[pptp-server] Having trouble getting encryption working.

Robert Green robert at dvns.com
Thu Jun 6 10:07:59 CDT 2002


I went ahead and tried the pptpd-1.1.2 and that didn't help.  I am posting
the log.

Jun  5 10:07:57 flame pptpd[3271]: MGR: Launching /usr/local/sbin/pptpctrl
to handle client
Jun  5 10:07:57 flame pptpd[3271]: CTRL: local address = 192.168.0.2
Jun  5 10:07:57 flame pptpd[3271]: CTRL: remote address = 192.168.1.2
Jun  5 10:07:57 flame pptpd[3271]: CTRL: pppd speed = 115200
Jun  5 10:07:57 flame pptpd[3271]: CTRL: pppd options file =
/etc/ppp/options.pptp
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Client 192.168.101.50 control
connection started
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Received PPTP Control Message
(type: 1)
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Made a START CTRL CONN RPLY packet
Jun  5 10:07:57 flame pptpd[3271]: CTRL: I wrote 156 bytes to the client.
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Sent packet to client
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Received PPTP Control Message
(type: 7)
Jun  5 10:07:57 flame pptpd[3271]: CTRL: 0 min_bps, 0 max_bps, 32 window
size
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Made a OUT CALL RPLY packet
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Starting call (launching pppd,
opening GRE)
Jun  5 10:07:57 flame pptpd[3271]: CTRL: pty_fd = 5
Jun  5 10:07:57 flame pptpd[3271]: CTRL: tty_fd = 6
Jun  5 10:07:57 flame pptpd[3272]: CTRL (PPPD Launcher): Connection speed =
115200
Jun  5 10:07:57 flame pptpd[3272]: CTRL (PPPD Launcher): local address =
192.168.0.2
Jun  5 10:07:57 flame pptpd[3272]: CTRL (PPPD Launcher): remote address =
192.168.1.2
Jun  5 10:07:57 flame pppd[3272]: pppd 2.4.1 started by root, uid 0
Jun  5 10:07:57 flame pppd[3272]: Using interface ppp0
Jun  5 10:07:57 flame pppd[3272]: Connect: ppp0 <--> /dev/pts/1
Jun  5 10:07:57 flame pppd[3272]: sent [LCP ConfReq id=0x1 <asyncmap 0x0>
<auth chap 81> <magic 0xac22a8bc> <pcomp> <accomp>]
Jun  5 10:07:57 flame pptpd[3271]: CTRL: I wrote 32 bytes to the client.
Jun  5 10:07:57 flame pptpd[3271]: CTRL: Sent packet to client
Jun  5 10:07:57 flame pptpd[3271]: Buffering out-of-order packet; got 1
after 4294967295
Jun  5 10:08:00 flame pppd[3272]: sent [LCP ConfReq id=0x1 <asyncmap 0x0>
<auth chap 81> <magic 0xac22a8bc> <pcomp> <accomp>]
Jun  5 10:08:00 flame pptpd[3271]: Packet reorder timeout waiting for 0
Jun  5 10:08:00 flame pptpd[3271]: Buffering out-of-order packet; got 2
after 0
Jun  5 10:08:00 flame pppd[3272]: rcvd [LCP ConfReq id=0x1 <magic 0x9547>
<pcomp> <accomp>]
Jun  5 10:08:00 flame pppd[3272]: sent [LCP ConfAck id=0x1 <magic 0x9547>
<pcomp> <accomp>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0>
<auth chap 81> <magic 0xac22a8bc> <pcomp> <accomp>]
Jun  5 10:08:00 flame pppd[3272]: sent [CHAP Challenge id=0x1
<572811b06969278d3b9ff2b6ad10718b>, name = "flame"]
Jun  5 10:08:00 flame pppd[3272]: rcvd [CHAP Response id=0x1
<8958847f34663961012a2bfd2e4c004f00000000000000003b7cafb23f5f4088abd6f79046d785ea16631f7c42bffb9304>,
name = "rng"]
Jun  5 10:08:00 flame pppd[3272]: sent [CHAP Success id=0x1
"S=9FE5ED19EB9ED845C90B076550BDCF47E216621C"]
Jun  5 10:08:00 flame pppd[3272]: sent [IPCP ConfReq id=0x1 <addr
192.168.0.2> <compress VJ 0f 01>]
Jun  5 10:08:00 flame kernel: PPP BSD Compression module registered 
Jun  5 10:08:00 flame kernel: PPP Deflate Compression module registered 
Jun  5 10:08:00 flame pppd[3272]: sent [CCP ConfReq id=0x1 <deflate 15>
<deflate(old#) 15> <bsd v1 15>]
Jun  5 10:08:00 flame pppd[3272]: MSCHAP-v2 peer authentication succeeded
for rng
Jun  5 10:08:00 flame pppd[3272]: rcvd [IPCP ConfReq id=0x1 <addr 0.0.0.0>
<ms-dns1 0.0.0.0> <ms-wins 0.0.0.0> <ms-dns3 0.0.0.0> <ms-wins 0.0.0.0>]
Jun  5 10:08:00 flame pppd[3272]: sent [IPCP ConfRej id=0x1 <ms-dns1
0.0.0.0> <ms-wins 0.0.0.0> <ms-dns3 0.0.0.0> <ms-wins 0.0.0.0>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [CCP ConfReq id=0x1 <mppe 1 0 0 30>]
Jun  5 10:08:00 flame pppd[3272]: sent [CCP ConfRej id=0x1 <mppe 1 0 0 60>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [IPCP ConfRej id=0x1 <compress VJ 0f
01>]
Jun  5 10:08:00 flame pppd[3272]: sent [IPCP ConfReq id=0x2 <addr
192.168.0.2>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [CCP ConfRej id=0x1 <deflate 15>
<deflate(old#) 15> <bsd v1 15>]
Jun  5 10:08:00 flame pppd[3272]: sent [CCP ConfReq id=0x2]
Jun  5 10:08:00 flame pppd[3272]: rcvd [IPCP ConfReq id=0x2 <addr 0.0.0.0>]
Jun  5 10:08:00 flame pppd[3272]: sent [IPCP ConfNak id=0x2 <addr
192.168.201.240>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [CCP ConfReq id=0x2]
Jun  5 10:08:00 flame pppd[3272]: sent [CCP ConfAck id=0x2]
Jun  5 10:08:00 flame pppd[3272]: rcvd [IPCP ConfAck id=0x2 <addr
192.168.0.2>]
Jun  5 10:08:00 flame pppd[3272]: rcvd [CCP ConfAck id=0x2]
Jun  5 10:08:00 flame pppd[3272]: rcvd [IPCP ConfReq id=0x3 <addr
192.168.201.240>]
Jun  5 10:08:00 flame pppd[3272]: sent [IPCP ConfAck id=0x3 <addr
192.168.201.240>]
Jun  5 10:08:00 flame pppd[3272]: found interface eth0 for proxy arp
Jun  5 10:08:00 flame pppd[3272]: local  IP address 192.168.0.2
Jun  5 10:08:00 flame pppd[3272]: remote IP address 192.168.201.240
Jun  5 10:08:00 flame pppd[3272]: Script /etc/ppp/ip-up started (pid 3275)
Jun  5 10:08:00 flame pppd[3272]: rcvd [CCP TermReq id=0x3]
Jun  5 10:08:00 flame pppd[3272]: CCP terminated by peer
Jun  5 10:08:00 flame pppd[3272]: sent [CCP TermAck id=0x3]
Jun  5 10:08:00 flame pppd[3272]: Compression disabled by peer.
Jun  5 10:08:01 flame pppd[3272]: Script /etc/ppp/ip-up finished (pid 3275),
status = 0x0
Jun  5 10:08:05 flame pppd[3272]: rcvd [LCP TermReq id=0x2]
Jun  5 10:08:05 flame pppd[3272]: LCP terminated by peer
Jun  5 10:08:05 flame pppd[3272]: Script /etc/ppp/ip-down started (pid 3305)
Jun  5 10:08:05 flame pppd[3272]: sent [LCP TermAck id=0x2]
Jun  5 10:08:05 flame pptpd[3271]: CTRL: Received PPTP Control Message
(type: 12)
Jun  5 10:08:05 flame pptpd[3271]: CTRL: Made a CALL DISCONNECT RPLY packet
Jun  5 10:08:05 flame pptpd[3271]: CTRL: Received CALL CLR request (closing
call)
Jun  5 10:08:05 flame pptpd[3271]: CTRL: I wrote 148 bytes to the client.
Jun  5 10:08:05 flame pptpd[3271]: CTRL: Sent packet to client
Jun  5 10:08:05 flame pppd[3272]: Modem hangup
Jun  5 10:08:05 flame pppd[3272]: Connection terminated.
Jun  5 10:08:05 flame pppd[3272]: Connect time 0.2 minutes.
Jun  5 10:08:05 flame pppd[3272]: Sent 499 bytes, received 452 bytes.
Jun  5 10:08:05 flame pppd[3272]: Waiting for 1 child processes...
Jun  5 10:08:05 flame pppd[3272]:   script /etc/ppp/ip-down, pid 3305
Jun  5 10:08:05 flame pppd[3272]: Script /etc/ppp/ip-down finished (pid
3305), status = 0x0
Jun  5 10:08:05 flame pppd[3272]: Exit.
Jun  5 10:08:10 flame pptpd[3271]: GRE: read error: Bad file descriptor
Jun  5 10:08:10 flame pptpd[3271]: CTRL: PTY read or GRE write failed
(pty,gre)=(-1,-1)
Jun  5 10:08:10 flame pptpd[3271]: CTRL: Client 192.168.101.50 control
connection finished
Jun  5 10:08:10 flame pptpd[3271]: CTRL: Exiting now
Jun  5 10:08:10 flame pptpd[3154]: MGR: Reaped child 3271


On Thu, Jun 06, 2002 at 10:40:19AM +0200, R. de Vroede wrote:
> That log looks fishy..
> The reaped child problem was fixed in 1.1.2.
> http://planetmirror.com/pub/mppe
> You should get it.
> 
> Regards,
> Richard
> 
> 
> > OK,  I have been having a lot of trouble getting encryption working with a
> > RH6.2 box and a win98 box.
> > 
> > I have the following setup:
> > RH 6.2 box running with a 2.2.20 kernel
> > pptp-1.0.1
> > pppd-2.4.1
> > and I had to go here to find the kernel patches for ppp and mppe
> >    http://ftp.samba.org/ftp/unpacked/ppp/
> > (pppd compiles from this archive but does not work right.  The kernel
> > modules seem to work though)
> > 
> > The problem is I turn on encryption on the windows box and then try
> > connecting.  I get the dreaded Error 742 message.  I look at my linux box
> > and all of the modules are present (ppp_deflate, bsd_comp, ppp_mppe, ppp,
> > slhc).
> > 
> > My options file looks like this:
> > 
> > lock
> > debug 
> > name flame
> > procyarp
> > +chapms-v2
> > mppe-40
> > mppe-128
> > mppe-stateless
> > 
> > I have tried several combinations of removing the mppe lines with no
> > success.  
> > 
> > What am I doing wrong?  Also is there a cononoical archive of all the right
> > patches/kernel modules/etc that I need to be looking at?  I can't help but
> > think that there might be something that didn't compile right. 
> > 
> > TIA,
> > Robert
> > 
> > _______________________________________________
> > pptp-server maillist  -  pptp-server at lists.schulte.org
> > http://lists.schulte.org/mailman/listinfo/pptp-server
> > --- To unsubscribe, go to the url just above this line. --
> -- 
> Richard de Vroede
> (r.devroede at linvision.com)
> ------------------------------------------------
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