Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I installed an L2TP VPN network on an iMac using OS X Lion Server app. It works fine in testing when I use my wireless access on the network (accessing the external IP address), but am unable to access from other WiFi networks. What did I miss?

share|improve this question
Did you open any ports on your router so that VPN could go through? – Alan Shutko Oct 17 '12 at 15:16
I'm a bit confused. You can access the computers in the VPN from your network, but you can't access the computers in the network from a computer connected through VPN, is that it? – Radoo Oct 17 '12 at 16:25

Double check your port forwarding on your firewall/Router. Ports 500, 1701, 1723, and 4500 should all be pointed at your server. All are UDP except 1723 which is TCP. Since the VPN connects from inside the network, the ports forwarding is almost certainly the problem.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.