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Re: pptp-based vpn I am trying to setup pptpd to initiate a connection to



On Mon, Aug 03, 2015 at 08:29:31PM -0500, martin McCormick wrote:
> ukvpn.ufreevpn.com and I have never seen this work before so I am
> not sure what a working setup behaves like. It appears that it
> takes a sort of grand tour in which it makes 7 or 8 attempts at
> connecting but it ultimately gives up.
> 
> 	One should run the following command to test:
> 
> pon ufreevpn debug dump logfd 2 nodetach
> 
> pppd options in effect:
> debug		# (from command line)
> nodetach		# (from command line)
> persist		# (from /etc/ppp/peers/ufreevpn)
> logfd 2		# (from command line)
> dump		# (from command line)
> noauth		# (from /etc/ppp/peers/ufreevpn)
> remotename ukvpn.ufreevpn.com		# (from /etc/ppp/peers/ufreevpn)
> 		# (from /etc/ppp/peers/ufreevpn)
> pty pptp ukvpn.ufreevpn.com --nolaunchpppd		# (from /etc/ppp/peers/ufreevpn)
> lcp-echo-failure 4		# (from /etc/ppp/options)
> lcp-echo-interval 30		# (from /etc/ppp/options)
> hide-password		# (from /etc/ppp/options)
> ipparam ukvpn.ufreevpn.com		# (from /etc/ppp/peers/ufreevpn)
> defaultroute		# (from /etc/ppp/peers/ufreevpn)
> usepeerdns		# (from /etc/ppp/peers/ufreevpn)
> nobsdcomp		# (from /etc/ppp/peers/ufreevpn)
> nodeflate		# (from /etc/ppp/peers/ufreevpn)
> require-mppe-128		# (from /etc/ppp/peers/ufreevpn)
> noipx		# (from /etc/ppp/options)
> using channel 69
> Using interface ppp0
> Connect: ppp0 <--> /dev/pts/2
> sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x71258109> <pcomp> <accomp>]
> rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x6ade22e2> <pcomp> <accomp>]
> No auth is possible
> sent [LCP ConfRej id=0x1 <auth chap MS-v2>]
> sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x71258109> <pcomp> <accomp>]
> rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x71258109> <pcomp> <accomp>]
> rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0x6ade22e2> <pcomp> <accomp>]
> sent [LCP ConfAck id=0x2 <asyncmap 0x0> <magic 0x6ade22e2> <pcomp> <accomp>]
> sent [LCP EchoReq id=0x0 magic=0x71258109]
> MPPE required, but MS-CHAP[v2] auth not performed.
> sent [LCP TermReq id=0x2 "MPPE required but not available"]

If I'm reading this correctly, you've stated that the connection must
use MPPE (because of the 'require-mppe-128' command in
/etc/ppp/peers/ufreevpn), but the remote end has replied that MPPE is
not available. Because of this, pppd terminated the connection.

I would suggest confirming the settings with your VPN provider.
Either you don't need MPPE, or they need to turn on support for it at
their end.

> rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x71258109> <pcomp> <accomp>]
> rcvd [LCP TermReq id=0x3 "peer refused to authenticate"]
> sent [LCP TermAck id=0x3]
> rcvd [LCP TermAck id=0x2]
> Connection terminated.
> using channel 70
> 
> 	It repeats this routine through 7 more channels. What
> does one see when it works?
> 
> Thank you.
> 
> Martin McCormick
> 
> 
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