I have the following setup:

OS: Ubuntu v13
Software: PPTP

NIC 1 (eth1)
(this is the network I want to connect to)

NIC 2 (eth2)
(the network I want to connect from)

PPTP is set to
local IP:
remote IP range: to 219


iptables -A FORWARD -p tcp --syn -s -j TCPMSS --set-mss 1356
iptables -t nat -A POSTROUTING -s -o eth1 -j MASQUERADE

What I want to achieve

  1. Connect using PPTP from Windows 8.1 and take IP (DONE!)
  2. Access computers that are base (DONE!)
  3. Forward all UDP traffic to the network I am connecting from (I don't know how to do it)

There is a game server on that network that I want to access. When I scan for it from the game lobby in the same network, I can see it, but when I scan from behind the VPN, I can't see it, although I can ping the IP and access the computer itself (remote desktop).

I guessed that the problem is with UDP forwarding.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.