Release notes and handbook changes for identifying wireless adapters

[Lars Engels]

On Tue, Aug 02, 2016 at 07:31:34AM +0200, Lars Engels wrote:
> On Tue, Aug 02, 2016 at 07:02:05AM +0800, Ben Woods wrote:
> > Hi,
> > 
> > FreeBSD wireless users who are upgrading to FreeBSD 11.0 will likely get a
> > surprise when they try and identify which wireless adapters are available
> > in their computer by using ifconfig. Neither the FreeBSD 11 release notes
> > or the FreeBSD handbook currently explain this change.
> > 
> > For example, if you have an atheros wireless driver, you would
> > previously be able to see it using ifconfig, even before configuring the
> > wlan0 clone device.
> > 
> > % ifconfig | grep -B3 -i wireless
> > 
> > 
> > That was changed with commit r287197:
> > https://svnweb.freebsd.org/base?view=revision&revision=287197
> > 
> > The new way to show which wireless adapter is available is:
> > % sysctl net.wlan.devices
> > 
> > Whilst the configuration in /etc/rc.conf required to activate a wireless
> > adapter has not changed, people may run into the hurdle of not even finding
> > which wireless adapter to configure in the first place. This can be seen
> > here:
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203271
> > 
> 
> rc.conf behaviour has changed in regard of creating lagg interaces.
> 
> 10.x needs this (copied from the handbook [1]):
> 
> ifconfig_bge0="up"
> ifconfig_iwn0="ether 00:21:70:da:ae:37"
> wlans_iwn0="wlan0"
> ifconfig_wlan0="WPA"
> cloned_interfaces="lagg0"
> ifconfig_lagg0="laggproto failover laggport bge0 laggport wlan0 DHCP"
> 
> 
> 11.x needs this:
> 
> ifconfig_bge0="up"
> wlans_iwn0="wlan0"
> create_args_wlan0="ether 00:21:70:da:ae:37" # new

Small correction:


create_args_wlan0="wlanaddr 00:21:70:da:ae:37"
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