WiRouter KeyRec is a powerful and platform independent piece of software that recovers the default WPA passphrases of the supported router’s models (Telecom Italia Alice AGPF, Fastweb Pirelli, Fastweb Tesley).
You can download it from the following link: https://packetstormsecurity.com/files/download/97574/WiRouter_KeyRec_1.0.3.zip
Source: https://packetstormsecurity.com/files/97574/WiRouter-KeyRec-1.0.3.html