[pptp-server] Desperated Please Help.

[Thierry Coutelier]

Greetings,

I'm now 42 hours behind my box and I'm realy desperate.

I have a linux box kernel 2.3.20 with latest pptp and pppd
   which works fine.

Now I have to configure the same system on another box which
  has Intel cards (I can't use others :( ).

2.3.20 does not support this card so I had to use a more resent 
  kernel 2.2.25 (tried 2.3.21, 2.3.29) but there i can't get
  the pptp to work.
I tried everything (routing, gre options, pppd versions) but I can't
   get any single pack to go out on the correct interface.

The ppp connection works fine. I'm able to identify the remote user
  and I'm able to see he uses the correct address ....
In Debugging mode I see all the nice GRE packets going in and out
  of my eth0 interface and on my ppp0 interface i see the request:

00:46:24.890161 < 192.168.0.2 > ns1.pt.lu: icmp: echo request
00:46:29.387209 < 192.168.0.2 > ns1.pt.lu: icmp: echo request
00:46:33.893303 < 192.168.0.2 > ns1.pt.lu: icmp: echo request
00:46:38.386672 < 192.168.0.2 > ns1.pt.lu: icmp: echo request
00:46:42.887537 < 192.168.0.2 > ns1.pt.lu: icmp: echo request

5 packets received by filter

On eth0:

[root at pptp /home/ftp]# tcpdump -i eth0
Kernel filter, protocol ALL, datagram packet socket
tcpdump: listening on eth0
00:47:26.878094 < gre-proto-0x880B (gre encap)
00:47:26.878246 > [|gre] (gre encap)
00:47:31.377968 < gre-proto-0x880B (gre encap)
00:47:31.378045 > [|gre] (gre encap)
00:47:35.878382 < gre-proto-0x880B (gre encap)
00:47:35.878455 > [|gre] (gre encap)


As of my routing (which works well) I don't see a single request going
  out :((((

As I'm realy completly helpless If you want to see more iformation
  you may connect to the IP :  212.56.231.69
  User: thierry   Password: temp01
  root's password is temp01  too.

I need to have it working for tomorow evening and that's about 18hours
  left.

--
Thierry.Coutelier at linux.lu
http://www.linux.lu