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I'm trying to setup a VPN connection on OpenSUSE Leap 42.2, with the following command:

me@linux-box:~> sudo pptpsetup --create TUNNEL --server 172.16.100.2 --username 444182 --password 255553 --start

But I'm receiving the following error message:

Using interface ppp0
Connect: ppp0 <--> /dev/pts/5
anon warn[open_inetsock:pptp_callmgr.c:329]: connect: Connection refused
anon fatal[callmgr_main:pptp_callmgr.c:127]: Could not open control connection to 172.16.100.2
anon fatal[open_callmgr:pptp.c:479]: Call manager exited with error 256
Script pptp 172.16.100.2 --nolaunchpppd finished (pid 17988), status = 0x1
Modem hangup
Connection terminated.

Also, when trying to start the VPN with:

pppd call TUNNEL debug nodetach

I receive the same error message. Also, when I turn off my firewall, I receive the same error message. I wonder if anybody knows how to resolve it.

closed as off-topic by Jeff Schaller, Rui F Ribeiro, Anthon, Thomas Dickey, ilkkachu Jun 19 '17 at 9:08

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions describing a problem that can't be reproduced and seemingly went away on its own (or went away when a typo was fixed) are off-topic as they are unlikely to help future readers." – Jeff Schaller, Rui F Ribeiro, Thomas Dickey, ilkkachu
If this question can be reworded to fit the rules in the help center, please edit the question.

  • support for PPPT servers is being discontinued in a lot of operating systems – Rui F Ribeiro Jun 13 '17 at 11:23
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Actually, I realized that the PPTP was disabled on MikroTik v6.25, i.e. IP address 172.16.100.2, that's why I couldn't connect to the VPN server.

After enabling the PPTP on MikroTik, I'm able to connect to the server like this:

me@linux-box:~> sudo pppd call TUNNEL debug nodetach
using channel 15
Using interface ppp0
Connect: ppp0 <--> /dev/pts/5
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xa905bd9b> <pcomp> <accomp>]

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