Hi Alex,
Just trying to be bit more clear, I'm want that hostapd is sending SSID out
to
"everybody willing to listen" - so I do not want to hide or eliminate it.
I can patch and compile Hostapd if there is any trick to make it happen.
From the hostapd.conf point of view, I began to wonder if broadcasting of
SSID is the option not available in Hostapd?
Regards
Pertti N
-----Alkuperäinen viesti-----
From: Pertti Niinimäki
Sent: Tuesday, November 17, 2015 9:38 PM
To: Alexandre Epert
Cc: hostap@xxxxxxxxxxxxxxxxxxx
Subject: Re: Hostapd AP SSID broadcast problem
Hi Alex,
Thanks for your comments. Yes I have only one wireless camera at the moment.
Remote location
(my cottage) is about 100 km away, so that I'm currently operating
everything from my home location.
As you suggested I tested hostapd.conf commenting out
"ignore_broadcast_ssid" but it didn't
change the broadcast behaviour.
Some other things I found from debug data using "-d" argument. Debug records
are showing
beacon hex data and voila, SSID is correctly inserted in.
The problem seems to be that this specific beacon data is not sent out. Only
records AP is sending
out are identified as ARP queries not containing SSID.
When I'm comparing that with trace from ZyXEL ADSL router, it is
transmitting ARP queries and also
identified as 802.11 records which contain AP's SSID identification.
I'm not fully sure if my IPS camera is waking up when it sees correct Access
Point, but that's what
I still believe.
For my remote operations I have ZyXEL ADSL-router with Wifi option, two
Raspberry Pi's as
LAN network, other one having internet connection with WWAN mobile stick.
If something is down I can use backup routes.
Regards
Pertti N
-----Alkuperäinen viesti-----
From: Alexandre Epert
Sent: Tuesday, November 17, 2015 5:13 PM
To: Pertti Niinimäki
Cc: hostap@xxxxxxxxxxxxxxxxxxx
Subject: Re: Hostapd AP SSID broadcast problem
Hi,
If I understand you have 1 camera which is not working when you try to
hide SSID.
Have you tried your conf without "ignore_broadcast_ssid" option?
Do you have this problem with 1 equipment or more?
I use this hostapd.conf file :
interface=wlan0
bridge=br0
#hw_mode=g
channel=6
ieee80211d=1
country_code=FR
ieee80211n=1
#ieee80211ac=1
wmm_enabled=1
ignore_broadcast_ssid=0
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ssid=Whatever
I can hide SSID if need to with that configuration file.
Regards,
Alex
2015-11-17 10:08 GMT+01:00 Pertti Niinimäki <itprosenior@xxxxxxxxx>:
Hi
Based on WireShark analysis, I have not been able to configure Hostapd to
broadcast SSID. My problem
is ‘sleeping’ remote IP security camera connected via Wifi to Raspberry
Pi.
Only ARP records are sent
out periodically or when pinging the bridged static IP address for the
camera, but no SSID broadcasting.
Wifi is in its own subnet bridged (br0) to Raspberry and mobile PPP0
interface.
In the same installation but nor directly connected the SSID from ZyXEL
ADSL modem can be listened correctly
with Raspberry's WireShark.
I compiled latest version (hostapd v2.3) into Raspberry, replacing v1.0,
but it didn’t change anything.
Testing hostapd.conf setup for “ignore_broadcast_ssid” with different
values was no help either
for the problem.
Looking into source code, it seems like value “1” should do the trick to
beacon ssid, but no success?
Following are config parameters used:
interface_wlan0
bridge=br0
driver=nl80211
hw_mode=g
channel=8
ssid=XxXxXX (not shown)
beacon_int=100 (ok with hostapd > 15)
dtim_period=2
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=(0 or 1 or 2 or 3 tested)
wpa=2
wpa_passphrase=xxxxxxxxxx(not shown)
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
country_code=FI
wpa_ptk_rekey=18000
radius_acct_interim_interval=36000 (not needed extra ?)
The driver is: rt2800usb
Normally the the link Wifi-IPS camera works ok, but probably due to some
disturbance the camera
may be dropped out. I want to test if broadcasting AP SSID could wake it
up.
Pertti Niinimäki
itprosenior@xxxxxxxxx
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