I need some advice about encrypt all traffic on a small private network running wi-fi and LAN traffic on 192.168.0.x network. The network would comprise of client laptops connecting to the wi-fi router (192.168.0.254) via ethernet connection or wireless. The main purpose of the server is for the client laptops to talk to two servers on different IP's (192.168.0.200 and 192.168.0.201) on ports 80 and 433.
My main concern is having packet sniffers and what not getting access to the data.
The only ways I see at the moment is to have VPN running on the network or use IPSec policy's to do this.
Any other ways guys?