[pptp-server] pptp connect up, but no packets?

[Eric Wampner]

Hi, this is a bit off topic as it deals with a linux client and a NT server.
I looked for debs.fuller.edu, supposed home of some pptp client info,
and it seems be gone. Pointers are welcome.

Server Windows NT 4.0 SP6a. Requires 128bit encrypt and chap v2

Client Linux RH6.1 Vanilla 2.2.13 kernel. RedHat Sourced ppp-2.3.10
ppp-2_3_10-openssl-norc4-mppe_patch and mppe_stateless.diff 
applied to ppp source. Files rc4.h rc4_enc.c rc4_locl.h and rc4_skey.c
copied from SSLeay-0.9.0b. ppp kernel install done, kernel recompiled,
pppd compiled. pptp-linux-1.0.2 installed. whew.

I get my dialup pppd connected. I run my pptp startup which looks like
pptp ntserver debug name "DOMAIN\\USER" remotename ntserver +chapms-v2 +mppe-128 noauth

I get 
Jan  7 09:52:50 localhost (unknown)[629]: log[pptp_dispatch_ctrl_packet:pptp_ctr
l.c:531]: Client connection established.
Jan  7 09:52:51 localhost (unknown)[629]: log[pptp_dispatch_ctrl_packet:pptp_ctr
l.c:637]: Outgoing call established.
Jan  7 09:52:52 localhost modprobe: can't locate module char-major-108
Jan  7 09:52:52 localhost pppd[632]: pppd 2.3.10 started by root, uid 0
Jan  7 09:52:52 localhost kernel: registered device ppp1
Jan  7 09:52:52 localhost pppd[632]: Using interface ppp1
Jan  7 09:52:52 localhost pppd[632]: Connect: ppp1 <--> /dev/ttya0
Jan  7 09:52:54 localhost pppd[632]: Remote message: XXXKEYXXX
Jan  7 09:52:55 localhost kernel: PPP MPPE compression module registered
Jan  7 09:52:55 localhost pppd[632]: Unsupported protocol (0x802b) received
Jan  7 09:52:55 localhost pppd[632]: Unsupported protocol (0x803f) received
Jan  7 09:52:55 localhost pppd[632]: MPPE 128 bit, non-stateless compression enabled
Jan  7 09:52:55 localhost pppd[632]: local  IP address XXXvalid client ipXXX
Jan  7 09:52:55 localhost pppd[632]: remote IP address XXXvalid server ipXXX
Jan  7 09:53:10 localhost pppd[632]: Protocol-Reject for unsupported protocol 0xce2f
Jan  7 09:53:11 localhost pppd[632]: Protocol-Reject for unsupported protocol 0xd6b4
Jan  7 09:53:14 localhost pppd[632]: Protocol-Reject for unsupported protocol 0xb46e

I can't get any packets accross, I tried ping and telnet with no luck, and each
attempt generates more of the same messages.

Now this error has been noted on the list
http://lists.schulte.org/pipermail/pptp-server/1999-December/001249.html
but not with an NT server, and no apparent resolution.

I'll triple check for SP6.1a, but does anybody have any other suggestions?
If I can't get this working I'll probably owe my boss lunch, and I just can't
handle that. :-)

eric