Difference between revisions of "Using IGEP WLAN to communicate"

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If your IGEP Processor Board has '''wifi interface''' you can connect to it.
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== Overview  ==
  
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You can open a SSH session in your computer and interact with your Board from your console. Here is how to.
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If your IGEP Processor Board has '''WIFI interface''' you can connect to it without any cable. You can open a SSH session in your computer and interact with your Board from your console. Here is how to.  
  
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<br>
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== Requirements  ==
  
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== Update pre-installed software ==
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There are some requisites to follow this guide:
  
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<br>
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*IGEP Processor Board with WIFI
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*Host computer with WIFI
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*[http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html PuTTy program]
  
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{| width="100%" cellspacing="1" cellpadding="1" border="0" align="center"
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{{Message/Information Message|title=|message= In this guide is used [[ IGEP firmware Yocto ]]}}  
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|-
 
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! scope="row" | [[Image:Information.jpg|60x60px]]
 
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| If this is your first time accessing your IGEP Processor Board, it is highly recommended that you [[Update the PRE-INSTALLED software image to a current release|update your pre-installed software image to a recent release]] to ensure you have the latest features and bug fixes.
 
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|}
 
  
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<br>
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== Connect to IGEP network  ==
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..or you can directly:
 
  
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=== Download Boot and Rootfs  ===
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Follow these steps to connect to your IGEP device:
  
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You can download the boot partition and the rootfs partition packages from here:
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*Click on the Network Manager Tray icon.
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*Select IGEP_&lt;xx&gt; network, where &lt;xx&gt; is different for every IGEP device, to connect.
  
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{| cellspacing="1" cellpadding="1" border="1" width="200"
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|-
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| [[Image:Igep wificon1.png|331px]]
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| [[Image:Igep wificon2.png|331px]]
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|}
  
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{{Message/Broken Links}}
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'''<sup>Click to enlarge image</sup>'''
  
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== Connect to IGEP  ==
  
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*[http://downloads.igep.es/files/IGEP_Mod_linaro/boot-linaro_minimal.10.10.tar.bz2 Boot Partition]
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Follow these steps to get a remote shell prompt:  
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*[http://downloads.igep.es/files/IGEP_Mod_linaro/rootfs-linaro_minimal.10.10.tar.bz2 Root File System]<br>
 
  
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<br>
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*Open PuTTy program
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*Host Name:192.168.6.1
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*Port: 22
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*Connection type: SSH
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*Click Open, accept Security Alert and login as root user
  
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=== Create a Boot MicroSD Card<br>  ===
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{| cellspacing="1" cellpadding="1" border="1" width="200"
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|-
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Now create a Boot MicroSD Card using the two packages above. Follow this HowTo from the IGEP Wiki:
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| [[Image:Igep wifiputty1.png|331px]]
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| [[Image:Igep wifiputty2.png|331px]]
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*[[How to boot from MicroSD Card|How to boot from MicroSD Card]]. '''Note''': Just follow the 2nd point “Preparing the MicroSD Card” to create the two partitions needed.
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|-
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| [[Image:Igep wifiputty3.png|331px]]
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<br>
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| [[Image:Igep wifiputty4.png|331px]]
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|}
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Uncompress and untar the file ''boot-linaro_minimal.10.10.tar.bz2'' in the '''boot partition''' and the file ''rootfs-linaro_minimal.10.10.tar.bz2'' in the '''rootfs partition''' of your MicroSD Card.<br>
 
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== Configure the network<br>  ==
 
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To configure the wireless network in your IGEP Processor Board, you need to edit the ''/etc/network/interfaces'' file '''in your IGEP Processor Board''' (not your computer).
 
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To edit this file, remove the MicroSD from your IGEP device and insert it to your host PC.
 
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The MicroSD has two partitions: boot and rootfs. They are mounted in your '/media/' directory when you insert your MicroSD card to the host PC.
 
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So, the path to the ''interfaces'' file will be like: ''/media/rootfs/etc/network/interfaces''
 
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Append this text file with the following commands:
 
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<pre>  # interfaces(5) file used by ifup(8) and ifdown(8)
 
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  auto lo wlan0
 
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  iface lo inet loopback
 
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  iface wlan0 inet dhcp
 
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  wpa-driver wext
 
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  wpa-ssid '''&lt;put here your Access Point SSID&gt;'''
 
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  wpa-ap-scan 2
 
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  wpa-proto RSN
 
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  wpa-pairwise CCMP
 
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  wpa-group CCMP
 
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  wpa-key-mgmt WPA-PSK
 
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  wpa-psk '''&lt;put here your AP key*&gt;'''
 
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</pre>
 
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<br>
 
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Complete the gaps with the missing information from your network configuration.<br>
 
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To set the same wpa-psk from your access point, execute this command in your PC (with wifi):<br>
 
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<pre>wpa_passphrase "Access Point Name" "WPA2 Pass Phrase"
 
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</pre>
 
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This command gives you the '''wpa-psk key''' and you can replace it at the space from the file mentioned above: ''wpa-psk &lt;put here your AP key*&gt; ''<br>
 
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<br>
 
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This configuration enables the wifi and automatically '''gets the IP from DHCP by default'''.<br>
 
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Therefore, when you boot the IGEP board you might have to get its IP from your Access Point, maybe in its management console or page if provided.
 
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=== Using static IP<br>  ===
 
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If you wish to use a static IP then you should change at the same interfaces file:
 
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<pre># interfaces(5) file used by ifup(8) and ifdown(8)
 
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auto lo wlan0
 
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iface lo inet loopback
 
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iface wlan0 inet static
 
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    wpa-driver wext
 
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    wpa-ssid &lt;put here your AP SSID&gt;
 
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    wpa-ap-scan 2
 
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    wpa-proto RSN
 
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    wpa-pairwise CCMP
 
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    wpa-group CCMP
 
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    wpa-key-mgmt WPA-PSK
 
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    wpa-psk &lt;put here your AP key&gt;
 
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address 192.168.1.44
 
  
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netmask 255.255.255.0
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'''<sup>Click to enlarge image</sup>'''
  
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gateway 192.168.1.1
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Note that a DHCP IP address in range 192.168.6.10-192.168.6.254 should be given to your host PC. The IGEP device should have IP address 192.168.6.1.  
  
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</pre>
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== Troubleshooting  ==
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You are now ready to [[Using SSH to communicate|connect to your board via SSH]], for example.
 
  
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<br>
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=== NFS in root filesystem  ===
  
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Remember that the SSH connection details for this package are:<br>
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Don't use NFS in root filesystem combined with WIFI
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<pre>Username: root
 
  
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Password: letmein</pre>
 
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<br>
 
  
 
== See also  ==
 
== See also  ==

Revision as of 15:55, 27 August 2012

Overview

If your IGEP Processor Board has WIFI interface you can connect to it without any cable. You can open a SSH session in your computer and interact with your Board from your console. Here is how to.

Requirements

There are some requisites to follow this guide:

  • IGEP Processor Board with WIFI
  • Host computer with WIFI
  • PuTTy program
Information.jpg In this guide is used IGEP firmware Yocto

Connect to IGEP network

Follow these steps to connect to your IGEP device:

  • Click on the Network Manager Tray icon.
  • Select IGEP_<xx> network, where <xx> is different for every IGEP device, to connect.
Igep wificon1.png Igep wificon2.png

Click to enlarge image

Connect to IGEP

Follow these steps to get a remote shell prompt:

  • Open PuTTy program
  • Host Name:192.168.6.1
  • Port: 22
  • Connection type: SSH
  • Click Open, accept Security Alert and login as root user
Igep wifiputty1.png Igep wifiputty2.png
Igep wifiputty3.png Igep wifiputty4.png

Click to enlarge image

Note that a DHCP IP address in range 192.168.6.10-192.168.6.254 should be given to your host PC. The IGEP device should have IP address 192.168.6.1.

Troubleshooting

NFS in root filesystem

Don't use NFS in root filesystem combined with WIFI


See also

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