INSTRUCTIONS FOR CONNECTION TO WIRELESS NETWORK (WINDOWS XP)

* Check that your notebook has a wireless adaptor and is activated.

* Upon turning on your PC with Windows XP, the wireless network will
  be automatically detected and will open a message balloon in the
  lower left corner.

* Click on this message and a window will open showing the wireless
  networks.  (If more than one wireless network appears in the window,
  select UdeC_Wi-Fi).

* In the lower left corner of this window, click on the "Connect" button.
  The software will automatically configure the connection parameters
  and obtain the IP address, meanwhile please wait.

* Once this configuration is finalized, the assistent will ask you to
  enter the password to access this service (you should confirm the
  password in the same window).  
  PASSWORD: wi-fi

* After confirming the password click "Connect".
  
* Eventually the dialog box should show that you are connected.
  NOTE: If the software gives the error "Windows cannot connect
  to the selected network", click to accept, then click to
  update the list of networks and return to step number 3.
  
  - The connection speed to the network will depend on the distance
  between the user and the access point.
  - The Internet bandwidth is shared between the users of the UdeC Wi-Fi.

--------------------------------------------------------------------------

CONFIGURATION OF WIFI TO BE USED IN THE UDEC NETWORK
(INSTRUCTIONS FOR UBUNTU-LINUX, OTHER LINUX VARIETIES MAY BE SIMILAR)

PREREQUISITES:
 * Have the wireless card detected by Linux.
 * Be in a location with wireless coverage.

STEPS:

First:  Go to System -> Administration -> Network, where you will
be asked to input a password corresponding to your Linux session 
initialization password.

Second: From the detected cards, select the one corresponding
to your wireless connection, and go to Properties.

Third: Fill in the necessary data such as ESSID (udec_fi-fi),
the WEP password (wi-fi), 'DHCP' configuration.

Fourth: Now the configuration is ready to navigate the WIFI network
of the University.


ALTERNATIVE VIA COMMAND LINE:

Check which is your wireless interface with "sudo iwconfig"

Then:  "vi /etc/network/interfaces"
Password: YOUR USER PASSWORD

and have as a MINIMUM the following:

------------------------------------

auto lo
iface lo inet loopback

mapping hotplug
        script grep
        map eth1

iface eth1 inet dhcp
        # wireless-* options are implemented by the wireless-tools package
        wireless-mode managed
        wireless-essid udec_wi-fi
        wireless-key1 s:wi-fi
        wireless-defaultkey 1
        wireless-keymode open

------------------------------------

Reinitialize the interface with
"sudo ifdown eth1 # lower interface"
"sudo ifup eth1 # raise interface"

ANOTHER ALTERNATIVE:

Execute as root:
"iwconfig eth1 essid udec_wi-fi"
"iwconfig eth1 key s:wi-fi"
"pump -i eth1" or "dhcpcd eth1"

Related commands: iwlist (especially "iwlist eth1 scan")