Доброго времени суток, сталкнулся с такой проблемой.
Если перед установлением ppp соединения не подгрузить модуль iptables, то соединение будет неудачным, до pptp сервера дозванивается, но адреса интерфейсу не присваиваются. ниже показано какие модули были подгружены до начала использования iptables и какие после. Сразу стоит отметить, что до флуша iptables (именно таблицы ната)б утилита iptables-save возвращала нулевой результат.lsmod |grep -i ip
ip_nat_pptp 5988 0
ip_conntrack_pptp 11504 1 ip_nat_pptp
ip_nat_ftp 3328 0
ip_nat 16876 2 ip_nat_pptp,ip_nat_ftp
ip_conntrack_ftp 7760 1 ip_nat_ftp
ip_conntrack 49088 5 ip_nat_pptp,ip_conntrack_pptp,ip_nat_ftp,ip_nat,ip_conntrack_ftp
nfnetlink 6680 2 ip_nat,ip_conntrack
ipv6 226016 14
router:~# iptables -t nat -F
router:~# lsmod |grep -i ip
iptable_nat 7044 0
ip_tables 13028 1 iptable_nat
x_tables 13316 2 iptable_nat,ip_tables
ip_nat_pptp 5988 0
ip_conntrack_pptp 11504 1 ip_nat_pptp
ip_nat_ftp 3328 0
ip_nat 16876 3 iptable_nat,ip_nat_pptp,ip_nat_ftp
ip_conntrack_ftp 7760 1 ip_nat_ftp
ip_conntrack 49088 6 iptable_nat,ip_nat_pptp,ip_conntrack_pptp,ip_nat_ftp,ip_nat,ip_conntrack_ftp
nfnetlink 6680 2 ip_nat,ip_conntrack
ipv6 226016 16
Jul 3 18:13:09 router pptp[9722]: anon log[ctrlp_disp:pptp_ctrl.c:772]: Client connection established.
Jul 3 18:13:10 router pptp[9722]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Jul 3 18:13:10 router pptp[9722]: anon log[ctrlp_disp:pptp_ctrl.c:857]: Received Outgoing Call Reply.
Jul 3 18:13:10 router pptp[9722]: anon log[ctrlp_disp:pptp_ctrl.c:896]: Outgoing call established (call ID 0, peer's call ID 1908).
Jul 3 18:13:32 router pptp[9722]: anon log[ctrlp_disp:pptp_ctrl.c:928]: Call disconnect notification received (call id 0)
Jul 3 18:13:32 router pptp[9722]: anon log[ctrlp_error:pptp_ctrl.c:199]: Result code is 1 'Lost Carrier'. Error code is 0, Cause code is 6
5535
Jul 3 18:13:32 router pptp[9722]: anon log[call_callback:pptp_callmgr.c:78]: Closing connection (call state)
Jul 3 18:13:32 router pptp[9722]: anon log[ctrlp_disp:pptp_ctrl.c:787]: Received Stop Control Connection Request.
Jul 3 18:13:32 router pptp[9722]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 4 'Stop-Control-Connection-Reply'
Jul 3 18:13:39 router pptp[9746]: anon log[main:pptp.c:267]: The synchronous pptp option is NOT activated
Jul 3 18:13:39 router pptp[9751]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Jul 3 18:13:39 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:738]: Received Start Control Connection Reply
Jul 3 18:13:39 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:772]: Client connection established.
Jul 3 18:13:40 router pptp[9751]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Jul 3 18:13:40 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:857]: Received Outgoing Call Reply.
Jul 3 18:13:40 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:896]: Outgoing call established (call ID 0, peer's call ID 55557).
Jul 3 18:14:02 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:928]: Call disconnect notification received (call id 0)
Jul 3 18:14:02 router pptp[9751]: anon log[ctrlp_error:pptp_ctrl.c:199]: Result code is 1 'Lost Carrier'. Error code is 0, Cause code is 6
5535
Jul 3 18:14:02 router pptp[9751]: anon log[call_callback:pptp_callmgr.c:78]: Closing connection (call state)
Jul 3 18:14:02 router pptp[9751]: anon log[ctrlp_disp:pptp_ctrl.c:787]: Received Stop Control Connection Request.
Jul 3 18:14:02 router pptp[9751]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 4 'Stop-Control-Connection-Reply'
Jul 3 18:14:09 router pptp[9775]: anon log[main:pptp.c:267]: The synchronous pptp option is NOT activated
Jul 3 18:14:09 router pptp[9780]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Jul 3 18:14:09 router pptp[9780]: anon log[ctrlp_disp:pptp_ctrl.c:738]: Received Start Control Connection Reply
Jul 3 18:14:09 router pptp[9780]: anon log[ctrlp_disp:pptp_ctrl.c:772]: Client connection established.
Как только akeie именно НАТовскую таблицу, pptp начинает корректно цепляться, но если НАТ не трогать а исполнить команду iptables -F, то pptp все так же будет отказываться подключаться :)
Есть у кого какие мысли на этот счет?
