[pptp-server] Linux PoPToP 2.4 with LAN Internet connection.

John Stephens John.Stephens at smithscity.co.nz
Tue Mar 5 21:34:33 CST 2002


Hi

I have looked at all the how to's and been through the archives but I must
have missed something.
I am trying to connect from win2k dial up to an ISP via a VPN to a Linux
PoPToP 2.4 on an intranet
I can get it to work across the intranet so I presume the security and logon
settings are correct.

This is the set up.

Linux box Running PoPToP 2.4 with gateway pointing to Firewall Router which
then passes it on to an internal address to our ISP's Linux firewall which
does NAT and passes it on to the outside world.
TCP 1723 and GRE are allowed  to pass on both routers.
The Firewall Routers logs indicate both are passing through it and it seems
from the linux log to be getting 70% through verification and authentication
before deciding that it does not want to continue.

The Win2K side gives me a 619 error  Specified port is not connected. and
the helpful advice of try restarting.  Normal Windows Solution.

Linux log 

Mar  6 16:04:14 slinux pptpd[832]: MGR: Launching /usr/sbin/pptpctrl to
handle client
Mar  6 16:04:14 slinux pptpd[832]: CTRL: local address = 172.16.0.50
Mar  6 16:04:14 slinux pptpd[832]: CTRL: remote address = 192.168.0.1
Mar  6 16:04:14 slinux pptpd[832]: CTRL: pppd speed = 115200
Mar  6 16:04:14 slinux pptpd[832]: CTRL: pppd options file =
/etc/ppp/options
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Client 203.96.149.75 control
connection started
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Received PPTP Control Message
(type: 1)
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Made a START CTRL CONN RPLY packet
Mar  6 16:04:14 slinux pptpd[832]: CTRL: I wrote 156 bytes to the client.
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Sent packet to client
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Received PPTP Control Message
(type: 7)
Mar  6 16:04:14 slinux pptpd[832]: CTRL: 0 min_bps, 1525 max_bps, 32 window
size
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Made a OUT CALL RPLY packet
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Starting call (launching pppd,
opening GRE)
Mar  6 16:04:14 slinux pptpd[832]: CTRL: pty_fd = 5
Mar  6 16:04:14 slinux pptpd[832]: CTRL: tty_fd = 6
Mar  6 16:04:14 slinux pptpd[832]: CTRL: I wrote 32 bytes to the client.
Mar  6 16:04:14 slinux pptpd[833]: CTRL (PPPD Launcher): Connection speed =
115200
Mar  6 16:04:14 slinux pptpd[833]: CTRL (PPPD Launcher): local address =
172.16.0.50
Mar  6 16:04:14 slinux pptpd[833]: CTRL (PPPD Launcher): remote address =
192.168.0.1
Mar  6 16:04:14 slinux pppd[833]: pppd 2.4.0 started by root, uid 0
Mar  6 16:04:14 slinux pppd[833]: using channel 3
Mar  6 16:04:14 slinux pppd[833]: Using interface ppp0
Mar  6 16:04:14 slinux pppd[833]: Connect: ppp0 <--> /dev/pts/1
Mar  6 16:04:14 slinux pppd[833]: sent [LCP ConfReq id=0x1 <asyncmap 0x0>
<auth chap MD5> <magic 0x252b63f> <pcomp> <accomp>]
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Sent packet to client
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Received PPTP Control Message
(type: 15)
Mar  6 16:04:14 slinux pptpd[832]: CTRL: Got a SET LINK INFO packet with
standard ACCMs
Mar  6 16:04:17 slinux pppd[833]: sent [LCP ConfReq id=0x1 <asyncmap 0x0>
<auth chap MD5> <magic 0x252b63f> <pcomp> <accomp>]
Mar  6 16:04:41 slinux last message repeated 8 times
Mar  6 16:04:44 slinux pppd[833]: LCP: timeout sending Config-Requests
Mar  6 16:04:44 slinux pppd[833]: Connection terminated.
Mar  6 16:04:44 slinux pppd[833]: Couldn't release PPP unit: Inappropriate
ioctl for device
Mar  6 16:04:44 slinux pppd[833]: Exit.
Mar  6 16:04:44 slinux pptpd[832]: Error reading from pppd: Input/output
error
Mar  6 16:04:44 slinux pptpd[832]: CTRL: GRE read or PTY write failed
(gre,pty)=(6,5)
Mar  6 16:04:44 slinux pptpd[832]: CTRL: Client 203.96.149.75 control
connection finished
Mar  6 16:04:44 slinux pptpd[832]: CTRL: Exiting now
Mar  6 16:04:44 slinux pptpd[249]: MGR: Reaped child 832

The 203.96.149.75 address is the one given to the Win2K PC dialing in to the
Internet.

As there is no modem ISDN etc connection is there something that I have
missed with the PPP setup

I'm relatively new to Linux so more detail than less would be helpful.

Thanks John


 

 





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