managing access points with an access controller from another city
I am trying to set up a demo project and having a problem in one of the basic steps.
Here is my set-up
To achieve the desired function in the shown topology, what options do I have?
1. I think a VPN connection between the two DSL modems can resolve the situation. If this is true, what modem should I use to establish a site to site vpn? (cannot afford router devices, it is why I want to use ADSL modem to achieve this)
2. I feel I need to use some type of Point to Point connection between the two system but how is that possible? Since there is no leased line, hdlc or framerealay here (only internet) what can I do?
3. IF I put the AP and AC as DMZ devices in each modem, can they communicate between each other with the real ip numbers? (I am unsure about it)
I am really in need of some comments here.
Thanks in advance.