[pptp-server] problems installing mppe patch to PPP

Wed Mar 15 18:38:54 CST 2000

It worked! but no encryption
thanks for all your help. i have applied the patch, recompiled the pppd and
installed it.
Now from a win98 SE i can connect to the pptp server but if i select 'data
encryption' on the client side it gives me an error soemthing like the
'server doesn't support this type of encryption' i will post the exact error
message and number tomorrow. my guess is the encryption is not working or
the client side is not properly configured.
I have got the zip file but haven't gone through that yet.
any ideas about encryption stuff? how exactly do you verify that the data is
encrypted?
once again thanks a lot for all help, past and future.
Jandeep. 

-----Original Message-----
From: Emir Toktar [mailto:toktar at per.com.br]
Sent: Thursday, March 16, 2000 7:23 AM
To: Jandeep Kang
Subject: Re: [pptp-server] problems installing mppe patch to PPP

Can you have send me the log's and config files?  
By the way, do you receive the word file with sript  (not finished yet...)
and it's clear?  Any sugestion.

Bye

Emir Toktar.
Wednesday, 15 March, 2000 09:23 PM

----- Original Message ----- 
From: Jandeep Kang <mailto:jandeep at interspeed.com>  
To: 'Emir  <mailto:toktar at per.com.br> Toktar' 
Sent: Wednesday, 15 March, 2000 3:23 PM
Subject: RE: [pptp-server] problems installing mppe patch to PPP

Well, i have got into trouble before that!
i have a linux machine which i want to use both as a firewall and a VPN
server(with 2 NIC cards in it). when i try to connect to it from outside
using a win 98 SE machine the error it gives me is "the user name/password
is not valid on teh domain" but when i check the logs the problem is that
"input/output error" the "GRE write failure" and teh control connection gets
closed just after that. 
what i am doing wrong??
thanks in advance.

-----Original Message-----
From: Emir Toktar [mailto:toktar at per.com.br]
Sent: Wednesday, March 15, 2000 8:25 AM
To: Jandeep Kang
Subject: Re: [pptp-server] problems installing mppe patch to PPP

Grab the mppe patch from  http://www.moretonbay.com/vpn/releases/
<http://www.moretonbay.com/vpn/releases/>   and choise
<< save target as... >> on the link and save to directory, then applyed the
patch.

"
...
To talk to the new driver, pppd needs to be able to open /dev/ppp,
character device (108,0).  If the special file node /dev/ppp is not
present, pppd will create it.  However, if you are running with /dev
on a read-only filesystem, pppd will not be able to create /dev/ppp.
In that instance you should manually create /dev/ppp using the command
`mknod /dev/ppp c 108 0'.

If you use module autoloading and have PPP as a module, you will need
to add the following to your /etc/modules.conf or /etc/conf.modules:

alias tty-ldisc-3    ppp_async
alias tty-ldisc-14   ppp_synctty
alias char-major-108 ppp_generic
...
"
------------------------------------------------------------------------

I will install this week Red Hat 6.1/updates and ppp-2.3.11 and I will
modify the code ppp_mppe.c to force Data Encryption option on client or
refuse conection it. MPPE_BIT_ENCRYPTED - Bit D set to "1"). A old question
"...to Know is about to refuse any conection different of the ms-chapv2
(with data encryption options set)..."

Other thing, I was out any time and see some old e-mail about <auth 0x80> or
<auth 0x81> and question if was stasteless mode or what....?
The option <auth 0x80> MSCHAP or MSCHAPv1 is enabled by negotiating CHAP
algorithm 0X80 and <auth 0x81> MSCHAPv2 is enabled by negotiating CHAP
algorithm 0X81.

Stateless mode  ('H' bit is set 0x01) indicates that the sender wishes to
negotiate the use of stataless mode, in whith the session key is changed
after the TX fo each packet.

Sorry if this information above is not relevant!
----------------------------------------------------------------------------

If works, reply to me please.

Best Regards

Emir Toktar

----- Original Message ----- 
From: Jandeep Kang <mailto:jandeep at interspeed.com>  
To: 'Emir  <mailto:toktar at per.com.br> Toktar' 
Sent: Tuesday, 14 March, 2000 9:41 PM
Subject: RE: [pptp-server] problems installing mppe patch to PPP

but it has got an extention "gz". i will try just applying the patch.
know anything about 128 bit encryption. where to get it?
Thanks, Jandeep.

-----Original Message-----
From: Emir Toktar [ mailto:toktar at per.com.br <mailto:toktar at per.com.br> ]
Sent: Wednesday, March 15, 2000 7:40 AM
To: Jandeep Kang
Subject: Re: [pptp-server] problems installing mppe patch to PPP

This file is not gzip. Save the file and applied the path -p0< ....

Emir

----- Original Message ----- 
From: Jandeep Kang <mailto:jandeep at interspeed.com>  
To: Pptp Mailing List  <mailto:pptp-server at lists.schulte.org> (E-mail) 
Sent: Tuesday, 14 March, 2000 9:27 PM
Subject: [pptp-server] problems installing mppe patch to PPP

Hello everybody, 
I have been trying to reinstall the pptp so I got ppp 2.3.10 and was trying
to patch it with the mppe patch file from the
<http://www.moretonbay.com/vpn/releases> www.moretonbay.com/vpn/releases

Web site. The problem is whichever way I download the
ppp-2_3_10-openssl-norc4-mppe_patch.gz and when I try to gunzip it, it says
it is not a valid gzip file!?

My guess is downloading via http to a win NT machine is corrupting the
patch. Is it available somewhere else via ftp? How did you solve this
problem?

Secondly, will this give me 40 bit encryption? Where do I get a patch if I
have to do 128 bit encryption? 
Please help. 
Thanks in advance. 

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