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Old 04-21-2004, 03:44 PM   #1
LQ Newbie
Registered: Apr 2004
Distribution: Mandrake 10
Posts: 23

Rep: Reputation: 15
ppp_mppe support in mandrake 10

I'm trying to use pptp-php-gtk to configure and start a tunnel to a pptp vpm server at work...
The problm is that when I start the tunnel I get:

Using interface ppp0
pptp-php-gtk: monitoring interface ppp0
Connect: ppp0 <--> /dev/pts/0
Couldn't set pass-filter in kernel: Invalid argument
MPPE required, but kernel has no support.
Connection terminated.
pptp-php-gtk: pppd process terminated by signal 10
pptp-php-gtk: SIGUSR1
# modprobe ppp-compress-18
Results in:
FATAL: Module ppp_mppe not found.

The question is how do I go about getting the relevant files and installing them?
(Im clueless when it comes to patching the kernel )

I have just found an article here that mentions the follwoing:
2. mppe module that is shipped with 2.4.x kernel series is missing from the default kernel of this release 2.6.x, i wont blame nobody for this absent module but it is an inconvinence because i know a lot of people who connect to their company/organization's VPN using MS mppe protocol and they cant do it with the default 10.0 community releases kernel. As of the lastest information it will be shipped with the 10.0 stable release.
That at least backs up my conclusions that mppe isnt included as default, so any tips on getting and installing the relevant files?

Last edited by Jiblet; 04-21-2004 at 04:05 PM.
Old 04-21-2004, 04:55 PM   #2
LQ Newbie
Registered: Apr 2004
Distribution: Mandrake 10
Posts: 23

Original Poster
Rep: Reputation: 15
Just tried to use drakvpn...
It complained that it couldnt get the ipsec-tools from sunsite and now it appears to have killed my network card config.

Ie i cant even ping my router anymore, I've had to boot into windows just to post this.
I've tried removing eth0 and reinstalling it... still nothing.
Why is it always so frustrating?!

I've no idea where to even start with that one, other than scrapping the install and starting from scratch.
Old 04-22-2004, 02:09 AM   #3
LQ Newbie
Registered: Apr 2004
Distribution: Mandrake 10
Posts: 23

Original Poster
Rep: Reputation: 15
bit of a shameless bump since I'm not getting anywhere alone.
Old 05-28-2004, 05:22 PM   #4
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Registered: May 2004
Location: Austin, TX
Distribution: Mandrake 10
Posts: 10

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I'm running into the same issue. I use Linux at home to connect to my Microsoft VPN at work, and after converting to Mandrake 10 (commercial version), I'm trying to get my VPN working again.

I find that I can execute

modprobe ppp_mppe

with no trouble. I've followed the instructions on the pptp client page (, and am getting the same error I see in your output:

Couldn't set pass-filter in kernel: Invalid argument

Does anyone know what this error means? The output seems to negotiate a successful chap secret with the server, then I get this error, and the connection is terminated.


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