# Wi-Fi AP mode is not working/enabling the wlan0

**URL:** <https://community.solid-run.com/t/wi-fi-ap-mode-is-not-working-enabling-the-wlan0/730>\
**Category:** Uncategorized\
**Created:** [September 28, 2023, 9:53am UTC](https://community.solid-run.com/t/wi-fi-ap-mode-is-not-working-enabling-the-wlan0/730 "2023-09-28T09:53:46Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![manoj](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@manoj](https://community.solid-run.com/u/manoj)\
**Post date:** [September 28, 2023, 9:53am UTC](https://community.solid-run.com/t/wi-fi-ap-mode-is-not-working-enabling-the-wlan0/730/1 "2023-09-28T09:53:46Z")

</div>

Hi,  
I am working on IMX8MP solidrun board and I tried to set the wifi in access point mode by following the below document.

[https://www.murata.com/-/media/webrenewal/products/connectivitymodule/asset/pub/rfm/data/murata\_quick\_start\_guide\_linux.ashx#page=30&zoom=100,44,28](https://www.murata.com/-/media/webrenewal/products/connectivitymodule/asset/pub/rfm/data/murata_quick_start_guide_linux.ashx#page=30&zoom=100,44,28)

From the above link, I have gone through the 7.1.8 topic.

However, I am unable to enable the access point mode.  
Here is the log file for the AP mode.

root@imx8mpsolidrun:~# hostapd /etc/hostapd.conf  
Configuration file: /etc/hostapd.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  
[9274.175251] audit: type=1006 audit(1695893401.332:6): pid=1576 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=5 res=1  
ACS: Unable to collect survey data  
ACS: All study options have failed  
Interface initialization failed  
wlan0: interface state ACS-\>DISABLED  
wlan0: AP-DISABLED  
ACS: Possibly channel configuration is invalid, please report this along with your config file.  
ACS: Failed to start  
wlan0: AP-DISABLED  
hostapd\_free\_hapd\_data: Interface wlan0 wasn’t started  
nl80211: deinit ifname=wlan0 disabled\_11b\_rates=0  
wlan0: interface state DISABLED-\>DISABLED  
wlan0: interface state DISABLED-\>DISABLED  
wlan0: AP-DISABLED  
wlan0: CTRL-EVENT-TERMINATING  
hostapd\_free\_hapd\_data: Interface wlan0 wasn’t started

Please let me know the configurations extra need to do to enable the AP mode.

Regards  
Manoj

---

<div class="post-metadata">

**Author:** ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)\
**Post date:** [September 29, 2023, 4:41am UTC](https://community.solid-run.com/t/wi-fi-ap-mode-is-not-working-enabling-the-wlan0/730/2 "2023-09-29T04:41:00Z")

</div>

please post your hostapd.conf

---

<div class="post-metadata">

**Author:** ![manoj](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@manoj](https://community.solid-run.com/u/manoj)\
**Post date:** [October 3, 2023, 4:22am UTC](https://community.solid-run.com/t/wi-fi-ap-mode-is-not-working-enabling-the-wlan0/730/3 "2023-10-03T04:22:33Z")

</div>

Hi jnettlet,  
Here is the hostapd.conf file settings.

##### hostapd configuration file

# Empty lines and lines starting with # are ignored

# AP netdevice name (without ‘ap’ postfix, i.e., wlan0 uses wlan0ap for

# management frames with the Host AP driver); wlan0 with many nl80211 drivers

# Note: This attribute can be overridden by the values supplied with the ‘-i’

# command line parameter.

interface=wlan0

# In case of atheros and nl80211 driver interfaces, an additional

# configuration parameter, bridge, may be used to notify hostapd if the

# interface is included in a bridge. This parameter is not used with Host AP

# driver. If the bridge parameter is not set, the drivers will automatically

# figure out the bridge interface (assuming sysfs is enabled and mounted to

# /sys) and this parameter may not be needed.

# 

# For nl80211, this parameter can be used to request the AP interface to be

# added to the bridge automatically (brctl may refuse to do this before hostapd

# has been started to change the interface mode). If needed, the bridge

# interface is also created.

#bridge=br0

# Driver interface type (hostap/wired/none/nl80211/bsd);

# default: hostap). nl80211 is used with all Linux mac80211 drivers.

# Use driver=none if building hostapd as a standalone RADIUS server that does

# not control any wireless/wired driver.

# driver=hostap

# Driver interface parameters (mainly for development testing use)

# driver\_params=

# hostapd event logger configuration

# 

# Two output method: syslog and stdout (only usable if not forking to

# background).

# 

# Module bitfield (ORed bitfield of modules that will be logged; -1 = all

# modules):

# bit 0 (1) = IEEE 802.11

# bit 1 (2) = IEEE 802.1X

# bit 2 (4) = RADIUS

# bit 3 (8) = WPA

# bit 4 (16) = driver interface

# bit 6 (64) = MLME

# 

# Levels (minimum value for logged events):

# 0 = verbose debugging

# 1 = debugging

# 2 = informational messages

# 3 = notification

# 4 = warning

# 

logger\_syslog=-1  
logger\_syslog\_level=2  
logger\_stdout=-1  
logger\_stdout\_level=2

# Interface for separate control program. If this is specified, hostapd

# will create this directory and a UNIX domain socket for listening to requests

# from external programs (CLI/GUI, etc.) for status information and

# configuration. The socket file will be named based on the interface name, so

# multiple hostapd processes/interfaces can be run at the same time if more

# than one interface is used.

# /var/run/hostapd is the recommended directory for sockets and by default,

# hostapd\_cli will use it when trying to connect with hostapd.

ctrl\_interface=/var/run/hostapd

# Access control for the control interface can be configured by setting the

# directory to allow only members of a group to use sockets. This way, it is

# possible to run hostapd as root (since it needs to change network

# configuration and open raw sockets) and still allow GUI/CLI components to be

# run as non-root users. However, since the control interface can be used to

# change the network configuration, this access needs to be protected in many

# cases. By default, hostapd is configured to use gid 0 (root). If you

# want to allow non-root users to use the contron interface, add a new group

# and change this value to match with that group. Add users that should have

# control interface access to this group.

# 

# This variable can be a group name or gid.

#ctrl\_interface\_group=wheel  
ctrl\_interface\_group=0

##### IEEE 802.11 related configuration

# SSID to be used in IEEE 802.11 management frames

ssid=test

# Alternative formats for configuring SSID

# (double quoted string, hexdump, printf-escaped string)

#ssid2=“test”  
#ssid2=74657374  
#ssid2=P"hello\nthere"

# UTF-8 SSID: Whether the SSID is to be interpreted using UTF-8 encoding

#utf8\_ssid=1

# Country code (ISO/IEC 3166-1). Used to set regulatory domain.

# Set as needed to indicate country in which device is operating.

# This can limit available channels and transmit power.

# These two octets are used as the first two octets of the Country String

# (dot11CountryString)

#country\_code=US

# The third octet of the Country String (dot11CountryString)

# This parameter is used to set the third octet of the country string.

# 

# All environments of the current frequency band and country (default)

#country3=0x20

# Outdoor environment only

#country3=0x4f

# Indoor environment only

#country3=0x49

# Noncountry entity (country\_code=XX)

#country3=0x58

# IEEE 802.11 standard Annex E table indication: 0x01 .. 0x1f

# Annex E, Table E-4 (Global operating classes)

#country3=0x04

# Enable IEEE 802.11d. This advertises the country\_code and the set of allowed

# channels and transmit power levels based on the regulatory limits. The

# country\_code setting must be configured with the correct country for

# IEEE 802.11d functions.

# (default: 0 = disabled)

#ieee80211d=1

# Enable IEEE 802.11h. This enables radar detection and DFS support if

# available. DFS support is required on outdoor 5 GHz channels in most countries

# of the world. This can be used only with ieee80211d=1.

# (default: 0 = disabled)

#ieee80211h=1

# Add Power Constraint element to Beacon and Probe Response frames

# This config option adds Power Constraint element when applicable and Country

# element is added. Power Constraint element is required by Transmit Power

# Control. This can be used only with ieee80211d=1.

# Valid values are 0..255.

#local\_pwr\_constraint=3

# Set Spectrum Management subfield in the Capability Information field.

# This config option forces the Spectrum Management bit to be set. When this

# option is not set, the value of the Spectrum Management bit depends on whether

# DFS or TPC is required by regulatory authorities. This can be used only with

# ieee80211d=1 and local\_pwr\_constraint configured.

#spectrum\_mgmt\_required=1

# Operation mode (a = IEEE 802.11a (5 GHz), b = IEEE 802.11b (2.4 GHz),

# g = IEEE 802.11g (2.4 GHz), ad = IEEE 802.11ad (60 GHz); a/g options are used

# with IEEE 802.11n (HT), too, to specify band). For IEEE 802.11ac (VHT), this

# needs to be set to hw\_mode=a. When using ACS (see channel parameter), a

# special value “any” can be used to indicate that any support band can be used.

# This special case is currently supported only with drivers with which

# offloaded ACS is used.

# Default: IEEE 802.11b

hw\_mode=g

# Channel number (IEEE 802.11)

# (default: 0, i.e., not set)

# Please note that some drivers do not use this value from hostapd and the

# channel will need to be configured separately with iwconfig.

# 

# If CONFIG\_ACS build option is enabled, the channel can be selected

# automatically at run time by setting channel=acs\_survey or channel=0, both of

# which will enable the ACS survey based algorithm.

channel=1

# ACS tuning - Automatic Channel Selection

# See: [http://wireless.kernel.org/en/users/Documentation/acs](http://wireless.kernel.org/en/users/Documentation/acs)

# 

# You can customize the ACS survey algorithm with following variables:

# 

# acs\_num\_scans requirement is 1..100 - number of scans to be performed that

# are used to trigger survey data gathering of an underlying device driver.

# Scans are passive and typically take a little over 100ms (depending on the

# driver) on each available channel for given hw\_mode. Increasing this value

# means sacrificing startup time and gathering more data wrt channel

# interference that may help choosing a better channel. This can also help fine

# tune the ACS scan time in case a driver has different scan dwell times.

# 

# acs\_chan\_bias is a space-separated list of : pairs. It can be

# used to increase (or decrease) the likelihood of a specific channel to be

# selected by the ACS algorithm. The total interference factor for each channel

# gets multiplied by the specified bias value before finding the channel with

# the lowest value. In other words, values between 0.0 and 1.0 can be used to

# make a channel more likely to be picked while values larger than 1.0 make the

# specified channel less likely to be picked. This can be used, e.g., to prefer

# the commonly used 2.4 GHz band channels 1, 6, and 11 (which is the default

# behavior on 2.4 GHz band if no acs\_chan\_bias parameter is specified).

# 

# Defaults:

#acs\_num\_scans=5  
#acs\_chan\_bias=1:0.8 6:0.8 11:0.8

# Channel list restriction. This option allows hostapd to select one of the

# provided channels when a channel should be automatically selected.

# Channel list can be provided as range using hyphen (‘-’) or individual

# channels can be specified by space (’ ') separated values

# Default: all channels allowed in selected hw\_mode

#chanlist=100 104 108 112 116  
#chanlist=1 6 11-13

# Exclude DFS channels from ACS

# This option can be used to exclude all DFS channels from the ACS channel list

# in cases where the driver supports DFS channels.

#acs\_exclude\_dfs=1

# Beacon interval in kus (1.024 ms) (default: 100; range 15..65535)

beacon\_int=100

# DTIM (delivery traffic information message) period (range 1..255):

# number of beacons between DTIMs (1 = every beacon includes DTIM element)

# (default: 2)

dtim\_period=2

# Maximum number of stations allowed in station table. New stations will be

# rejected after the station table is full. IEEE 802.11 has a limit of 2007

# different association IDs, so this number should not be larger than that.

# (default: 2007)

max\_num\_sta=255

# RTS/CTS threshold; -1 = disabled (default); range -1..65535

# If this field is not included in hostapd.conf, hostapd will not control

# RTS threshold and ‘iwconfig wlan# rts ’ can be used to set it.

rts\_threshold=-1

# Fragmentation threshold; -1 = disabled (default); range -1, 256..2346

# If this field is not included in hostapd.conf, hostapd will not control

# fragmentation threshold and ‘iwconfig wlan# frag ’ can be used to set

# it.

fragm\_threshold=-1

# Rate configuration

# Default is to enable all rates supported by the hardware. This configuration

# item allows this list be filtered so that only the listed rates will be left

# in the list. If the list is empty, all rates are used. This list can have

# entries that are not in the list of rates the hardware supports (such entries

# are ignored). The entries in this list are in 100 kbps, i.e., 11 Mbps = 110.

# If this item is present, at least one rate have to be matching with the rates

# hardware supports.

# default: use the most common supported rate setting for the selected

# hw\_mode (i.e., this line can be removed from configuration file in most

# cases)

#supported\_rates=10 20 55 110 60 90 120 180 240 360 480 540

# Basic rate set configuration

# List of rates (in 100 kbps) that are included in the basic rate set.

# If this item is not included, usually reasonable default set is used.

#basic\_rates=10 20  
#basic\_rates=10 20 55 110  
#basic\_rates=60 120 240

# Beacon frame TX rate configuration

# This sets the TX rate that is used to transmit Beacon frames. If this item is

# not included, the driver default rate (likely lowest rate) is used.

# Legacy (CCK/OFDM rates):

# beacon\_rate=\<legacy rate in 100 kbps\>

# HT:

# beacon\_rate=ht:

# VHT:

# beacon\_rate=vht:

# 

# For example, beacon\_rate=10 for 1 Mbps or beacon\_rate=60 for 6 Mbps (OFDM).

#beacon\_rate=10

# Short Preamble

# This parameter can be used to enable optional use of short preamble for

# frames sent at 2 Mbps, 5.5 Mbps, and 11 Mbps to improve network performance.

# This applies only to IEEE 802.11b-compatible networks and this should only be

# enabled if the local hardware supports use of short preamble. If any of the

# associated STAs do not support short preamble, use of short preamble will be

# disabled (and enabled when such STAs disassociate) dynamically.

# 0 = do not allow use of short preamble (default)

# 1 = allow use of short preamble

#preamble=1

# Station MAC address -based authentication

# Please note that this kind of access control requires a driver that uses

# hostapd to take care of management frame processing and as such, this can be

# used with driver=hostap or driver=nl80211, but not with driver=atheros.

# 0 = accept unless in deny list

# 1 = deny unless in accept list

# 2 = use external RADIUS server (accept/deny lists are searched first)

macaddr\_acl=0

# Accept/deny lists are read from separate files (containing list of

# MAC addresses, one per line). Use absolute path name to make sure that the

# files can be read on SIGHUP configuration reloads.

#accept\_mac\_file=/etc/hostapd.accept  
#deny\_mac\_file=/etc/hostapd.deny

# IEEE 802.11 specifies two authentication algorithms. hostapd can be

# configured to allow both of these or only one. Open system authentication

# should be used with IEEE 802.1X.

# Bit fields of allowed authentication algorithms:

# bit 0 = Open System Authentication

# bit 1 = Shared Key Authentication (requires WEP)

auth\_algs=3

# Send empty SSID in beacons and ignore probe request frames that do not

# specify full SSID, i.e., require stations to know SSID.

# default: disabled (0)

# 1 = send empty (length=0) SSID in beacon and ignore probe request for

# broadcast SSID

# 2 = clear SSID (ASCII 0), but keep the original length (this may be required

# with some clients that do not support empty SSID) and ignore probe

# requests for broadcast SSID

ignore\_broadcast\_ssid=0

# Do not reply to broadcast Probe Request frames from unassociated STA if there

# is no room for additional stations (max\_num\_sta). This can be used to

# discourage a STA from trying to associate with this AP if the association

# would be rejected due to maximum STA limit.

# Default: 0 (disabled)

#no\_probe\_resp\_if\_max\_sta=0

# Additional vendor specific elements for Beacon and Probe Response frames

# This parameter can be used to add additional vendor specific element(s) into

# the end of the Beacon and Probe Response frames. The format for these

# element(s) is a hexdump of the raw information elements (id+len+payload for

# one or more elements)

#vendor\_elements=dd0411223301

# Additional vendor specific elements for (Re)Association Response frames

# This parameter can be used to add additional vendor specific element(s) into

# the end of the (Re)Association Response frames. The format for these

# element(s) is a hexdump of the raw information elements (id+len+payload for

# one or more elements)

#assocresp\_elements=dd0411223301

# TX queue parameters (EDCF / bursting)

# tx\_queue\_\_

# queues: data0, data1, data2, data3

# (data0 is the highest priority queue)

# parameters:

# aifs: AIFS (default 2)

# cwmin: cwMin (1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191,

# 16383, 32767)

# cwmax: cwMax (same values as cwMin, 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. The allowed range for these

# wmm\_ac\_??\_{cwmin,cwmax} is 0..15 with cwmax \>= cwmin.

# 

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

# Enable Multi-AP functionality

# 0 = disabled (default)

# 1 = AP support backhaul BSS

# 2 = AP support fronthaul BSS

# 3 = AP supports both backhaul BSS and fronthaul BSS

#multi\_ap=0

# Static WEP key configuration

# 

# The key number to use when transmitting.

# It must be between 0 and 3, and the corresponding key must be set.

# default: not set

#wep\_default\_key=0

# The WEP keys to use.

# A key may be a quoted string or unquoted hexadecimal digits.

# The key length should be 5, 13, or 16 characters, or 10, 26, or 32

# digits, depending on whether 40-bit (64-bit), 104-bit (128-bit), or

# 128-bit (152-bit) WEP is used.

# Only the default key must be supplied; the others are optional.

# default: not set

#wep\_key0=123456789a  
#wep\_key1=“vwxyz”  
#wep\_key2=0102030405060708090a0b0c0d  
#wep\_key3=“.2.4.6.8.0.23”

# Station inactivity limit

# 

# If a station does not send anything in ap\_max\_inactivity seconds, an

# empty data frame is sent to it in order to verify whether it is

# still in range. If this frame is not ACKed, the station will be

# disassociated and then deauthenticated. This feature is used to

# clear station table of old entries when the STAs move out of the

# range.

# 

# The station can associate again with the AP if it is still in range;

# this inactivity poll is just used as a nicer way of verifying

# inactivity; i.e., client will not report broken connection because

# disassociation frame is not sent immediately without first polling

# the STA with a data frame.

# default: 300 (i.e., 5 minutes)

#ap\_max\_inactivity=300

# 

# The inactivity polling can be disabled to disconnect stations based on

# inactivity timeout so that idle stations are more likely to be disconnected

# even if they are still in range of the AP. This can be done by setting

# skip\_inactivity\_poll to 1 (default 0).

#skip\_inactivity\_poll=0

# Disassociate stations based on excessive transmission failures or other

# indications of connection loss. This depends on the driver capabilities and

# may not be available with all drivers.

#disassoc\_low\_ack=1

# Maximum allowed Listen Interval (how many Beacon periods STAs are allowed to

# remain asleep). Default: 65535 (no limit apart from field size)

#max\_listen\_interval=100

# WDS (4-address frame) mode with per-station virtual interfaces

# (only supported with driver=nl80211)

# This mode allows associated stations to use 4-address frames to allow layer 2

# bridging to be used.

#wds\_sta=1

# If bridge parameter is set, the WDS STA interface will be added to the same

# bridge by default. This can be overridden with the wds\_bridge parameter to

# use a separate bridge.

#wds\_bridge=wds-br0

# Start the AP with beaconing disabled by default.

#start\_disabled=0

# Client isolation can be used to prevent low-level bridging of frames between

# associated stations in the BSS. By default, this bridging is allowed.

#ap\_isolate=1

# BSS Load update period (in BUs)

# This field is used to enable and configure adding a BSS Load element into

# Beacon and Probe Response frames.

#bss\_load\_update\_period=50

# Channel utilization averaging period (in BUs)

# This field is used to enable and configure channel utilization average

# calculation with bss\_load\_update\_period. This should be in multiples of

# bss\_load\_update\_period for more accurate calculation.

#chan\_util\_avg\_period=600

# Fixed BSS Load value for testing purposes

# This field can be used to configure hostapd to add a fixed BSS Load element

# into Beacon and Probe Response frames for testing purposes. The format is

# ::

#bss\_load\_test=12:80:20000

# Multicast to unicast conversion

# Request that the AP will do multicast-to-unicast conversion for ARP, IPv4, and

# IPv6 frames (possibly within 802.1Q). If enabled, such frames are to be sent

# to each station separately, with the DA replaced by their own MAC address

# rather than the group address.

# 

# Note that this may break certain expectations of the receiver, such as the

# ability to drop unicast IP packets received within multicast L2 frames, or the

# ability to not send ICMP destination unreachable messages for packets received

# in L2 multicast (which is required, but the receiver can’t tell the difference

# if this new option is enabled).

# 

# This also doesn’t implement the 802.11 DMS (directed multicast service).

# 

#multicast\_to\_unicast=0

# Send broadcast Deauthentication frame on AP start/stop

# Default: 1 (enabled)

#broadcast\_deauth=1

##### IEEE 802.11n related configuration

# ieee80211n: Whether IEEE 802.11n (HT) is enabled

# 0 = disabled (default)

# 1 = enabled

# Note: You will also need to enable WMM for full HT functionality.

# Note: hw\_mode=g (2.4 GHz) and hw\_mode=a (5 GHz) is used to specify the band.

#ieee80211n=1

# ht\_capab: HT capabilities (list of flags)

# LDPC coding capability: [LDPC] = supported

# Supported channel width set: [HT40-] = both 20 MHz and 40 MHz with secondary

# channel below the primary channel; [HT40+] = both 20 MHz and 40 MHz

# with secondary channel above the primary channel

# (20 MHz only if neither is set)

# Note: There are limits on which channels can be used with HT40- and

# HT40+. Following table shows the channels that may be available for

# HT40- and HT40+ use per IEEE 802.11n Annex J:

# freq HT40- HT40+

# 2.4 GHz 5-13 1-7 (1-9 in Europe/Japan)

# 5 GHz 40,48,56,64 36,44,52,60

# (depending on the location, not all of these channels may be available

# for use)

# Please note that 40 MHz channels may switch their primary and secondary

# channels if needed or creation of 40 MHz channel maybe rejected based

# on overlapping BSSes. These changes are done automatically when hostapd

# is setting up the 40 MHz channel.

# Spatial Multiplexing (SM) Power Save: [SMPS-STATIC] or [SMPS-DYNAMIC]

# (SMPS disabled if neither is set)

# HT-greenfield: [GF] (disabled if not set)

# Short GI for 20 MHz: [SHORT-GI-20] (disabled if not set)

# Short GI for 40 MHz: [SHORT-GI-40] (disabled if not set)

# Tx STBC: [TX-STBC] (disabled if not set)

# Rx STBC: [RX-STBC1] (one spatial stream), [RX-STBC12] (one or two spatial

# streams), or [RX-STBC123] (one, two, or three spatial streams); Rx STBC

# disabled if none of these set

# HT-delayed Block Ack: [DELAYED-BA] (disabled if not set)

# Maximum A-MSDU length: [MAX-AMSDU-7935] for 7935 octets (3839 octets if not

# set)

# DSSS/CCK Mode in 40 MHz: [DSSS\_CCK-40] = allowed (not allowed if not set)

# 40 MHz intolerant [40-INTOLERANT] (not advertised if not set)

# L-SIG TXOP protection support: [LSIG-TXOP-PROT] (disabled if not set)

#ht\_capab=[HT40-][SHORT-GI-20][SHORT-GI-40]

# Require stations to support HT PHY (reject association if they do not)

#require\_ht=1

# If set non-zero, require stations to perform scans of overlapping

# channels to test for stations which would be affected by 40 MHz traffic.

# This parameter sets the interval in seconds between these scans. Setting this

# to non-zero allows 2.4 GHz band AP to move dynamically to a 40 MHz channel if

# no co-existence issues with neighboring devices are found.

#obss\_interval=0

eapol\_key\_index\_workaround=0

# authentication server.

eap\_server=0

If you could help me set up a hostapd by considering the India location, that would be greatly appreciated.

Regards  
Manoj