VPN Termination

Hi
I want to add VPN to my network.
Ideally I'm looking for a simple, low cost device that will work with my BE box and will allow VPN clients to terminate onto it.

I don't want to use a windows server.

Ideally the client should work in Windows, Linux & Android.

Any ideas ?
Thanks

How about some custom firmware running on a cheap router (Tomato, DD-WRT)
Or stepping up a level something like this running on an old PC.

I believe Draytek routers offer this functionality.

Thanks

I'll have a look around for a box to sit behind my BE Box..