configuring an L2TP VPN connection to VPN server on my NAS

[njitgrad]

On my S4 I am trying to configure an L2TP VPN connection to the VPN Server hosted on my Synology DS214 NAS.

When I enter the actual WAN IP address on my network into my configuration settings it works (the router forwards the request to the NAS which has a static IP address). When I attempt to use the DDNS server that my NAS is registered with (myusername.synology.me) the VPN connection fails to be made.

Am I missing something?

When I want to access the GUI on my NAS from outside my home network I enter myusername.synology.me:5000 in my browser and I can manage my NAS as if I were home. Do I have to explicitly specify a port name in my VPN connection? I've tried the three ports that I need to open on my router but it did not work.

 

[Rukbat]

When I enter the actual WAN IP address on my network into my configuration settings it works (the router forwards the request to the NAS which has a static IP address). When I attempt to use the DDNS server that my NAS is registered with (myusername.synology.me) the VPN connection fails to be made.

Am I missing something?

If your router doesn't do loopback, it won't work. You're going out, then back in. Some routers won't do that.