How can we make sure that our WLAN traffic is useless for all unauthorized listeners? From the OSI layer 3 point of view, 802.11 is not different than any other LAN technique (ethernet, token ring..). This makes it possible to use standard solutions for securing IP traffic.
This document describes an implementation of 802.11 wireless LAN access point and VPN gateway using the OpenBSD operating system and how to secure the WLAN traffic with IPsec. We are going to utilize many of the hot Internet buzzwords