Доброго времени суток!
Неожиданно при настройке интренет шлюза с биллингом появилась непонятная проблема с PPTPD. Схема следующая LAN-eth4-PPTPD-марштрутизиция(без nat)-eth5-ADSL-nat-Internet
Проблема заключается в след. при подключении и отключении клиента по pptp пропадает напрочь связь через eth4 с локальной сетью (нет пингов и открытые соединения вылетаю по таймауту), причем при подключении клиента через eth5 такого с eth5 такого же не происходит. в логах pptp все спокойно, никаких ошибок.
Подскажите плиз в чем могут быть грабли.. или хотя бы в какую сторону копать.
вот конфиг pptpd
lock
auth require-mschap-v2
plugin radius.so plugin radattr.so
nobsdcomp nodeflate
require-mppe-128
mtu 1490 mru 1490
lcp-echo-failure 10 lcp-echo-interval 10
idle 0 deflate 0 proxyarp defaultroute nologfd
лог соединения...
Oct 1 19:54:24 server-sat pptpd[9699]: MGR: Launching /usr/sbin/pptpctrl to handle client Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: local address = 172.16.0.1 Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: remote address = 172.168.1.10 Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: pppd speed = 115200 Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: pppd options file = /etc/ppp/options.pptp Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Client 192.168.3.55 control connection started Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Received PPTP Control Message (type: 1) Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Made a START CTRL CONN RPLY packet Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: I wrote 156 bytes to the client. Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Sent packet to client Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Received PPTP Control Message (type: 7) Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Set parameters to 100000000 maxbps, 64 window size Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Made a OUT CALL RPLY packet Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Starting call (launching pppd, opening GRE) Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: pty_fd = 6 Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: tty_fd = 7 Oct 1 19:54:24 server-sat pptpd[9700]: CTRL (PPPD Launcher): program binary = /usr/sbin/pppd Oct 1 19:54:24 server-sat pptpd[9700]: CTRL (PPPD Launcher): local address = 172.16.0.1 Oct 1 19:54:24 server-sat pptpd[9700]: CTRL (PPPD Launcher): remote address = 172.168.1.10 Oct 1 19:54:24 server-sat pppd[9700]: Plugin radius.so loaded. Oct 1 19:54:24 server-sat pppd[9700]: RADIUS plugin initialized. Oct 1 19:54:24 server-sat pppd[9700]: Plugin radattr.so loaded. Oct 1 19:54:24 server-sat pppd[9700]: RADATTR plugin initialized. Oct 1 19:54:24 server-sat pppd[9700]: pppd 2.4.3 started by root, uid 0 Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: I wrote 32 bytes to the client. Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Sent packet to client Oct 1 19:54:24 server-sat pppd[9700]: Using interface ppp0 Oct 1 19:54:24 server-sat pppd[9700]: Connect: ppp0 <--> /dev/pts/4 Oct 1 19:54:24 server-sat pptpd[9699]: GRE: Bad checksum from pppd. Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Received PPTP Control Message (type: 15) Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Got a SET LINK INFO packet with standard ACCMs Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Received PPTP Control Message (type: 15) Oct 1 19:54:24 server-sat pptpd[9699]: CTRL: Ignored a SET LINK INFO packet with real ACCMs! Oct 1 19:54:24 server-sat pppd[9700]: MPPE 128-bit stateless compression enabled Oct 1 19:54:26 server-sat pppd[9700]: not replacing default route to eth5 [192.168.99.1] Oct 1 19:54:26 server-sat pppd[9700]: local IP address 172.16.0.1 Oct 1 19:54:26 server-sat pppd[9700]: remote IP address 172.16.3.111 Oct 1 19:54:26 server-sat pppd[9700]: Script /etc/ppp/ip-up finished (pid 9709), status = 0x0 Oct 1 19:54:28 server-sat ip-down: Usage: ./ip-down <INTERFACE> <DEVICE> <SPEED> <LOCALIP> <REMOTEIP> Oct 1 19:54:31 server-sat ntpdate[9737]: adjust time server 192.168.3.100 offset 0.000453 sec Oct 1 19:54:31 server-sat poll.tcpip: Try to get initial date and time via NTP from inttel..done