mjhjmtu

I am using hostapd on Alpinelinux (4.14.69 kernel, Intel(R) Centrino(R) Advanced-N 6205 AGN, REV=0xB0 wireless module).

At first, I want to make the wireless device as both AP and station. So I ran following commands

# iw dev wlan0 interface add wlan0_sta type managed addr 12:34:56:78:ab:cd 
# iw dev wlan0 interface add wlan0_ap type managed addr 12:34:56:78:ab:ce

Then ran hostapd against wlan0_ap. The SSID appeared. Associatable, but DEAUTH from client side in 3 secs. wpa_supplicant said "4 way handshake failure".

Then I ran hostapd against wlan0, with same other confs. Everything just worked.

So I wonder what else should I do, or if my device does not support this.

iw list

Wiphy phy0
max # scan SSIDs: 20
max scan IEs length: 195 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Supported Ciphers:
 * WEP40 (00-0f-ac:1)
 * WEP104 (00-0f-ac:5)
 * TKIP (00-0f-ac:2)
 * CCMP-128 (00-0f-ac:4)
 * CCMP-256 (00-0f-ac:10)
 * GCMP-128 (00-0f-ac:8)
 * GCMP-256 (00-0f-ac:9)
Available Antennas: TX 0 RX 0
Supported interface modes:
 * IBSS
 * managed
 * AP
 * AP/VLAN
 * monitor
Band 1:
 Capabilities: 0x107e
 HT20/HT40
 SM Power Save disabled
 RX Greenfield
 RX HT20 SGI
 RX HT40 SGI
 No RX STBC
 Max AMSDU length: 3839 bytes
 DSSS/CCK HT40
 Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
 Minimum RX AMPDU time spacing: 4 usec (0x05)
 HT Max RX data rate: 300 Mbps
 HT TX/RX MCS rate indexes supported: 0-15
 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
 Frequencies:
 * 2412 MHz [1] (15.0 dBm)
 * 2417 MHz [2] (15.0 dBm)
 * 2422 MHz [3] (15.0 dBm)
 * 2427 MHz [4] (15.0 dBm)
 * 2432 MHz [5] (15.0 dBm)
 * 2437 MHz [6] (15.0 dBm)
 * 2442 MHz [7] (15.0 dBm)
 * 2447 MHz [8] (15.0 dBm)
 * 2452 MHz [9] (15.0 dBm)
 * 2457 MHz [10] (15.0 dBm)
 * 2462 MHz [11] (15.0 dBm)
 * 2467 MHz [12] (15.0 dBm) (no IR)
 * 2472 MHz [13] (15.0 dBm) (no IR)
Band 2:
 Capabilities: 0x107e
 HT20/HT40
 SM Power Save disabled
 RX Greenfield
 RX HT20 SGI
 RX HT40 SGI
 No RX STBC
 Max AMSDU length: 3839 bytes
 DSSS/CCK HT40
 Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
 Minimum RX AMPDU time spacing: 4 usec (0x05)
 HT Max RX data rate: 300 Mbps
 HT TX/RX MCS rate indexes supported: 0-15
 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
 Frequencies:
 * 5180 MHz [36] (15.0 dBm) (no IR)
 * 5200 MHz [40] (15.0 dBm) (no IR)
 * 5220 MHz [44] (15.0 dBm) (no IR)
 * 5240 MHz [48] (15.0 dBm) (no IR)
 * 5260 MHz [52] (15.0 dBm) (no IR, radar detection)
 * 5280 MHz [56] (15.0 dBm) (no IR, radar detection)
 * 5300 MHz [60] (15.0 dBm) (no IR, radar detection)
 * 5320 MHz [64] (15.0 dBm) (no IR, radar detection)
 * 5500 MHz [100] (15.0 dBm) (no IR, radar detection)
 * 5520 MHz [104] (15.0 dBm) (no IR, radar detection)
 * 5540 MHz [108] (15.0 dBm) (no IR, radar detection)
 * 5560 MHz [112] (15.0 dBm) (no IR, radar detection)
 * 5580 MHz [116] (15.0 dBm) (no IR, radar detection)
 * 5600 MHz [120] (15.0 dBm) (no IR, radar detection)
 * 5620 MHz [124] (15.0 dBm) (no IR, radar detection)
 * 5640 MHz [128] (15.0 dBm) (no IR, radar detection)
 * 5660 MHz [132] (15.0 dBm) (no IR, radar detection)
 * 5680 MHz [136] (15.0 dBm) (no IR, radar detection)
 * 5700 MHz [140] (15.0 dBm) (no IR, radar detection)
 * 5745 MHz [149] (15.0 dBm) (no IR)
 * 5765 MHz [153] (15.0 dBm) (no IR)
 * 5785 MHz [157] (15.0 dBm) (no IR)
 * 5805 MHz [161] (15.0 dBm) (no IR)
 * 5825 MHz [165] (15.0 dBm) (no IR)
Supported commands:
 * new_interface
 * set_interface
 * new_key
 * start_ap
 * new_station
 * set_bss
 * authenticate
 * associate
 * deauthenticate
 * disassociate
 * join_ibss
 * set_tx_bitrate_mask
 * frame
 * frame_wait_cancel
 * set_wiphy_netns
 * set_channel
 * set_wds_peer
 * probe_client
 * set_noack_map
 * register_beacons
 * start_p2p_device
 * set_mcast_rate
 * connect
 * disconnect
 * set_qos_map
 * set_multicast_to_unicast
Supported TX frame types:
 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
 * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
 * IBSS: 0x40 0xb0 0xc0 0xd0
 * managed: 0x40 0xd0
 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
 * mesh point: 0xb0 0xc0 0xd0
 * P2P-client: 0x40 0xd0
 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
 * P2P-device: 0x40 0xd0
WoWLAN support:
 * wake up on disconnect
 * wake up on magic packet
 * wake up on pattern match, up to 20 patterns of 16-128 bytes,
 maximum packet offset 0 bytes
 * can do GTK rekeying
 * wake up on GTK rekey failure
 * wake up on EAP identity request
 * wake up on rfkill release
software interface modes (can always be added):
 * AP/VLAN
 * monitor
valid interface combinations:
 * # managed <= 1, # AP <= 1,
 total <= 2, #channels <= 1, STA/AP BI must match
 * # managed <= 2,
 total <= 2, #channels <= 1
HT Capability overrides:
 * MCS: ff ff ff ff ff ff ff ff ff ff
 * maximum A-MSDU length
 * supported channel width
 * short GI for 40 MHz
 * max A-MPDU length exponent
 * min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
Device supports per-vif TX power setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Device supports static SMPS
Device supports dynamic SMPS
Device supports configuring vdev MAC-addr on create.

hostapd.conf

auth_algs=1
channel=11
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
driver=nl80211
eap_server=0
eapol_key_index_workaround=0
fragm_threshold=-1
hw_mode=g
ignore_broadcast_ssid=0
interface=wlan0
macaddr_acl=0
max_num_sta=255
own_ip_addr=127.0.0.1
rts_threshold=-1
ssid=MYSSID
utf8_ssid=1
wpa=2
wpa_passphrase=MYPASS