No wifi access without wired connection

S

sprock

Hello,

I just got wifi working on my MacPro (11.3-RELEASE) via its BCM4321 card. I can access the machine on the wifi interface via ssh, but only if there is also a wired connection. I have this same behaviour (tested on a different machine) using a D-Link USB wifi card that uses the 'run' driver, so I doubt the problem is with the BCM4321 or the 'bwn' driver.

I appreciate any hints on what might be the problem.

Thanks,
sprock
 
How did you configure your interfaces? Post the relevant parts from rc.conf.
 
Hello,

Code: 
ifconfig_em0="192.168.0.11 netmask 255.255.255.0"
defaultrouter="192.168.0.1"
ifconfig_em0_ipv6="inet6 accept_rtadv"

I started the wlan device like this:

Code: 
sudo ifconfig wlan0 create wlandev bwn0
sudo ifconfig wlan0 up
sudo ifconfig wlan0 scan
sudo wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf

Thanks,
sprock
 
While your wireless may be associated, you're not really connected because you never configure an IP address on your wireless interface.

Code: 
#ifconfig_em0="192.168.0.11 netmask 255.255.255.0"
#defaultrouter="192.168.0.1"
#ifconfig_em0_ipv6="inet6 accept_rtadv"

wlans_bwn0="wlan0"
ifconfig_wlan0="WPA DHCP"

31.3. Wireless Networking
 
Sorry, I missed off
Code: 
sudo dhclient wlan0                                       
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.23 -- renewal in 302400 seconds.
 
Disconnect your wired connection and you'll see it actually works.
 
No. If I boot without the wired connection, or disconnect the wired connection while also logged in via wireless, the wireless connection is dropped. In the latter case, the wired connection is resurrected if I plug in the ethernet cable.
 
That is indeed the problem: I can connect by wireless if the ethernet connection is disabled.

Many thanks for you help (and your patience).
sprock
 
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