I am looking to implement a point to multipoint wireless bridge network. Security is of high importance and I am looking at ways of providing security to 802.11b. Is IPSec the way forward or should I be looking at 802.1x LEAP as a viable alternative. If IPSec how should I bring the remote sites in to the VPN (assuming I use a VPN Concentrator on the main site). Should I use another VPN Concentrator or is client software the best practise. Any advice on this subject would be great.