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I am trying to connect my Linux virtual machine(VM) to my corporate VPN via Google Compute Engine. I can make this work on my own Ubuntu computer following this tutorial:

https://help.ubuntu.com/community/VPNClient#PPTP

I do the same steps on my cloud compute engine VM but when I run it, it gives me the error in SSH:

mats@instance-1:~$ sudo pon eurvpn nodetach

Using interface ppp0

Connect: ppp0 <--> /dev/pts/2

Modem hangup

Connection terminated.

May it have something to do with the firewall settings? On the website of my company it says:

Client ports: 1024-65535/TCP

Server port: 1723/TCP

Protocol: PPTP

Allow: IP PROTOCOL 47 (GRE)

And of course I have the gateway, my username and password.
What should I change to my Firewall settings or is there another issue? Help is greatly appreciated!

Kind regards,

Mats

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  • Try opening ports 1723 and 47 (TCP) and give it another go. Also read this
    – Alin Andrei
    Apr 11, 2016 at 6:38
  • Were you ever able to resolve this issue? If so please consider posting a self-answer so the community can benefit.
    – Faizan
    Dec 30, 2016 at 20:10

1 Answer 1

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It might has something to do with port forwading, give this tutorial a try.

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