config wifi-iface
        option network 'wwan'
        option ssid 'eduroam'
        option device 'radio0'
        option mode 'sta'
        option eap_type 'ttls'
        option anonymous_identity 'anonymous@unizar.es'
        option auth 'PAP'
        option encryption 'wpa2'
        option identity 'fiat'
        option password 'clave'