Problem with openVPN on DD-WRT router linked as Access Point

[sebsol 0]

Hello,

 

I've been trying many different configurations to try the following :

 

- I have my ISP router with DHCP - IP is 192.168.0.254

- I connect a TP-link router with CPL (equivalent to cable I guess)

- I have DD-WRT on router set up to 192.168.0.252 (DD-WRT v3.0-r27600 std)

- I used the tutorial http://www.dd-wrt.com/wiki/index.php/Wireless_Access_Point

- I try to set up AirVPN on routeur following https://airvpn.org/ddwrt/

- There are some things that don't match between the 2

 

And now I'm lost.

The WAP is working fine but for the VPN, it seems to connect; I can see I'm connected on the AirVPN admin but I have the the following error on the status page :

 

 

What i'm trying to do

- First get the VPN to work only for computers connected to the router

- Even better set up only some computers of the network (with static IP) to connect to the VPN

 

I've seen many different forums, videos, tutos but none that I can easily follow as I don't know enough about iptables and other network stuff.

 

Any help would be greatly appreciated and rewarded with world peace or peanut butter (not both).