two AP on one device

[Greg Oliver]

On Fri, Mar 1, 2013 at 10:40 AM, snowy.mail at gmx.net <snowy.mail at gmx.net> wrote:
> Hi Martin,
>
> thank you for your reply.
>
> Am 01.03.2013 01:33, schrieb Martin:
>> either remove wlan0 from auto lo eth0....
>
> unfortunately, this does not change the behavior.
>
>
> I switched off ifplugd for wlan0; then hostapd creates wlan0, changes
> its mac according to the given bssid and creates the AP.
> However, if I try to add a second ssid (just bss and ssid, no further
> entries in hostapd.conf), I get the same errors again for the second AP:
>
> nl80211: Create interface iftype 3 (AP)
> nl80211: New interface wlan0:0 created: ifindex=3
> nl80211: Add own interface ifindex 3
> Could not set interface wlan0:0 hwaddr: Device or resource busy
> nl80211: Remove interface ifindex=3
> Failed to add BSS (BSSID=fa:XX:XX:XX:XX:41)
> wlan0: Unable to setup interface.
>
>
> It seems to me that hostapd is successful in creating wlan0:0, however,
> wlan0 is already busy, and therefore the max of wlan:0 can not be set.
> Is my assumption correct? And is there some way to solve that problem?
>
>
>> AFAIK the MAC address of the first interface must end with "0". You do not need
>
> That's why I'm trying to set the mac/bssid.
>
>> to specify it in hostapd.conf, its incremented automatically for every
>> subsequent interface. Also make sure your hostapd is at least version 0.7.3
>
> It's 1.0

Relevant sections that work for my AP with 4 SSIDs per card on debian:

interfaces:

auto wlan0
iface wlan0 inet manual
    pre-up iw dev wlan0 set type __ap
    up hostapd -B -t -P /var/run/hostapd-wlan0.pid
/etc/hostapd/hostapd-wlan0.conf

hostapd-wlan0.conf:

bss=wlan2_0
bssid=00:0c:42:64:b3:e7
ssid=GREG-LAB
bridge=br-LAB
wpa=2
wpa_pairwise=CCMP
wpa_passphrase=xxxxx
ignore_broadcast_ssid=1
ctrl_interface=/var/run/hostapd-wlan2
dump_file=/tmp/hostapd-wlan2_0.dump


bss=wlan2_1
bssid=00:0c:42:64:b3:e8
ssid=GREG-GAME
bridge=br-GAME
wpa=2
wpa_pairwise=CCMP
wpa_passphrase=xxxxx
ctrl_interface=/var/run/hostapd-wlan2
dump_file=/tmp/hostapd-wlan2_1.dump

bss=wlan2_2
bssid=00:0c:42:64:b3:f0
ssid=GREG-BULLET
bridge=br-BULLET
wpa=2
wpa_pairwise=CCMP
wpa_passphrase=xxxxx
ctrl_interface=/var/run/hostapd-wlan2
dump_file=/tmp/hostapd-wlan2_2.dump