Point-to-point without PPPoe

[Fabio Almeida]

Hi,

Is it possible to configure a point-to-point similar connection without 
using PPPoe protocol, /30 netmask or VPN?

I need to autenticate around 1.000 wireless customers, for this I'll be 
using authpf, but there's a need to isolate each customer in a way that 
each client PC can't "see" each other, but only directly communicates 
with the Firewall, like a ppp connection.

Any advice will be appreciated :)

Thanks in advance,
Fabio Almeida