[pptp-server] RedHat5.9 + pptpd + pppd (with mschap patches)

[Kurakin Roman]

Hi,

I have RH 5.9 with kernel 2.2.16, pppd 2.3.11 with mschap patches,
pptpd (1.1.1 or 1.0.0)
This is all information about system that I can give at this moment.
If it is not enough I will send addition information.

First problem was with pppd. It tried to get pty name and then stat it,
but failed because system return wrong name (/dev/pts/0rc insted of
/dev/pts/0). This was solved by changing stat to fstat.

Second problem:
pptpd[499]: MGR: Launching /usr/local/sbin/pptpctrl to handle
client                                                                  
pptpd[499]: CTRL: local address = 172.16.0.1          
pptpd[499]: CTRL: remote address = 172.16.0.2         
pptpd[499]: CTRL: pppd speed = 115200                 
pptpd[499]: CTRL: Client 192.168.0.1 control connection
started                                                                       
pptpd[499]: CTRL: Received PPTP Control Message (type:
1)                                                                             
pptpd[499]: CTRL: Made a START CTRL CONN RPLY packet  
pptpd[499]: CTRL: I wrote 156 bytes to the client.    
pptpd[499]: CTRL: Sent packet to client               
pptpd[499]: CTRL: Received PPTP Control Message (type:
7)                                                                             
pptpd[499]: CTRL: 0 min_bps, 0 max_bps, 32 window size
pptpd[499]: CTRL: Made a OUT CALL RPLY packet         
pptpd[499]: CTRL: Starting call (launching pppd, opening
GRE)                                                                         
pptpd[499]: CTRL: pty_fd = 4                          
pptpd[499]: CTRL: tty_fd = 5                          
pptpd[500]: CTRL (PPPD Launcher): Connection speed =
115200                                                                           
pptpd[500]: CTRL (PPPD Launcher): local address =
172.16.0.1                                                                          
pptpd[500]: CTRL (PPPD Launcher): remote address =
172.16.0.2                                                                         
pptpd[499]: CTRL: I wrote 32 bytes to the client.     
pptpd[499]: CTRL: Sent packet to client               
kernel: CSLIP: code copyright 1989 Regents of the University of
California                                                            
kernel: PPP: version 2.3.11 (demand dialling)         
kernel: PPP line discipline registered.               
kernel: registered device ppp0                        
pptpd[390]: MGR: Reaped child 499                     
pptpd[499]: Error reading from pppd: Input/output
error                                                                               
pptpd[499]: CTRL: GRE read or PTY write failed
(gre,pty)=(5,4)                                                                        
pptpd[499]: CTRL: Client 192.168.0.1 control connection
finished                                                                      
pptpd[499]: CTRL: Exiting now                         

I have some ideas about it, but I dont have time for investigation
all of them. 

Thanks for any help in advance.

Kurakin Roman