Good day .

I maintain a small wiresless ISP network running mostly Mikrotik.

Everything is controlled centrally via radius and hotspot. Everything works well most of the times.

We now have a remote site, but it is not connected to our network. The internet there is provided by another provider. i would like to manage these clients the same way i manage the ones that are connected directly to my network.

i was thinking that this could be done via a VPN link or some proxy setup.

the proxy setup would just check with the radius before letting them on the net. i would like to know if this possible and how can this be done.

Thanks

http://wiki.mikrotik.com/wiki/Category:VPN
Pick a VPN type, the wiki has lots of example configuration. Build a VPN tunnel between the two networks.
Then set up the same Hotspot/RADIUS configuration at the remote site, and reach the RADIUS server via the VPN tunnel. At that point everything works the same.