HOWTO pptpclient with MS vpn server

The Mad Crapper · Apprentice Joined: 08 Aug 2005 Posts: 156

I can't connect. I have tried to make this work on 3 different Gentoo machines, and i am tired of fighting with it.. Please help!

when i run

saggating · n00b Joined: 11 Apr 2004 Posts: 25

I'm having the exact same problem. I not sure but I was expecting to see an outcoing chapv2 response instead of a <auth eap>.

I'm still digging around at the meoment.
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Havin_it · Posted: Mon Jan 23, 2006 9:49 am Post subject:

Hey guys, not sure exactly what the problem may be, but you might want to try using pptpconfig (a GUI configuration app. for pptpclient) to do your setup. I used it and the connection went up first time.

Also, please note that as of kernel 2.6.15 the MPPE-MPPC patch is included in the kernel, so no patching required. If you have the new kernel and are still patching, that would most likely cause problems.

harryr

I can get the authentication to succeed and get P-T-P tunnel
set up, but there appears to be no traffic possible.

I have no firewall up.

One thing I did not check, I have ppp_mppe_mppc module
available but did not lsmod to see if it was loaded.
Do I need to manually modprobe this module?

I seem to have either a routing problem or encript-decrypt
problem once the tunnel is set up.

P.S. I did try from a WinXP box on the same local LAN and
VPN works. So, I know my home cable and WRT54G boxes
can handle WinXP VPN.

Thanks in advance for any help.

Riekr · n00b Joined: 21 Jun 2002 Posts: 47 Location: Italy

this worked for me: https://forums.gentoo.org/viewtopic-p-3074083-highlight-.html#3074083
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wlchase · Posted: Wed Feb 01, 2006 10:59 pm Post subject:

harryr · Posted: Mon Feb 06, 2006 11:47 pm Post subject:

I followed the instructions given in the link.
The key was: logging said mppe not supported in kernel.

I manually modprobed ppp-mppe and it worked. This causes me
to ask if I needed to manually modprobe ppp-mppe-mppc when
I was running the patched 2.6.14 kernel. If so, why did the patched
kernel *not* complain about mppe not being supported in the kernel?
Hmmmm?
Well, anyway no sense going backward. It works now with 2.6.15.
Thanks again all.

BlakeJob · Tux's lil' helper Joined: 23 May 2004 Posts: 80

I have it setup as the pages state, but I cannot use pptpconfig to do the configuration (I'm running 64bit Gentoo). Anyways the error i get:

Tartan · n00b Joined: 03 Aug 2004 Posts: 8 Location: Littleton, CO

mppe != mppc

Yes, 2.6.15 now has mppe, but that is NOT the full implementation with any real compression.

This is straight out of options.pptp:

unaos · n00b Joined: 06 Apr 2006 Posts: 64 Location: brovary,UA

hello! all is worked fine, but after some time passed connection is breaked up

the tunnel just goes down and that's all.
here is what he says

dustfinger · Guru Joined: 15 Aug 2004 Posts: 449

I almost got my VPN connection up and running, but then all of a sudden debug stopped being outputed to the screen. It happend when I tried adding require-mppe-128 to /etc/ppp/options.pptp. I have tried rebooting and removing the require-mppe-128 flag, but to no avail. When I run pppd with debug I the letters ATZ are outputed on the next line. Once it returns that line (The ATZ line) is cleared.

dustfinger · Guru Joined: 15 Aug 2004 Posts: 449

Havin_it · Posted: Mon May 07, 2007 2:52 pm Post subject:

hkfczrqj · n00b Joined: 14 Dec 2004 Posts: 43 Location: Rochester, MN

I found this blog post about a patch for kernel 2.6.23, so there's hope. I haven't tried it yet. It was written by a fellow gentooist. I wonder why didn't he post it in the forums?

drzap · n00b Joined: 20 Sep 2004 Posts: 23

bfdi533 · Tux's lil' helper Joined: 11 Jun 2003 Posts: 133

drzap · n00b Joined: 20 Sep 2004 Posts: 23

well the patches was just manually merged and the alternations was not meant for this kernel.. i did not read up on what i did it just worked by luck, so there is a quite high probability that there is something wrong with the code.

- gaute

Beetle B. · Guru Joined: 01 Mar 2003 Posts: 524

I got the pptp connection going, but am stumbling on a much simpler problem.

Before pon, here's what route gives me:

drzap · n00b Joined: 20 Sep 2004 Posts: 23

Beetle B. · Guru Joined: 01 Mar 2003 Posts: 524

I don't think that will do it.

How do I check? Should my reported IP on various sites change?

I think the problem with that solution is that all traffic needs to go through my router (192.168.0.1 gateway) before it can get to the Internet. So shouldn't I need to set it so that all traffic first goes through 192.168.0.1 and from there will head to ppp0?

If my question sounds nonsensical, it's because I never figured out networking in Linux. Put another way, how do I guarantee that all network traffic goes through the router (i.e. all network traffic) should then head to the VPN (192.17.144.*)?
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drzap · n00b Joined: 20 Sep 2004 Posts: 23

Beetle B. · Guru Joined: 01 Mar 2003 Posts: 524

Thanks - that cleared it all up.

Turned out I was doing it correctly earlier. The problem was that the IP I was trying to reach was not 192.x. So I put a route command specific to the server I was trying to connect to.
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