Question regarding Single hostapd with Dual radio

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Hi all,

This is the hw setup:

- 2 boards
- each contains 2 identical radio's (qca wave 1)
- each radio is connected to a sector antenna
- the 2 boards use 802.11r with FT-over-DS (roaming)
- each board uses br-wan (bridge) to exchange FT info


Is it possible to only use a single hostapd instance to control both radio's? (AP mode)


According to hostapd help contents, it should be possible:

-i   list of interface names to use


So I tried running:

hostapd -i wlan0,wlan1 /tmp/myconfig.conf


It starts, but only acts on wlan0 interface.

[ Node 4 | node-4 ] hostapd -i wlan0,wlan1 /tmp/roam_cfg_wlan0_br-wan.conf
Configuration file: /tmp/roam_cfg_wlan0_br-wan.conf
wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
ACS: Automatic channel selection started, this may take a bit
wlan0: interface state COUNTRY_UPDATE->ACS
wlan0: ACS-STARTED
wlan0: ACS-COMPLETED freq=5745 channel=149
wlan0: interface state ACS->HT_SCAN
Using interface wlan0 with hwaddr 4c:5e:0c:12:79:38 and ssid "NCENTRIC_ROAM"
wlan0: interface state HT_SCAN->ENABLED
wlan0: AP-ENABLED

... no wlan1


I'm doing the same in another case using wpa_supplicant for IBSS,
and over there it works perfectly to control 4 radio's using a single instance.


Main reasons for asking:

- I'm wondering how instance 1 communicates with instance 2 on the same device as they need to share the bridge interface ..
  Is this possible?

- Lower RAM usage in embedded environments


For reference, here is the config:


driver=nl80211

ssid2="testssid"

hw_mode=a
channel=0
acs_num_scans=5

vht_oper_chwidth=1
ht_capab=[HT40-][HT40+]
vht_capab=[SHORT-GI-80]
ieee80211n=1
ieee80211ac=1

country_code=BE
wmm_enabled=1
wpa=2
wpa_passphrase=mystrongpass
wpa_key_mgmt=FT-PSK
rsn_pairwise=CCMP

bridge=br-wan
mobility_domain=2b67
ft_psk_generate_local=1
ft_over_ds=1
disassoc_low_ack=1
nas_identifier=4C5EC127938


Thanks,

Koen


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