From owner-freebsd-wireless@FreeBSD.ORG  Tue Feb 21 15:00:43 2012
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Date: Tue, 21 Feb 2012 07:49:47 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Erich Dollansky <erichfreebsdlist@ovitrap.com>
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Cc: "Dr. James R. Pannozzi D.O.M. LAc." <jimserac@gmail.com>,
	freebsd-wireless@freebsd.org
Subject: Re: Re MAN Page on Wireless Cards
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On Tue, 21 Feb 2012, Erich Dollansky wrote:

> My wpa_supplicant.conf looks like this:
>
> network={
>  ssid="WhaterYoursIs"
>  scan_ssid=1
>  key_mgmt=WPA-PSK
>  psk="a very secret password"
> }
>
> This is really all I needed.

Even this is more than absolutely required.  scan_ssid=1 is only needed 
if "hidden" SSIDs are used.  key_mgmt can usually be left at default.

> This would mean that you have ral as the driver.
>
>> ifconfig_wlan0="WPA SYNCDHCP"
>
> Let us compare:
>
> ifconfig_wlan0="inet 192.168.1.28 netmask 255.255.255.0 ssid WhaterYoursIs WPA"
>
> I think you missed the entry ssid WhaterYoursIs
>
> Are you sure that SYNCDHCP is right?

It is.  SYNCDHCP is the equivalent of setting synchronous_dhclient="YES" 
and using plain DHCP, which is to wait until dhclient has returned 
before continuing startup.  Helpful with wireless because some cards and 
access points take a long time to get a DHCP lease.