AirPort Extreme Base Station and VPN over PPTP

Standard

Updated 06/17/2011: Before you get too far into this post I wanted to point out that I didn’t find a solution to getting a PPTP VPN connection to work with my AirPort Extreme Base Station. I switched over to using L2TP instead.

Updated: 08/03/2011: I’m moving to a different solution to bring PPTP back to my network setup, but you won’t like it. The step I’ve taken illustrates how inconvenient this problem can be.

Overall, I really like the new Airport Extreme Base Station that I purchased recently. The only problem I’ve had, and unfortunately it’s a major problem, is a loss of the ability to connect back into my network remotely over PPTP  via Windows 7 (I prefer to connect to my VPN when staying in a hotel).  I forwarded the appropriate ports but I was only able to use my network for about 20 seconds at a time. After that time was up I could no longer do anything on the network and the connection would usually close within a minute or two.

Unfortunately, I haven’t been able to find a true solution to this problem but I did find an acceptable work-around. I suspect this is a problem with the Extreme not properly passing the PPTP connection, though I don’t know for certain.

I started looking at using other VPN servers. Previously, I just had Windows 7 configured to accept VPN connections. I tried OpenVPN via a VMWare appliance in Fusion, but aside from configuration issues the larger problem was that I could not connect to the VPN using my iPhone or iPad.

My solution, which seems to have worked, was to purchase a copy of MacServe’s iVPN and move the VPN handling directly into OS X. Cost in USD was around $25. It hooks into existing OS X software but provides a simple GUI for management. This option turned out to be very easy to manage and works with all of my devices. Rather than using PPTP I moved over to L2TP.

On the Airport Extreme I setup three UDP ports to forward to a specific system within my network: 500, 1701, 4500

Currently, it sounds like OS X Lion may include similar capabilities, but I simply could not wait until the release of Lion.

7 thoughts on “AirPort Extreme Base Station and VPN over PPTP

  1. D.A.R.Y.L.

    Hey, just read this and noticed you were talking about the PPTP passthrough issues through the router. I recently investigated PPTP passthrough to find exactly how it works and why it causes problems with routers. Take a look at it, you may find how to solve it yourself after reading it.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s