[pptp-server] problems getting basic pptp to work with win2k

Tue May 22 21:37:06 CDT 2001

Sage:

I think win2k does 40 bit out of the box, you may have to add just the mppe-40
line back in (or hack the reg?) in order to get it to connect.

You could try removing:

ipcp-accept-local
ipcp-accept-remote

Jerry Vonau

sage weil wrote:

> hi all,
>
> i'm having a really hard time getting a simple pptp tunnel to work from a
> win2k client.  i don't actually need any encryption.. my only goal is to
> get around my isps firewall which is blocking incoming tcp connections.
> even without any of the mppe patches applied tho it still isn't working.
>
> i've patched a fresh 2.4.4 kernel with the
> linux-2.4.0-openssl-0.9.6-mppe.patch.gz patch (which i assume isn't
> necessary but can't hurt).
>
> i'm using ppp-2.4.1 with the ppp-2.4.1-openssl-0.9.6-mppe-patch.gz patch
> applied.
>
> and i'm using pptpd-1.0.1 (also tried 1.1.2).  my win2k client is
> configured with the defaults except encryption isn't required.
>
> does anybody have any ideas why this isn't working?  it authetnicates but
> then ppp seems to just disconnect.  everything i've read seems to
> indicate that everything should just work without any problems at this
> point (and that the sticky part is teh encryption.. which i don't care
> about!).  Win2k reports error 734: The PPP link control protocol was
> terminated, but i can't figure out why pppd keeps dropping the connection.
>
> any suggestions would be much appreciated!
>
> thanks--
> sage
>
> here's what i see in syslog:
>
> May 23 00:45:27 kookoo pptpd[193]: MGR: Launching
> /usr/local/sbin/pptpctrl to handle client
> May 23 00:45:27 kookoo pptpd[193]: CTRL: pppd options file =
> /etc/ppp/options.w2k
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Client 216.246.35.217 control
> connection started
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Received PPTP Control Message
> (type: 1)
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Made a START CTRL CONN RPLY
> packet
> May 23 00:45:27 kookoo pptpd[193]: CTRL: I wrote 156 bytes to the client.
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Sent packet to client
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Received PPTP Control Message
> (type: 7)
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Set parameters to 1525 maxbps, 64
> window size
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Made a OUT CALL RPLY packet
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Starting call (launching pppd,
> opening GRE)
> May 23 00:45:27 kookoo pptpd[193]: CTRL: pty_fd = 5
> May 23 00:45:27 kookoo pptpd[193]: CTRL: tty_fd = 6
> May 23 00:45:27 kookoo pptpd[194]: CTRL (PPPD Launcher): Connection speed
> = 115200
> May 23 00:45:27 kookoo pptpd[193]: CTRL: I wrote 32 bytes to the client.
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Sent packet to client
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Received PPTP Control Message
> (type: 15)
> May 23 00:45:27 kookoo pptpd[193]: CTRL: Got a SET LINK INFO packet with
> standard ACCMs
> May 23 00:45:27 kookoo pppd[194]: pppd 2.4.1 started by root, uid 0
> May 23 00:45:27 kookoo pppd[194]: using channel 1
> May 23 00:45:27 kookoo pppd[194]: Using interface ppp0
> May 23 00:45:27 kookoo pppd[194]: Connect: ppp0 <--> /dev/pts/1
> May 23 00:45:27 kookoo pppd[194]: sent [LCP ConfReq id=0x1 <mru 1490>
> <asyncmap 0x0> <auth chap 81> <magic 0xbfffe735> <pcomp> <accomp>]
> May 23 00:45:27 kookoo pptpd[193]: GRE: Discarding duplicate packet
> May 23 00:45:27 kookoo pppd[194]: rcvd [LCP ConfNak id=0x1 <mru 1500>]
> May 23 00:45:27 kookoo pppd[194]: sent [LCP ConfReq id=0x2 <asyncmap 0x0>
> <auth chap 81> <magic 0xbfffe735> <pcomp> <accomp>]
> May 23 00:45:27 kookoo pppd[194]: rcvd [LCP ConfAck id=0x2 <asyncmap 0x0>
> <auth chap 81> <magic 0xbfffe735> <pcomp> <accomp>]
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP ConfReq id=0x1 <magic
> 0x17bf279e> <pcomp> <accomp> < 0d 03 06> <mrru 1614> <endpoint
> [local:69.af.c9.2f.44.59.42.2c.94.06.96.a7.ff.43.59.d7.00.00.00.06]>]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP ConfRej id=0x1 < 0d 03 06>
> <mrru 1614>]
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP ConfReq id=0x2 <magic
> 0x17bf279e> <pcomp> <accomp> <endpoint
> [local:69.af.c9.2f.44.59.42.2c.94.06.96.a7.ff.43.59.d7.00.00.00.06]>]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP ConfAck id=0x2 <magic
> 0x17bf279e> <pcomp> <accomp> <endpoint
> [local:69.af.c9.2f.44.59.42.2c.94.06.96.a7.ff.43.59.d7.00.00.00.06]>]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP EchoReq id=0x0
> magic=0xbfffe735]
> May 23 00:45:29 kookoo pppd[194]: sent [CHAP Challenge id=0x1
> <96dcdc49def3f865f3e52604054e7517>, name = "kookoo"]
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Received PPTP Control Message
> (type: 15)
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Ignored a SET LINK INFO packet
> with real ACCMs!
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP code=0xc id=0x3 17 bf 27 9e 4d
> 53 52 41 53 56 35 2e 30 30]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP CodeRej id=0x3 0c 03 00 12 17
> bf 27 9e 4d 53 52 41 53 56 35 2e 30 30]
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP code=0xc id=0x4 17 bf 27 9e 4d
> 53 52 41 53 2d 31 2d 4d 45 50 48 49 53 54 4f]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP CodeRej id=0x4 0c 04 00 18 17
> bf 27 9e 4d 53 52 41 53 2d 31 2d 4d 45 50 48 49 53 54 4f]
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP EchoRep id=0x0
> magic=0x17bf279e]
> May 23 00:45:29 kookoo pppd[194]: rcvd [CHAP Response id=0x1
> <6af83f1b920776df528622f0129d728700000000000000001157322bdcdbc26aa5067bbe1b092229400d4c93749ec9fc00>,
> name = "sage"]
> May 23 00:45:29 kookoo pppd[194]: sent [CHAP Success id=0x1
> "S=0A76F907F66B23E545A52130A8B1C75E125AA61B"]
> May 23 00:45:29 kookoo pppd[194]: sent [CCP ConfReq id=0x1 <bsd v1 15>]
> May 23 00:45:29 kookoo pppd[194]: sent [LCP TermReq id=0x5 "No network
> protocols running"]
> May 23 00:45:29 kookoo pppd[194]: MSCHAP-v2 peer authentication succeeded
> for sage
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Received PPTP Control Message
> (type: 15)
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Ignored a SET LINK INFO packet
> with real ACCMs!
> May 23 00:45:29 kookoo pppd[194]: rcvd [CCP ConfReq id=0x5 <mppe 1 0 0 1>]
> May 23 00:45:29 kookoo pppd[194]: rcvd [IPCP ConfReq id=0x6 <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>]
> May 23 00:45:29 kookoo pppd[194]: rcvd [CCP ConfRej id=0x1 <bsd v1 15>]
> May 23 00:45:29 kookoo pppd[194]: rcvd [LCP TermAck id=0x5 "No network
> protocols running"]
> May 23 00:45:29 kookoo pppd[194]: Connection terminated.
> May 23 00:45:29 kookoo pppd[194]: Connect time 0.1 minutes.
> May 23 00:45:29 kookoo pppd[194]: Sent 7 bytes, received 0 bytes.
> May 23 00:45:29 kookoo pppd[194]: Exit.
> May 23 00:45:29 kookoo pptpd[191]: MGR: Reaped child 193
> May 23 00:45:29 kookoo pptpd[193]: GRE: read(fd=5,buffer=804daa0,len=8196)
> from PTY failed: status = -1 error = Input/output error
> May 23 00:45:29 kookoo pptpd[193]: CTRL: PTY read or GRE write failed
> (pty,gre)=(5,6)
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Client 216.246.35.217 control
> connection finished
> May 23 00:45:29 kookoo pptpd[193]: CTRL: Exiting now
>
> /etc/pptpd.conf:
>
> option /etc/ppp/options.w2k
> localip 207.155.127.220
> remoteip 207.155.127.221
>
> /etc/ppp/options.w2k: (from the 2.4 kernel pptpd howto)
>
> debug
> name kookoo
> lock
> mtu 1490
> mru 1490
> proxyarp
> auth
> +chap
> +chapms
> +chapms-v2
> ipcp-accept-local
> ipcp-accept-remote
> lcp-echo-failure 3
> lcp-echo-interval 5
> deflate 0
> #mppe-128         # tried with and without mppe
> #mppe-40
> #mppe-stateless
> kdebug 1
>
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