Re: [pptp-devel] LCP: timeout sending Config-Requests

[lar3ry g. <la...@ti...>]

On 29-Apr-2002 06:49 pm James Cameron wrote:

> > but find no discussion on the stuff that I'm seeing:
> > sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0x64547345> <pcomp> <accomp>]
> > rcvd [LCP ConfReq id=0x0 <auth chap 81> <magic 0x5221385d> <pcomp> <accomp> < 0d 03 06> <mrru 1614> <endpoint [local:99.13.a3.86.c0.68.40.f2.b4.bc.1e.ff.b8.fd.f3.c3.00.00.00.00]> < 17 04 6f 6d>]
> > sent [LCP ConfRej id=0x0 <auth chap 81> < 0d 03 06> <mrru 1614> < 17 04 6f 6d>]
> 
> Rejected MSCHAP81 authentication.
> It is in the diagnosis HOWTO ...
> 
> http://pptpclient.sourceforge.net/howto-diagnosis.phtml#lcp_confrej_authchap81
> 
> The rest of the log is just the wind-up.
> 
> If you have only changed the kernel, it is likely to be missing MPPE,
> and so solution 1 applies.  Solution 2 is unlikely to be the fix, but it
> is probably worth trying that.  What are the results of the MPPE tests
> in the fault tree?

OK.  I managed to get myself REALLY lost.  But managed to get PPTP working
again.  This was a real strange trip.

I tried loading a "newer" ppp (ppp- ppp-2.4.1-3mppe.i386.rpm), and got
a lot of false leads.  Various error messages, including:

    kernel: failed to gegister PPP device (-16)
    pppd[xxxx]: Couldn't attach to channel 1: No such device or address

and, in other configurations, error messages about not finding a
suitable secret (password) to use.


Finally, I dropped down to the stable versions:  

    pptp-linux-1.0.3-1.i386.rpm
    ppp-mppe-2.4.0-4.i386.rpm

After a lot of cleaning out of files in /etc/ppp/* and reworking the
lines in /etc/modules.conf according to README.linux (somehow,
something put in "alias char-major-108 off" with a comment about 2.3
kernels!), and then some twiddling with modprobe, I finally got a
connection to my work system!

I *think* the last magic line(s) I did was in /etc/modules.conf:

    alias ppp-compress-18 	mppe
    alias ppp_mppe		mppe

(I know I put in the last one; the other one may have been installed
by one of the pp*.rpm packages.)

I also saw this warning when ppp_mppe (AKA mppe) loaded:

    Warning: loading /lib/modules/2.4.9-31/misc/mppe.o will taint the
    kernel: no license

(Is there a way to prevent that?)

Anyway, the next "pptp-command start" worked and I got a connection!
I didn't rmmod mppe, so I may still have problems with the MPPE module
being auto-loaded, but at least I have something that is starting to
work.

I'm sorry that I can't be more specific about what magical
incantation(s) worked, but comments from you and Chris Tooley both
helped me zero in on the problem.  I'm back up and running.

Thanks!

-- 
lar3ry gensch                                                 la...@ti...

     "As God is my witness, I thought turkeys could fly" - Arthur Carlson