we still haven't had time to set up a test environment.

bitfrosting

#2
Nov 07, 2013, 06:27 pm Last Edit: Nov 07, 2013, 09:25 pm by bitfrosting Reason: 1
Hello Federico,
I've searched around the open-wrt wiki and found that open-wrt does handle WPA enterprise even though these options aren't available from the Linino web interface (LuCI). I've attempted to configure WPA enterprise by editing the /etc/config/wireless file.

However, when I restart the wifi using these settings I lose my connection to the Yun. Unfortunately, I cannot access the Yun through the network that is using WPA Enterprise, and I cannot trouble shoot any further, because of my lost connection to the Yun. Do you know how I can connect to the Yun via USB, so that I can continue playing around with the /etc/config/wireless file until I have it configured properly?

noblepepper

Load the YunSerialTerminal sketch over USB, then you get a console in the SerialMonitor or any other terminal program like PuTTY or picocom attached to the USB port for the Yun.

bitfrosting

Hi Noblepepper,
Thanks for the suggestion. I have a noob follow up question: after I load the YunSerialTerminal sketch how would I use PuTTY to "access" the terminal?
Thanks!

noblepepper

I assume you are on windows if you want to use PuTTY, you download it from here: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html. Run it and select a Serial connection, point it to the COM your Yun (or any other arduino) is on and set the speed to whatever speed the Serial.begin(); set.

federicofissore

The other option is to plug in an Ethernet cable and access the yun through it. This way you'll never lose the connection as long as you'll play with wifi (because they are two separate network interfaces)

bitfrosting

#7
Nov 11, 2013, 07:50 am Last Edit: Nov 11, 2013, 07:57 am by bitfrosting Reason: 1
YES!!!
I've got the Yun to connect via WPA2 Enterprise and I'll include the steps I followed at the bottom of this post. Before getting to this, however, I think my setup is incomplete and could use some further guidance. Specifically, I do not know how to download a CA cert for the network I connect to. This doesn't seem to be necessary to make a connection, because I still connect, but these CA certs seem pretty standard, so I'm not sure what to do. Finally, I can only connect to my Yun by typing the numerical IP address, but not via http://arduino.local; this has been an on-going issue for me, because I do not understand it. How can I connect to my Yun using the the numerical IP address, but then fail to connect via http://arduino.local?

Also, are all opkg packages installed to the Yun memory? Can (and should) any packages be installed to the sd card?

A way to have the Yun connect to WPA Enterprise; I hope this helps as a starting point for just one other soul:
0. This setup was preformed with the help of  Windows box.
1. Connect the Yun to a computer via the micro USB. This is not only a good way to power the Yun, but also convenient to communicate with a virtual serial connection. Upload the sketch File>Examples>Bridge>YunSerialTerminal from the Arduino IDE.
2. Place the Yun within range of a wireless network (or connected via ethernet) that does not require WPA Enterprise. Connect the Yun to this network.
3. Open PuTTY, select the Serial from the radio buttons, and change the baud rate to 115200. The baud rate will be whatever was set in the YunSerialTerminal sketch in the line
Code: [Select]
Serial.begin(####). Click the Open button and a window will open. Press enter and the Linino spash screen should appear or at the very least a command line.
4. Install wpad with the opkg package manager, because wpad has the wpa-enterprise ability whereas wpad-mini, the default package in the Yun, does not. wpad-mini comes pre-installed and must be removed first.
Code: [Select]
opkg update
opkg remove wpad-mini
opkg install wpad

5. Confirm the installation with
Code: [Select]
opkg list-installed.
6. Edit the /etc/config/network file using the vi text editor. Add a new config section that looks like
Code: [Select]
config interface 'myNetwork'
     option proto 'dhcp'
.
To start editing the file, from the command line enter
Code: [Select]
vi /etc/config/network.

  • Press 'i' to start editing text

  • Press 'ESC' to stop editing text

  • Type ':x' save changes and exit

  • Type ':q' to exit

  • Type ':q!' to exit without saving changes


7. Now, edit the /etc/config/wireless file using vi again. I found my setup worked when I included only the following under the config wifi-iface section. Also, some of these settings are network specific, so please adjust accordingly:
Code: [Select]
option device 'radio0'
option network 'myNetwork'
option mode 'sta'
option encryption 'mixed-wpa+aes'
option eap_type 'peap'
option ssid 'mySSID'
option identity 'myUsername'
option password 'myPassword'

8. Move the Yun into the range of the WPA Enterprise protected network. Restart the wireless interface of the Yun by entering the following command from the command line:
Code: [Select]
wifi
9. The Yun will output some text with details about the connection being made. Finally, confirm and discover the IP address assigned to the Yun using the command
Code: [Select]
ifconfig. The output of this command will contain a section called wlan0; the IP address can be found next to the text inet.

Thanks for everyone's help!

federicofissore

You saved me hours of work! Thank you so much!

ProfePaco


Jesse12345

I don't think the network interface 'myNetwork' is initialized until you run the script /etc/init.d/network start

At which point, the wifi command works.

Thanks for the tutorial!

Ryan_Ferrin

Thanks for the Information!

For this info:

option device 'radio0'
option network 'myNetwork'
option mode 'sta'
option encryption 'mixed-wpa+aes'
option eap_type 'peap'

Can you tell me where I find the network specific content?

thank you,

Ryan

sonnyyu

http://wiki.openwrt.org/doc/uci/wireless

Check WPA Modes sections for Value.


http://www.itcom.itd.umich.edu/wireless/connect/xp.php

Use Windows machine login WPA2 Enterprise network, copy the value from windows machine.


Ryan_Ferrin


PineCone

I would like to do this also but I am running into some problems.  I am getting numerous error messages as the Yun tries but then says wlan0: deauthenticating from <address> by local choice (Reason: 3=DEAUTH_LEAVING).  This may be because something is overwriting the content I put into /etc/config/wireless.  In particular, these lines get modified.

option mode 'sta'
option encryption 'mixed-wpa+aes'
option ssid 'mySSID'


ssid gets reset to the original Yun SSID that it came with out of the box.  Encryption is reset to none and mode is switched to 'ap'.  I can confirm that the file has been saved when I make the changes using vi.  I can re-edit the file using vi and the changes are there.  However, running subsequent commands lead to these changes.

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