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vpn connetion fails on lenny

Link to this post 05 Aug 10

Hi all

I'm using debian lenny and I've created a vpn connection (client) to connect to a windows vpn server , my chap-secrets file looks like the following :


# Secrets for authentication using CHAP
# client server secret IP addresses

........

# added by pptpsetup for afa
afa afa "my_pass" *

and my settings for 'afa' vpn connection are :


# written by pptpsetup
pty "pptp 212.50.246.113 --nolaunchpppd"
lock
noauth
nobsdcomp
nodeflate
name afa
remotename afa
file /etc/ppp/options.pptp
require-mppe-128
ipparam afa

options.pptp file looks like this :


# Lock the port
lock

# Authentication
# We don't need the tunnel server to authenticate itself
noauth

# We won't do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2
# (you may need to remove these refusals if the server is not using MPPE)
refuse-pap
refuse-eap
#refuse-chap
#refuse-mschap

# Compression
# Turn off compression protocols we know won't be used
nobsdcomp
nodeflate

# Encryption
# (There have been multiple versions of PPP with encryption support,
# choose with of the following sections you will use. Note that MPPE
# requires the use of MSCHAP-V2 during authentication)

# http://ppp.samba.org/ the PPP project version of PPP by Paul Mackarras
# ppp-2.4.2 or later with MPPE only, kernel module ppp_mppe.o
# {{{
# Require MPPE 128-bit encryption
require-mppe-128
# }}}

# http://polbox.com/h/hs001/ fork from PPP project by Jan Dubiec
# ppp-2.4.2 or later with MPPE and MPPC, kernel module ppp_mppe_mppc.o
# {{{
# Require MPPE 128-bit encryption
#mppe required,stateless
# }}}

when I try to connect using "pppd debug call afa" , I get this log and debug messages :

log message :


Aug 2 13:12:38 debian pppd[3738]: pppd 2.4.4 started by root, uid 0
Aug 2 13:12:38 debian pppd[3738]: Using interface ppp0
Aug 2 13:12:38 debian pppd[3738]: Connect: ppp0 <--> /dev/pts/2
Aug 2 13:12:42 debian pppd[3738]: Connection terminated.
Aug 2 13:12:42 debian pppd[3738]: Exit.

debug messages :


Aug 2 13:12:38 debian pppd[3738]: using channel 9
Aug 2 13:12:39 debian pppd[3738]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xc6fd0420> <pcomp> <accomp>]
Aug 2 13:12:41 debian pppd[3738]: rcvd [LCP ConfReq id=0x1 <auth chap MS> <magic 0x6ea06883>]
Aug 2 13:12:41 debian pppd[3738]: sent [LCP ConfAck id=0x1 <auth chap MS> <magic 0x6ea06883>]
Aug 2 13:12:42 debian pppd[3738]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xc6fd0420> <pcomp> <accomp>]
Aug 2 13:12:42 debian pppd[3738]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xc6fd0420> <pcomp> <accomp>]
Aug 2 13:12:42 debian pppd[3738]: sent [LCP EchoReq id=0x0 magic=0xc6fd0420]
Aug 2 13:12:42 debian pppd[3738]: rcvd [CHAP Challenge id=0x1 <3eb940ce0821ce16>, name = "22Bahman-RT2811-2"]
Aug 2 13:12:42 debian pppd[3738]: sent [CHAP Response id=0x1 <0000000000000000000000000000000000000000000000000d74bc9d2117858ef3e47517ee06f75f28267b01a8cafc1601>, name = "afa"]
Aug 2 13:12:42 debian pppd[3738]: rcvd [LCP EchoRep id=0x0 magic=0x6ea06883]
Aug 2 13:12:42 debian pppd[3738]: rcvd [CHAP Failure id=0x1 "E=691 R=0"]
Aug 2 13:12:42 debian pppd[3738]: sent [LCP TermReq id=0x2 "Failed to authenticate ourselves to peer"]
Aug 2 13:12:42 debian pppd[3738]: rcvd [LCP TermReq id=0x2]
Aug 2 13:12:42 debian pppd[3738]: sent [LCP TermAck id=0x2]
Aug 2 13:12:42 debian pppd[3738]: rcvd [LCP TermAck id=0x2]
Aug 2 13:12:42 debian pppd[3738]: Script pptp 212.50.246.113 --nolaunchpppd finished (pid 3739), status = 0x0

thanks in advance for your help

Link to this post 06 Aug 10

Were you able to connect to the server in the past with this configuration file?
Have you verified that the authentication mechanisms in use are properly configured on your system?

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