Newbie Help Request

Yogesh Powar yogeshp at marvell.com
Tue May 4 01:18:14 EDT 2010


Problem is because of "passive scanning, no IBSS" flags that are set with channel 44. 
Try using CRDA to reset these flags. 

Thanks
Yogesh
________________________________________
From: hostap-bounces at lists.shmoo.com [hostap-bounces at lists.shmoo.com] On Behalf Of Joshua Smith [jesmith at kaon.com]
Sent: Monday, May 03, 2010 10:26 AM
To: hostap at lists.shmoo.com
Subject: Newbie Help Request

Hello!

I'm trying to create a 5GHz (only) 802.11N access point.

My kernel is 2.6.27.8

I have the April 26, 2010 version of compat-wireless

I have libnl-1.1

I have hostapd-0.6.10

I have iw-0.9.19

My wifi device is a Linksys/Cisco WMP600N (PCI) Dual-Band N

When I run hostapd, I get this error:

Configuration file: /etc/hostapd.conf
wlan0: IEEE 802.11 Configured channel (44) not found from the channel list of current mode (2) IEEE 802.11a
wlan0: IEEE 802.11 Hardware does not support configured channel
Could not select hw_mode and channel. (-1)
rmdir[ctrl_interface]: No such file or directory

Here is my /etc/hostapd.conf (comments removed):

interface=wlan0
driver=nl80211
logger_syslog=-1
logger_syslog_level=0
logger_stdout=-1
logger_stdout_level=0
dump_file=/tmp/hostapd.dump
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ssid=Kaon v-OSK
country_code=US
hw_mode=a
channel=44
beacon_int=100
dtim_period=2
max_num_sta=255
rts_threshold=2347
fragm_threshold=2346
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wmm_enabled=1
wmm_ac_bk_cwmin=4
wmm_ac_bk_cwmax=10
wmm_ac_bk_aifs=7
wmm_ac_bk_txop_limit=0
wmm_ac_bk_acm=0
wmm_ac_be_aifs=3
wmm_ac_be_cwmin=4
wmm_ac_be_cwmax=10
wmm_ac_be_txop_limit=0
wmm_ac_be_acm=0
wmm_ac_vi_aifs=2
wmm_ac_vi_cwmin=3
wmm_ac_vi_cwmax=4
wmm_ac_vi_txop_limit=94
wmm_ac_vi_acm=0
wmm_ac_vo_aifs=2
wmm_ac_vo_cwmin=2
wmm_ac_vo_cwmax=3
wmm_ac_vo_txop_limit=47
wmm_ac_vo_acm=0
ieee80211n=1
ht_capab=[HT40+][SMPS-STATIC][GF][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC123][MAX-AMSDU-7935]
eapol_key_index_workaround=0
eap_server=0
own_ip_addr=127.0.0.1

iw list shows:

# iw list
Wiphy phy0
        Band 1:
                Capabilities: 0x3f2
                        HT20/HT40
                        Static SM Power Save
                        RX Greenfield
                        RX HT20 SGI
                        RX HT40 SGI
                        TX STBC
                        RX STBC 3-streams
                        Max AMSDU length: 7935 bytes
                        No DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 2 usec (0x04)
                HT RX MCS rate indexes supported: 0-15, 32
                TX unequal modulation not supported
                HT TX Max spatial streams: 2
                HT TX MCS rate indexes supported may differ
                Frequencies:
                        * 2412 MHz [1] (10.0 dBm)
                        * 2417 MHz [2] (10.0 dBm)
                        * 2422 MHz [3] (10.0 dBm)
                        * 2427 MHz [4] (10.0 dBm)
                        * 2432 MHz [5] (10.0 dBm)
                        * 2437 MHz [6] (10.0 dBm)
                        * 2442 MHz [7] (10.0 dBm)
                        * 2447 MHz [8] (10.0 dBm)
                        * 2452 MHz [9] (10.0 dBm)
                        * 2457 MHz [10] (10.0 dBm)
                        * 2462 MHz [11] (10.0 dBm)
                        * 2467 MHz [12] (10.0 dBm) (passive scanning, no IBSS)
                        * 2472 MHz [13] (11.0 dBm) (passive scanning, no IBSS)
                        * 2484 MHz [14] (11.0 dBm) (passive scanning, no IBSS)
                Bitrates (non-HT):
                        * 1.0 Mbps
                        * 2.0 Mbps (short preamble supported)
                        * 5.5 Mbps (short preamble supported)
                        * 11.0 Mbps (short preamble supported)
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
        Band 2:
                Capabilities: 0x3f2
                        HT20/HT40
                        Static SM Power Save
                        RX Greenfield
                        RX HT20 SGI
                        RX HT40 SGI
                        TX STBC
                        RX STBC 3-streams
                        Max AMSDU length: 7935 bytes
                        No DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 2 usec (0x04)
                HT RX MCS rate indexes supported: 0-15, 32
                TX unequal modulation not supported
                HT TX Max spatial streams: 2
                HT TX MCS rate indexes supported may differ
                Frequencies:
                        * 5180 MHz [36] (6.0 dBm) (passive scanning, no IBSS)
                        * 5190 MHz [38] (6.0 dBm) (passive scanning, no IBSS)
                        * 5200 MHz [40] (7.0 dBm) (passive scanning, no IBSS)
                        * 5220 MHz [44] (8.0 dBm) (passive scanning, no IBSS)
                        * 5230 MHz [46] (8.0 dBm) (passive scanning, no IBSS)
                        * 5240 MHz [48] (8.0 dBm) (passive scanning, no IBSS)
                        * 5260 MHz [52] (disabled)
                        * 5270 MHz [54] (disabled)
                        * 5280 MHz [56] (disabled)
                        * 5300 MHz [60] (disabled)
                        * 5310 MHz [62] (disabled)
                        * 5320 MHz [64] (disabled)
                        * 5500 MHz [100] (disabled)
                        * 5510 MHz [102] (disabled)
                        * 5520 MHz [104] (disabled)
                        * 5540 MHz [108] (disabled)
                        * 5550 MHz [110] (disabled)
                        * 5560 MHz [112] (disabled)
                        * 5580 MHz [116] (disabled)
                        * 5590 MHz [118] (disabled)
                        * 5600 MHz [120] (disabled)
                        * 5620 MHz [124] (disabled)
                        * 5630 MHz [126] (disabled)
                        * 5640 MHz [128] (disabled)
                        * 5660 MHz [132] (disabled)
                        * 5670 MHz [134] (disabled)
                        * 5680 MHz [136] (disabled)
                        * 5700 MHz [140] (disabled)
                        * 5745 MHz [149] (42949672.0 dBm) (passive scanning, no IBSS)
                        * 5755 MHz [151] (42949672.0 dBm) (passive scanning, no IBSS)
                        * 5765 MHz [153] (42949672.0 dBm) (passive scanning, no IBSS)
                        * 5785 MHz [157] (42949672.0 dBm) (passive scanning, no IBSS)
                        * 5795 MHz [159] (4.0 dBm) (passive scanning, no IBSS)
                        * 5805 MHz [161] (4.0 dBm) (passive scanning, no IBSS)
                        * 5825 MHz [165] (3.0 dBm) (passive scanning, no IBSS)
                        * 5835 MHz [167] (disabled)
                        * 5845 MHz [169] (disabled)
                        * 5855 MHz [171] (disabled)
                        * 5865 MHz [173] (disabled)
                        * 5920 MHz [184] (disabled)
                        * 5940 MHz [188] (disabled)
                        * 5960 MHz [192] (disabled)
                        * 5980 MHz [196] (disabled)
                        * 6040 MHz [208] (disabled)
                        * 6060 MHz [212] (disabled)
                        * 6080 MHz [216] (disabled)
                Bitrates (non-HT):
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
        max # scan SSIDs: 4
        Supported interface modes:
                 * IBSS
                 * managed
                 * AP
                 * AP/VLAN
                 * WDS
                 * monitor
                 * mesh point
        Supported commands:
                 * new_interface
                 * set_interface
                 * new_key
                 * new_beacon
                 * new_station
                 * new_mpath
                 * set_mesh_params
                 * set_bss
                 * authenticate
                 * associate
                 * deauthenticate
                 * disassociate
                 * join_ibss
                 * Unknown command (55)
                 * Unknown command (57)
                 * Unknown command (59)
                 * set_wiphy_netns
                 * connect
                 * disconnect

It appears to me that channel 44, which I think is an "a" channel is supported.  Any idea what the underlying error might be?

-Joshua

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