[pptp-server] PPTPD & GRE problems?!

[Pete Starzewski]

Looks like something is blocking GRE packets.  Do you possibley have a 
firewall in the way?  I have even seen some posts in the archive where ISPs 
were blocking GRE.  You may also want to check your ipchains config on the 
poptop server.

Pete


At 12:21 AM 4/10/01 -0400, you wrote:
>I just can't seam to get this working.... can anyone out there help me out 
>with this please? Here is what I'm getting in my log file:
>
>pptpd[25025]: MGR: Launching /sbin/pptpctrl to handle client
>pptpd[2310]: MGR: Reaped child 25025
>modprobe: modprobe: Can't locate module tty-ldisc-3
>pptpd[25025]: CTRL: local address = 192.168.0.234
>pptpd[25025]: CTRL: remote address = 192.168.1.234
>pptpd[25025]: CTRL: Client 172.18.0.253 control connection started
>pptpd[25025]: CTRL: Received PPTP Control Message (type: 1)
>pptpd[25025]: CTRL: Made a START CTRL CONN RPLY packet
>pptpd[25025]: CTRL: I wrote 156 bytes to the client.
>pptpd[25025]: CTRL: Sent packet to client
>pptpd[25025]: CTRL: Received PPTP Control Message (type: 7)
>pptpd[25025]: CTRL: Set parameters to 0 maxbps, 16 window size
>pptpd[25025]: CTRL: Made a OUT CALL RPLY packet
>pptpd[25025]: CTRL: Starting call (launching pppd, opening GRE)
>pptpd[25025]: CTRL: pty_fd = 4
>pptpd[25025]: CTRL: tty_fd = 5
>pptpd[25026]: CTRL (PPPD Launcher): Connection speed = 115200
>pptpd[25026]: CTRL (PPPD Launcher): local address = 192.168.0.234
>pptpd[25026]: CTRL (PPPD Launcher): remote address = 192.168.1.234
>pptpd[25025]: CTRL: I wrote 32 bytes to the client.
>pptpd[25025]: CTRL: Sent packet to client
>pptpd[25025]: GRE: read(fd=4,buffer=809c180,len=8196) from PTY failed: 
>status = -1 error = Input/output error
>pptpd[25025]: CTRL: PTY read or GRE write failed (pty,gre)=(4,5)
>pptpd[25025]: CTRL: Client 172.18.0.253 control connection finished
>pptpd[25025]: CTRL: Exiting now
>
>_______________________________________________
>pptp-server maillist  -  pptp-server at lists.schulte.org
>http://lists.schulte.org/mailman/listinfo/pptp-server
>List services provided by www.schulteconsulting.com!