[pptp-server] more questions about the win2k "619 error" & "742 error"

angelbracket angelbracket at yahoo.com
Mon Mar 26 14:47:49 CST 2001


Hello,

    I have some problems with my windows 2000 client (high encryption pack/128bit) to connect on pptpd.
    I went the archive and I think that my probles may lay with the kernel and modules [ I'm new to kernel
    operations etc, there will be "stupid" questions, but if you want to explain some questions in this posting, pls :) ]

    Included below is the problem, mysetup, the problems I encoutered and tried solutions, my questions and a 
    log from my system.

    I would really appreciate if someone could help me with this problem. I feel I'm close in finishing this setup
    on my box, but there are some gaps that need to be cleared up in my working knowledge of linux...

    Sincerely,
    Stijn H.


    This is the problem :
            - username en password are verified
            - windows tries to "register the pc to the remote network"
            - then I get the "619 error = specified port is not connected"       
                        [ note: something odd: when I keep the redial option active,
                        I get sometimes the 742 error, or "the remote computer does
                        not support the required data encryption type]
            
    For the setup I used :
            - the pptpd how to on http://home.swbell.net/berzerke/2.4_Kernel_PPTPD-HOWTO.txt
            - kernel 2.4.2
            - rh 7.0
            - patches: linux-2.4.0-openssl-0.9.6-mppe.patch.gz, ppp-2.4.0-openssl-0.9.6-mppe.patch.gz
            - ppp-2.4.0.tar.gz
            - pptpd 1.1.2
            - local lan, win2k & linux
            - only one eth card (don't have a second available on this moment)
    
            I followed the manual, and as far as I noted, everything went fine. I used the config file on 
            http://home.swbell.net with modified cpu etc to compile my patched kernel.

    Solutions I tried:
            - I got an error on ppp, I applied the solution from the how to:

                    mknod /dev/ppp c 108 0
                    chmod 600 /dev/ppp

                    -> the problem was solved

            - then I tried to connect with the win2k client and got the 619 error;
            I found in the mailinglist history the same problem with the same log mssg and with the solutions concerning
            applying ipchains rules for the GRE etc:

                    - I tried to apply some iptables lines with the info I found on http://home.swbell.net/berzerke for binding those
                    GRE and specific ports that pptp needed:
                         I got : (for any iptable line)
                         e.g.:
                                [root at upuaut log]# /sbin/iptables -P INPUT DROP
                                iptables v1.1.1: can't initialize iptables table `filter': iptables who? (do you need to insmod?)
                                Perhaps iptables or your kernel needs to be upgraded.
                         so I did an insmod on iptables:
                                [root at upuaut log]# insmod iptables
                                insmod: iptables: no module by that name found

                         and tried some ipchains rules:
                         e.g. :[root at upuaut log]# /sbin/ipchains -A input -p 47 -j ACCEPT
                         I got:  ipchains: Protocol not available

                                 [ note : I compiled the 2.4.2 kernel with "network packet filtering (replaces ipchains)" .., but why does it connect &                                                     with the config script mentionned in the how to file, but what's the problem if the client authenticates but can't bind
                                    a port ?]
                                    
                                Questions : 

                                - how do I know that all the modules are working ?
                                - why does ipchais does not know that certain protocol ?
                                - how to implement GRE with iptables ? what's wrong with it ?
                                - why does my iptable mod fail and how can I solve this ?
                                - (ev.) could someone post here me his kernel script how to compile everything correct with the 2.4.2 kernel ?
                                - (ev.) could someone help me with the iptables rules needed ?



paste of /var/log/messages

Mar 26 19:56:07 upuaut pppd[905]: pppd 2.4.0 started by root, uid 0
Mar 26 19:56:07 upuaut pppd[905]: Using interface ppp0
Mar 26 19:56:07 upuaut pppd[905]: Connect: ppp0 <--> /dev/pts/2
Mar 26 19:56:09 upuaut pptpd[904]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
Mar 26 19:56:09 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:56:09 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:56:09 upuaut pppd[905]: MSCHAP-v2 peer authentication succeeded for test
Mar 26 19:56:09 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:56:09 upuaut pppd[905]: found interface eth0 for proxy arp
Mar 26 19:56:09 upuaut pppd[905]: local  IP address 192.168.0.70
Mar 26 19:56:09 upuaut pppd[905]: remote IP address 192.168.0.80
Mar 26 19:56:15 upuaut pptpd[904]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
Mar 26 19:56:15 upuaut pppd[905]: LCP terminated by peer (=^T,M-}^@<M-Mt^@^@^BM-f)
Mar 26 19:56:18 upuaut pppd[905]: Connection terminated.
Mar 26 19:56:18 upuaut pppd[905]: Connect time 0.2 minutes.
Mar 26 19:56:18 upuaut pppd[905]: Sent 143 bytes, received 1505 bytes.
Mar 26 19:56:18 upuaut pppd[905]: Exit.
Mar 26 19:56:18 upuaut pptpd[904]: Error reading from pppd: Input/output error
Mar 26 19:56:18 upuaut pptpd[904]: CTRL: GRE read or PTY write failed (gre,pty)=(5,4)
Mar 26 19:56:18 upuaut pptpd[904]: CTRL: Client 192.168.0.54 control connection finished
Mar 26 19:57:18 upuaut pptpd[928]: CTRL: Client 192.168.0.54 control connection started
Mar 26 19:57:18 upuaut pptpd[928]: CTRL: Starting call (launching pppd, opening GRE)
Mar 26 19:57:18 upuaut pppd[929]: pppd 2.4.0 started by root, uid 0
Mar 26 19:57:18 upuaut pppd[929]: Using interface ppp0
Mar 26 19:57:18 upuaut pppd[929]: Connect: ppp0 <--> /dev/pts/2
Mar 26 19:57:20 upuaut pptpd[928]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
Mar 26 19:57:20 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:57:20 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:57:20 upuaut pppd[929]: MSCHAP-v2 peer authentication succeeded for test
Mar 26 19:57:20 upuaut modprobe: modprobe: Can't locate module ppp-compress-18
Mar 26 19:57:20 upuaut pppd[929]: found interface eth0 for proxy arp
Mar 26 19:57:20 upuaut pppd[929]: local  IP address 192.168.0.71
Mar 26 19:57:20 upuaut pppd[929]: remote IP address 192.168.0.81
Mar 26 19:57:26 upuaut pptpd[928]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
Mar 26 19:57:26 upuaut pppd[929]: LCP terminated by peer (KM->.M-Y^@<M-Mt^@^@^BM-f)
Mar 26 19:57:29 upuaut pppd[929]: Connection terminated.
Mar 26 19:57:29 upuaut pppd[929]: Connect time 0.2 minutes.
Mar 26 19:57:29 upuaut pppd[929]: Sent 143 bytes, received 1505 bytes.
Mar 26 19:57:29 upuaut pppd[929]: Exit.
             Mar 26 19:57:29 upuaut pppd[929]: Sent 143 bytes, received 1505 bytes.
Mar 26 19:57:29 upuaut pppd[929]: Exit.
Mar 26 19:57:29 upuaut pptpd[928]: Error reading from pppd: Input/output error
Mar 26 19:57:29 upuaut pptpd[928]: CTRL: GRE read or PTY write failed (gre,pty)=(5,4)
Mar 26 19:57:29 upuaut pptpd[928]: CTRL: Client 192.168.0.54 control connection finished
Mar 26 20:00:00 upuaut CROND[1077]: (root) CMD (   /sbin/rmmod -as)
Mar 26 20:01:00 upuaut CROND[1080]: (root) CMD (run-parts /etc/cron.hourly)





    





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