hostapd is a user space daemon for access point and authentication
servers. It implements IEEE 802.11 access point management, IEEE
802.1X/WPA/WPA2/EAP Authenticators, RADIUS client, EAP server, and
RADIUS authentication server. The current version supports Linux
(Host AP, madwifi, mac80211-based drivers) and FreeBSD (net80211).

To use the ports version instead of the base, add:

    hostapd_program="/usr/local/sbin/hostapd"

to /etc/rc.conf

WWW: http://hostap.epitest.fi/hostapd/