проблема с pptpd

выдает следующий лог. На клиентской машине вылетает после сообщения "регистрация компьютера в сети"
May 29 12:22:31 [pptpd] CTRL: Client 10.250.16.12 control connection finished
May 29 12:22:33 [pptpd] MGR: Max connections reached, extra IP addresses ignored
May 29 12:22:33 [pptpd] MGR: Manager process started
May 29 12:22:33 [pptpd] MGR: Maximum of 100 connections available
May 29 12:22:48 [pptpd] CTRL: Client 192.168.0.3 control connection started
May 29 12:22:48 [pptpd] CTRL: Starting call (launching pppd, opening GRE)
May 29 12:22:48 [pppd] Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
May 29 12:22:48 [pppd] pppd 2.4.2 started by root, uid 0
May 29 12:22:48 [pppd] Using interface ppp0
May 29 12:22:48 [pppd] Connect: ppp0 <--> /dev/pts/0
May 29 12:22:48 [pptpd] GRE: Bad checksum from pppd.
May 29 12:22:51 [pptpd] CTRL: Ignored a SET LINK INFO packet with real ACCMs!
May 29 12:22:51 [pppd] found interface eth1 for proxy arp
May 29 12:22:51 [pppd] local IP address 192.168.0.1
May 29 12:22:51 [pppd] remote IP address 192.168.0.3
May 29 12:22:51 [pppd] IPCP terminated by peer (E`^EN^@<M-Mt^@^@^@4)
May 29 12:22:52 [pppd] LCP terminated by peer (E`^EN^@<M-Mt^@^@^@^@)
May 29 12:22:55 [pppd] Connection terminated.
May 29 12:22:55 [pppd] Connect time 0.1 minutes.
May 29 12:22:55 [pppd] Sent 223508 bytes, received 117 bytes.
May 29 12:22:55 [pppd] tcflush failed: Input/output error
May 29 12:22:55 [pppd] Connect time 0.1 minutes.
May 29 12:22:55 [pppd] Sent 223508 bytes, received 117 bytes.
May 29 12:22:55 [pppd] Exit.