Кто юзает diald, поскажите пожалуйса:

Звонит провайдеру, держит связь несколько
минут и отваливаеться.
Вот log:

ю╧╤ 22 11:24:29 sto connect: Dialing 142601
ю╧╤ 22 11:24:49 sto connect: chat:  Nov 22 11:24:49 CONNECT 33600
ю╧╤ 22 11:24:49 sto connect: Loggin in
ю╧╤ 22 11:24:54 sto connect: Protocol started
Nov 22 11:24:54 sto pppd[3612]: pppd 2.4.0 started by root, uid 0
Nov 22 11:24:54 sto pppd[3612]: Using interface ppp0
Nov 22 11:24:54 sto pppd[3612]: Connect: ppp0 <--> /dev/ttyS0
Nov 22 11:24:54 sto diald[628]: Running pppd (pid = 3612).
Nov 22 11:24:57 sto pppd[3612]: local  IP address 192.168.21.78
Nov 22 11:24:57 sto pppd[3612]: remote IP address 192.168.3.21
Nov 22 11:24:57 sto pppd[3612]: Received bad configure-ack:
Nov 22 11:25:00 sto pppd[3612]: Received bad configure-ack:
Nov 22 11:25:03 sto diald[628]: New addresses: local 192.168.21.78, remote 192.168.3.21.
Nov 22 11:25:04 sto pppd[3612]: Received bad configure-ack:
Nov 22 11:25:25 sto last message repeated 7 times
Nov 22 11:25:27 sto pppd[3612]: CCP: timeout sending Config-Requests
Nov 22 11:27:29 sto pppd[3612]: Hangup (SIGHUP)
Nov 22 11:27:29 sto pppd[3612]: Modem hangup
Nov 22 11:27:29 sto pppd[3612]: Connection terminated.
Nov 22 11:27:29 sto pppd[3612]: Connect time 2.6 minutes.
Nov 22 11:27:29 sto pppd[3612]: Sent 4967 bytes, received 2160 bytes.
Nov 22 11:27:29 sto pppd[3612]: Exit.

Особенно мне интересно что значат строки

Received bad configure-ack:
Nov 22 11:25:25 sto last message repeated 7 times
Nov 22 11:25:27 sto pppd[3612]: CCP: timeout sending Config-Requests

Что такое bad configure-ack, после которого
переназначеться ip адресс?