Hello all ! 
I've got a server withfreebsd FreeBSD 8.3. I've installed openVPN on this, and that works perfectly. Now I'm seeking software which can allow or refuse connections on the VPN network. For example, a computer without anti-virus can't connect to my VPN.
Can someone help me to find the software that can do that?
Thanks in advance.

I've got a server with
Can someone help me to find the software that can do that?
Thanks in advance.