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From: Darius Moos <moos@neuron.bsd.uni-passau.de>
Message-Id: <199607282000.WAA00702@neuron.bsd.uni-passau.de>
Subject: FreeBSD-2.1-pppd/pap <-> Linux-2.x-PPP => VERY BIG problem
To: questions@FreeBSD.org
Date: Sun, 28 Jul 1996 22:00:08 +0200 (MET DST)
Cc: hackers@FreeBSD.org
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Hi all,

i'm having hell on earth configuring pppd (kernel-ppp) to work with PAP.
Maybe someone could help me with this problem.
First:
  I'm running FreeBSD-2.1(R)
  I have already run kernel-ppp succesfully to a FreeBSD-box (2.1R) and a
  Linux-box (1.x). I've also connected to the FreeBSD-box with CHAP. No problem.

Next:
  I'm initiating the whole process from a bash-script with a case-statement:
    case $1 in
    .
    .

      deg)    /usr/sbin/pppd -d connect "~/.ppp.deg.up <phone-nr.>" \
	      file ~/.ppprc.deg 0.0.0.0: /dev/cuaa1 ;;
    .
    .
    esac
  ~/.ppp.deg.up is also a bash-script for chat-dial:
    chat -v -t 90 "" atz0 OK atd$1 CONNECT ""
  ~/.ppprc.deg is the optionsfile specific to this connection:
    user moos
    name moos
    +pap
    -chap
    ipcp-accept-remote
  ~/.ppprc includes options common to all my personal connections:
    defaultroute
  /etc/ppp/options includes everytime-options for pppd:
    netmask 255.255.255.248
    crtscts
    modem
  /etc/ppp/pap-secrets includes the client-server-password-data:
    moos    *       <my_password>

Misc:
  My provider offers dial-in-lines for PPP using PAP-authentication with
  dynamic IPs running Linux (2.x). My username is moos. I don't know the
  server-name for the authentication, therefor i've put a '*' in the
  pap-secrets-file. He gave me the secret and it stands where i've written
  <my_password>.

The HORRORSHOW:
  When i start the dialing-process nothing happens. No error on console.
  Here is the relevant part of the pppd-log-file:

    Jul 28 20:42:11 neuron pppd[556]: pppd 2.1.2 started by moos, uid 30001
    Jul 28 20:42:35 neuron pppd[557]: Connected...
    Jul 28 20:42:36 neuron pppd[557]: Using interface ppp0
    Jul 28 20:42:36 neuron pppd[557]: Connect: ppp0 <--> /dev/cuaa1
    Jul 28 20:42:36 neuron pppd[557]: sent [LCP ConfReq id=0x1 <mru 1500> <auth upap> <magic 0x31ffa6c7> <pcomp> <accomp>]
    Jul 28 20:42:39 neuron pppd[557]: sent [LCP ConfReq id=0x1 <mru 1500> <auth upap> <magic 0x31ffa6c7> <pcomp> <accomp>]
    Jul 28 20:42:39 neuron pppd[557]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap 80> <magic 0x1b52> <pcomp> <accomp>]
    Jul 28 20:42:39 neuron pppd[557]: sent [LCP ConfRej id=0x0 <auth chap 80>]
    Jul 28 20:42:39 neuron pppd[557]: rcvd [LCP ConfRej id=0x1 <auth upap>]
    Jul 28 20:42:39 neuron pppd[557]: sent [LCP ConfReq id=0x2 <mru 1500> <magic 0x31ffa6c7> <pcomp> <accomp>]
    Jul 28 20:42:40 neuron pppd[557]: rcvd [LCP TermReq id=0x1 00 00 02 dc]
    Jul 28 20:42:40 neuron pppd[557]: sent [LCP TermAck id=0x1]
    Jul 28 20:42:42 neuron pppd[557]: sent [LCP ConfReq id=0x2 <mru 1500> <magic 0x31ffa6c7> <pcomp> <accomp>]
    Jul 28 20:43:07 neuron last message repeated 8 times
    Jul 28 20:43:10 neuron pppd[557]: LCP: timeout sending Config-Requests
    Jul 28 20:43:10 neuron pppd[557]: Connection terminated.
    Jul 28 20:43:10 neuron pppd[557]: Exit.

More horror:
  - I've also tried using the auth-option. The result:
      Jul 27 15:19:03 neuron pppd[1024]: pppd 2.1.2 started by moos, uid 30001
      Jul 27 15:19:27 neuron pppd[1025]: Connected...
      Jul 27 15:19:28 neuron pppd[1025]: Using interface ppp0
      Jul 27 15:19:28 neuron pppd[1025]: Connect: ppp0 <--> /dev/cuaa1
      Jul 27 15:19:28 neuron pppd[1025]: sent [LCP ConfReq id=0x1 <mru 1500> <magic 0x31f2f150> <pcomp> <accomp>]
      Jul 27 15:19:31 neuron pppd[1025]: sent [LCP ConfReq id=0x1 <mru 1500> <magic 0x31f2f150> <pcomp> <accomp>]
      Jul 27 15:19:31 neuron pppd[1025]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap 80> <magic 0x7bcf> <pcomp> <accomp>]
      Jul 27 15:19:31 neuron pppd[1025]: sent [LCP ConfNak id=0x0 <auth chap 05>]
      Jul 27 15:19:31 neuron pppd[1025]: rcvd [LCP ConfAck id=0x1 <mru 1500> <magic 0x31f2f150> <pcomp> <accomp>]
      Jul 27 15:19:31 neuron pppd[1025]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth 0xc027 01 00 00 01> <magic 0x7bcf> <pcomp> <accomp>]
      Jul 27 15:19:31 neuron pppd[1025]: sent [LCP ConfRej id=0x1 <auth 0xc027 01 00 00 01>]
      Jul 27 15:19:31 neuron pppd[1025]: rcvd [LCP TermReq id=0x2 00 00 02 dc]
      Jul 27 15:19:31 neuron pppd[1025]: sent [LCP TermAck id=0x2]
      Jul 27 15:19:34 neuron pppd[1025]: sent [LCP ConfReq id=0xff <mru 1500> <magic 0x31f2f150> <pcomp> <accomp>]
      Jul 27 15:20:01 neuron last message repeated 9 times
      Jul 27 15:20:04 neuron pppd[1025]: LCP: timeout sending Config-Requests
      Jul 27 15:20:04 neuron pppd[1025]: Connection terminated.
      Jul 27 15:20:04 neuron pppd[1025]: Exit.

  - I've tried without the options "auth [+-]pap [+-]chap". No success.
  - I've tried "* * <my_password>" in pap-secrets. No success.
  - I've tried "+ua <filename>" with user and password in <filename>. No success.
  - I've tried using CHAP. The result:
      Jul 27 15:33:24 neuron pppd[1071]: pppd 2.1.2 started by moos, uid 30001
      Jul 27 15:33:47 neuron pppd[1072]: Connected...
      Jul 27 15:33:48 neuron pppd[1072]: Using interface ppp0
      Jul 27 15:33:48 neuron pppd[1072]: Connect: ppp0 <--> /dev/cuaa1
      Jul 27 15:33:48 neuron pppd[1072]: sent [LCP ConfReq id=0x1 <mru 1500> <auth chap 05> <magic 0x31ff4564> <pcomp> <accomp>]
      Jul 27 15:33:51 neuron pppd[1072]: sent [LCP ConfReq id=0x1 <mru 1500> <auth chap 05> <magic 0x31ff4564> <pcomp> <accomp>]
      Jul 27 15:33:51 neuron pppd[1072]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap 80> <magic 0x60ce> <pcomp> <accomp>]
      Jul 27 15:33:51 neuron pppd[1072]: sent [LCP ConfNak id=0x0 <auth chap 05>]
      Jul 27 15:33:52 neuron pppd[1072]: rcvd [LCP ConfRej id=0x1 <auth chap 05>]
      Jul 27 15:33:52 neuron pppd[1072]: sent [LCP ConfReq id=0x2 <mru 1500> <magic 0x31ff4564> <pcomp> <accomp>]
      Jul 27 15:33:52 neuron pppd[1072]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth 0xc027 01 00 00 01> <magic 0x60ce> <pcomp> <accomp>]
      Jul 27 15:33:52 neuron pppd[1072]: sent [LCP ConfRej id=0x1 <auth 0xc027 01 00 00 01>]
      Jul 27 15:33:52 neuron pppd[1072]: rcvd [LCP ConfAck id=0x2 <mru 1500> <magic 0x31ff4564> <pcomp> <accomp>]
      Jul 27 15:33:52 neuron pppd[1072]: rcvd [LCP TermReq id=0x2 00 00 02 dc]
      Jul 27 15:33:52 neuron pppd[1072]: sent [LCP TermAck id=0x2]
      Jul 27 15:33:55 neuron pppd[1072]: sent [LCP ConfReq id=0xff <mru 1500> <magic 0x31ff4564> <pcomp> <accomp>]
      Jul 27 15:34:22 neuron last message repeated 9 times
      Jul 27 15:34:25 neuron pppd[1072]: LCP: timeout sending Config-Requests
      Jul 27 15:34:25 neuron pppd[1072]: Connection terminated.
      Jul 27 15:34:25 neuron pppd[1072]: Exit.
  - I've tried making changes to /usr/src/usr.sbin/pppd/chap.h (I know this is
    NOT the right way to solve the problem):
      I changed
	#define CHAP_DIGEST_MD5         5
      to
	#define CHAP_DIGEST_MD5         128
      compiled and installed pppd. The result:
        Jul 27 17:49:21 neuron pppd[2428]: pppd 2.1.2 started by moos, uid 30001
	Jul 27 17:49:44 neuron pppd[2429]: Connected...
	Jul 27 17:49:45 neuron pppd[2429]: Using interface ppp0
	Jul 27 17:49:45 neuron pppd[2429]: Connect: ppp0 <--> /dev/cuaa1
	Jul 27 17:49:45 neuron pppd[2429]: sent [LCP ConfReq id=0x1 <mru 1500> <auth chap 80> <magic 0x31fff551> <pcomp> <accomp>]
	Jul 27 17:49:48 neuron pppd[2429]: sent [LCP ConfReq id=0x1 <mru 1500> <auth chap 80> <magic 0x31fff551> <pcomp> <accomp>]
	Jul 27 17:49:49 neuron pppd[2429]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap 80> <magic 0x6ca0> <pcomp> <accomp>]
	Jul 27 17:49:49 neuron pppd[2429]: sent [LCP ConfAck id=0x0 <asyncmap 0x0> <auth chap 80> <magic 0x6ca0> <pcomp> <accomp>]
	Jul 27 17:49:49 neuron pppd[2429]: rcvd [LCP ConfRej id=0x1 <auth chap 80>]
	Jul 27 17:49:49 neuron pppd[2429]: sent [LCP ConfReq id=0x2 <mru 1500> <magic 0x31fff551> <pcomp> <accomp>]
	Jul 27 17:49:49 neuron pppd[2429]: rcvd [LCP ConfAck id=0x2 <mru 1500> <magic 0x31fff551> <pcomp> <accomp>]
	Jul 27 17:49:51 neuron pppd[2429]: rcvd [CHAP Challenge id=0x66 <7c4b5d06001cf056>, name = ""]
	Jul 27 17:49:51 neuron pppd[2429]: sent [CHAP Response id=0x66 <872c2f92d6c4ae3fb6fe9067860b8ac5>, name = ""]
	Jul 27 17:49:53 neuron pppd[2429]: rcvd [CHAP Challenge id=0x67 <12dfdce9c94b6340>, name = ""]
	Jul 27 17:49:53 neuron pppd[2429]: sent [CHAP Response id=0x67 <660020266cb6c283d19162396bc37fda>, name = ""]
	.
	. <Challenge - Responses repeatings deleted>
	.
	Jul 27 17:50:05 neuron pppd[2429]: rcvd [CHAP Challenge id=0x6d <ddf5a9f2411cd2af>, name = ""]
	Jul 27 17:50:05 neuron pppd[2429]: sent [CHAP Response id=0x6d <342b335f88174593703049bc0f6bcf1b>, name = ""]
	Jul 27 17:50:07 neuron pppd[2429]: rcvd [LCP TermReq id=0x1 00 00 02 ce]
	Jul 27 17:50:07 neuron pppd[2429]: LCP terminated at peer's request
	Jul 27 17:50:07 neuron pppd[2429]: sent [LCP TermAck id=0x1]
	Jul 27 17:50:10 neuron pppd[2429]: Connection terminated.
	Jul 27 17:50:10 neuron pppd[2429]: Exit.

Conclusion:
  No end of the HORROR-show.

Maybe there is someone on the net,
  who knows what's going on
  who knows where the problem is
  who knows a solution or workaround
  who would help me
  who knows that FreeBSD-2.1(R)-pppd and Linux-2.x-PPP can NOT work together

I don't have the option of upgrading to FreeBSD-2.1.5(R)
If upgrading would solve my problem, would it be possible to run a statically
compiled pppd of FreeBSD-2.1.5 under FreeBSD-2.1 ?

Please help me with this damned problem; i can't solve it on my own.
Any help is appreciated.

Many thanks in advance,

bye Darius.

email: moos@degnet.baynet.de
       moos@ithnet.com


P.S.: Sorry for this mail being so long and thaks for reading it to this point.