Mathematical Institute of the University of Bonn

Access to the Institute for Mathematic's wireless network (WLAN) with wpa_supplicant (e.g. with Debian and its derivatives)

Enter the following into the /etc/wpa_supplicant/wpa_supplicant.conf file:

ctrl_interface=/var/run/wpa_supplicant
eapol_version=1
ap_scan=1
network={
        ssid="MI"
        scan_ssid=1
        key_mgmt=WPA-EAP
        pairwise=CCMP
        group=TKIP CCMP
        eap=TLS
        identity="IDENTITY"
        ca_cert="/path/to/AAA_Certificate_Services.der"
        private_key="/path/to/cert.p12"
        private_key_passwd="WLAN"
}

Of course the values for identity, ca_cert and private_keys need to be adjusted.
Many operating systems preinstall the root certificate. In this case you can replace the line starting with ca_cert= with ca_path=/etc/ssl/certs.
Launch wpa_supplicant with:

wpa_supplicant -i wlan0 -Dwext -c /etc/wpa_supplicant/wpa_supplicant.conf -B && dhclient wlan0

If necessary, you may need to replace wlan0 and wext.