wireless access point in FreeBSD 8.2p2

Paul Beard paulbeard at gmail.com
Sat Aug 27 16:44:44 UTC 2011

I seem to be missing something, possibly from reading too many HOWTOs. What I am trying to do is get a system with a wireless card to stand in as a wireless AP should my aging LinkSys base station develop a tragic smoke leak. 

It's an ath0-based card and the following steps suggest it should work (it has HOSTAP capabilities and offering robust encryption). 

ifconfig wlan0 create wlandev ath0
ifconfig wlan0 list caps

But various permutations of rc.conf, hostap.conf and many iterations of /etc/rc.c/netif restart leave me with two ifconfig entries, one of the ath0 interface and one for wlan0. None of the examples show this so I suspect it's wrong. The IP address is pingable from the host it's installed in but not from anywhere else. And I can see the AP from another system and attach to it but it doesn't route any traffic. 

from /etc/rc.conf: 
create_args_wlan0="wlanmode hostap"
ifconfig_wlan0="inet netmask ssid lower mode 11g channel 8"

from hostap.conf: 

redacted results of ifconfig: 
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
	ether 00:0d:88:93:21:3a
	media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
	status: running

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	ether 00:0d:88:93:21:3a
	inet netmask 0xffffff00 broadcast
	inet6 fe80::20d:88ff:fe93:213a%wlan0 prefixlen 64 scopeid 0x7 
	media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
	status: running
	ssid lower channel 8 (2447 MHz 11g) bssid 00:0d:88:93:21:3a
	regdomain FCC indoor ecm authmode AUTO privacy OFF txpower 27
	scanvalid 60 protmode CTS wme burst dtimperiod 1 -dfs

Yes, I am trying it without any encryption until I see some packets being passed. 

It seems like a lot of people are getting this to work but I'm not able to follow how they did it. 
Paul Beard

Are you trying to win an argument or solve a problem? 

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