This uses the new VAP interface setup that comes with FreeBSD 8.0 and newer.

1. # vi /etc/rc.conf
2. --- snip --- snip ---
3. wlans_ath0="wlan0"
4. ifconfig_wlan0="WPA DHCP"

1. # vi /etc/wpa_supplicant.conf
2. network={
3.     ssid="ssid_goes_here"
4.     key_mgmt=WPA-PSK
5.     psk="password_here"
6. }

1. # /etc/rc.d/netif restart

Wait a few seconds for your wireless card to associate with the wireless device and see (1) if you are associated and (2) that you have an IP address.

1. # ifconfig wlan0

If you have multiple access points around and want a certain one over the other, add priority=1 (you change number), to the host's block in /etc/wpa_supplicant.conf. The lower the number, the higher the priority.

Test IP connectivity to the public Internet.

1. # ping 4.2.2.1

Test DNS resolution against a public hostname.

1. # cat /etc/resolv.conf
2. -- list of nameservers from DHCP lease --
3. # ping www.google.com

If you happen to not have anything there, you can try using the 4.2.2.1 and 4.2.2.2 nameservers.

1. # vi /etc/resolv.conf
2. nameserver 4.2.2.1
3. nameserver 4.2.2.2

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