Ahoj,
mam v serveru Atheros 802.11n AR928X miniPCIe wifi kartu:
$ lspci
03:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)
# iw list
Wiphy phy0
Band 1:
Capabilities: 0x11ce
HT20/HT40
SM Power Save disabled
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT RX MCS rate indexes supported: 0-15
TX unequal modulation not supported
HT TX Max spatial streams: 1
HT TX MCS rate indexes supported may differ
Frequencies:
* 2412 MHz [1] (16.0 dBm)
* 2417 MHz [2] (16.0 dBm)
* 2422 MHz [3] (16.0 dBm)
* 2427 MHz [4] (16.0 dBm)
* 2432 MHz [5] (16.0 dBm)
* 2437 MHz [6] (16.0 dBm)
* 2442 MHz [7] (16.0 dBm)
* 2447 MHz [8] (16.0 dBm)
* 2452 MHz [9] (16.0 dBm)
* 2457 MHz [10] (16.0 dBm)
* 2462 MHz [11] (15.0 dBm)
* 2467 MHz [12] (16.0 dBm) (passive scanning)
* 2472 MHz [13] (16.0 dBm)
* 2484 MHz [14] (17.0 dBm) (passive scanning)
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
max # scan SSIDs: 4
max scan IEs length: 2257 bytes
Coverage class: 0 (up to 0m)
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP (00-0f-ac:4)
* CMAC (00-0f-ac:6)
Available Antennas: TX 0x1 RX 0x3
Configured Antennas: TX 0x1 RX 0x3
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* WDS
* monitor
* mesh point
* P2P-client
* P2P-GO
software interface modes (can always be added):
* AP/VLAN
* monitor
interface combinations are not supported
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
* join_mesh
* remain_on_channel
* set_tx_bitrate_mask
* action
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* managed: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* AP: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* AP/VLAN: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* mesh point: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* P2P-client: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
* P2P-GO: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0
Supported RX frame types:
* IBSS: 0x00d0
* managed: 0x0040 0x00d0
* AP: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0
* AP/VLAN: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0
* mesh point: 0x00b0 0x00c0 0x00d0
* P2P-client: 0x0040 0x00d0
* P2P-GO: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0
Device supports RSN-IBSS.
Hostapd 0.7.3 (Ubuntu 12.04).
Mam mensi problem s nastavenim 802.11n. inSSIDer ve Windows mi porad ukazuje jenom 20MHz, ale u sousedu s wifi krabickami za 500Kc ukazuje 40MHz. A temer porad se mi na mobilu i notebooku ukazuje 65Mbps, takze 11n funguje.
Mam nasledujici nastaveni:
# cat /etc/hostapd/hostapd.conf
interface=wlan0
bridge=br0
driver=nl80211
dump_file=/tmp/hostapd.dump
eapol_key_index_workaround=0
ssid=MojeWiFina
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_psk=a8e8aeb4644886e605dd280ca125d5156ee6b27ebbb78c86bad3f4af07524b33
hw_mode=g
channel=6
ieee80211n=1
ht_capab=[HT20+][HT20-][HT40+][HT40-][TX-STBC][RX-STBC3][SHORT-GI-20][SHORT-GI-40][DSSS_CCK-40]
preamble=1
wmm_enabled=1
Pri nastaveni vychazim z ukazkoveho
hostapd.conf, ale nektere volby mi porad nejsou jasne.
Napr. 2. wifi kanal HT40+- musim mit podle hlavniho kanalu:
# freq HT40- HT40+
# 2.4 GHz 5-13 1-7 (1-9 in Europe/Japan)To chapu. Co ale znamenaji ostatni capabilities?
- [SHORT-GI-20]
- [SHORT-GI-40]
- [SMPS-STATIC] or [SMPS-DYNAMIC]
- [TX-STBC]
- [RX-STBC123] - pocet "spatial stream" (one, two, or three spatial streams) - to ma byt pocet soucasnych prijimani?
- [MAX-AMSDU-7935]
- [DSSS_CCK-40]
- [PSMP]
- [LSIG-TXOP-PROT]
Na co jsou ostatni?
Pomoci
# Require stations to support HT PHY (reject association if they do not)
#require_ht=1 zakazu pripojeni 802.11bg klientum? Nebo na co to je?
A jak se nastavuje a co je WMM? Jestli jsem spravne pochopil, tak jde o rozsireni pro multimedia a QOS.
V ukazkovem konfiguraku je:
# TX queue parameters (EDCF / bursting)
# tx_queue_<queue name>_<param>
# queues: data0, data1, data2, data3, after_beacon, beacon
# (data0 is the highest priority queue)
# parameters:
# aifs: AIFS (default 2)
# cwmin: cwMin (1, 3, 7, 15, 31, 63, 127, 255, 511, 1023)
# cwmax: cwMax (1, 3, 7, 15, 31, 63, 127, 255, 511, 1023); cwMax >= cwMin
# burst: maximum length (in milliseconds with precision of up to 0.1 ms) for
# bursting
#
# Default WMM parameters (IEEE 802.11 draft; 11-03-0504-03-000e):
# These parameters are used by the access point when transmitting frames
# to the clients.
#
# Low priority / AC_BK = background
#tx_queue_data3_aifs=7
#tx_queue_data3_cwmin=15
#tx_queue_data3_cwmax=1023
#tx_queue_data3_burst=0
# Note: for IEEE 802.11b mode: cWmin=31 cWmax=1023 burst=0
#
# Normal priority / AC_BE = best effort
#tx_queue_data2_aifs=3
#tx_queue_data2_cwmin=15
#tx_queue_data2_cwmax=63
#tx_queue_data2_burst=0
# Note: for IEEE 802.11b mode: cWmin=31 cWmax=127 burst=0
#
# High priority / AC_VI = video
#tx_queue_data1_aifs=1
#tx_queue_data1_cwmin=7
#tx_queue_data1_cwmax=15
#tx_queue_data1_burst=3.0
# Note: for IEEE 802.11b mode: cWmin=15 cWmax=31 burst=6.0
#
# Highest priority / AC_VO = voice
#tx_queue_data0_aifs=1
#tx_queue_data0_cwmin=3
#tx_queue_data0_cwmax=7
#tx_queue_data0_burst=1.5
# Note: for IEEE 802.11b mode: cWmin=7 cWmax=15 burst=3.3
# 802.1D Tag (= UP) to AC mappings
# WMM specifies following mapping of data frames to different ACs. This mapping
# can be configured using Linux QoS/tc and sch_pktpri.o module.
# 802.1D Tag 802.1D Designation Access Category WMM Designation
# 1 BK AC_BK Background
# 2 - AC_BK Background
# 0 BE AC_BE Best Effort
# 3 EE AC_BE Best Effort
# 4 CL AC_VI Video
# 5 VI AC_VI Video
# 6 VO AC_VO Voice
# 7 NC AC_VO Voice
# Data frames with no priority information: AC_BE
# Management frames: AC_VO
# PS-Poll frames: AC_BE
# Default WMM parameters (IEEE 802.11 draft; 11-03-0504-03-000e):
# for 802.11a or 802.11g networks
# These parameters are sent to WMM clients when they associate.
# The parameters will be used by WMM clients for frames transmitted to the
# access point.
#
# note - txop_limit is in units of 32microseconds
# note - acm is admission control mandatory flag. 0 = admission control not
# required, 1 = mandatory
# note - here cwMin and cmMax are in exponent form. the actual cw value used
# will be (2^n)-1 where n is the value given here
#
wmm_enabled=1
#
# WMM-PS Unscheduled Automatic Power Save Delivery [U-APSD]
# Enable this flag if U-APSD supported outside hostapd (eg., Firmware/driver)
#uapsd_advertisement_enabled=1
#
# Low priority / AC_BK = background
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
# Note: for IEEE 802.11b mode: cWmin=5 cWmax=10
#
# Normal priority / AC_BE = best effort
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
# Note: for IEEE 802.11b mode: cWmin=5 cWmax=7
#
# High priority / AC_VI = video
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
# Note: for IEEE 802.11b mode: cWmin=4 cWmax=5 txop_limit=188
#
# Highest priority / AC_VO = voice
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
# Note: for IEEE 802.11b mode: cWmin=3 cWmax=4 burst=102
Jak treba nastavim QOS pro VoIP? Jde rozdelit pasmo treba na VoIP a streamovani videa?
Nikde se mi nepodarilo najit nejake rozumne vysvetleni :-(
Dekuji za rady.
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