fedora : mon ppp0 ne se connecte pas au boot

Feb 8 11:57:15 localhost network: Configuration des paramètres réseau : succeeded
Feb 8 11:57:15 localhost ifup: Cannot get driver information: Operation not supported
Feb 8 11:57:16 localhost network: Activation de l'interface loopback : succeeded
Feb 8 11:57:19 localhost network: Activation de l'interface eth0 : succeeded
Feb 8 11:57:20 localhost network: Activation de l'interface ppp0 : failed