Re: problem with wireless encryption

On Wed, 30 Jan 2008 14:48:37 -0200
Marcelo Chiapparini <chiappa@oi.com.br> wrote:

> My problem is with encryption (WPA).

This is what I have:

/etc/network/interfaces (relevant lines to wireless link only):

#DHCP doesn't work very well with wpa here, so I use static
#addresses. Also, it's a way of taking out the equation some
#variables.

address 192.168.11.3 #my address
netmask 255.255.255.0
gateway 192.168.11.1 #my router's address

wireless-essid "my ssid"
up wpa_supplicant -ieth2 -c/etc/wpa_supplicant.conf -Bw -Dwext down killall wpa_supplicant
allow-hotplug eth2

My wpa_supplicant.conf is just the output of wpa_passphrase (man wpa_passphrase). Run it with your ssid and passphrase and copy the output to wpa_supplicant.conf, so it looks like this:

/etc/wpa_supplicant.conf:

network={

        ssid="my ssid"
        #psk="whatevercrossesyourmindthebiggerthebetter"
        psk=bigstringoflettersandnumbersgeneratedbasedonyourpassphraseandssid

Do you need help?

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Put the psk (the second and real one) in your router's settings. That should be it. Check that you can get authentification from the router by running wpa_supplicant like this:

wpa_supplicant -ieth2 -c/etc/wpa_supplicant.conf -Dwext -d

Once you convince yourself that it can connect to the router kill it and bring your interface up the usual way.

I hope it works for you.

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