Disons que dans sa configuration par défaut, pppd re-tente de se connecter s'il est déconnecté, donc la "déco des 24 heures" ne dure pas plus de dix secondes :
Jan 19 08:25:12 kewlcat pppd[752]: LCP terminated by peer
Jan 19 08:25:15 kewlcat pppd[752]: Connection terminated.
Jan 19 08:25:15 kewlcat pppd[752]: Connect time 1440.0 minutes.
Jan 19 08:25:15 kewlcat pppd[752]: Sent 1804072 bytes, received 19993240 bytes.
Jan 19 08:25:15 kewlcat pppoe[753]: Sent PADT
Jan 19 08:25:15 kewlcat pppd[752]: Exit.
Jan 19 08:25:15 kewlcat adsl-connect: ADSL connection lost; attempting re-connection.
Jan 19 08:25:20 kewlcat pppd[854]: pppd 2.4.1 started by root, uid 0
Jan 19 08:25:20 kewlcat pppd[854]: Using interface ppp0
Jan 19 08:25:20 kewlcat pppd[854]: Connect: ppp0 <--> /dev/pts/0
Jan 19 08:25:20 kewlcat pppoe[855]: PPP session is 7221
Jan 19 08:25:22 kewlcat pppd[854]: Remote message: CHAP authentication success, unit 33
Jan 19 08:25:22 kewlcat pppd[854]: local IP address 81.50.209.xxx
Jan 19 08:25:22 kewlcat pppd[854]: remote IP address 81.50.209.1
Jan 19 08:25:22 kewlcat pppd[854]: primary DNS address 193.252.19.3
Jan 19 08:25:22 kewlcat pppd[854]: secondary DNS address 193.252.19.4