iwd.ap - Man Page

Configuration of IWD access points


iwd.ap - Access point provisioning files


Description of access point provisioning files.


An access point provisioning file defines the configuration of an IWD access point. These files live in $STATE_DIRECTORY/ap (/var/lib/iwd/ap by default). They are read when the net.connman.iwd.AccessPoint.StartProfile(ssid) DBus method is used.

File Format

See iwd.network for details on the settings file syntax.


The settings are split into several categories.  Each category has a group associated with it and is described in the corresponding table below.

General Settings

The group [General] contains general AP configuration.

ChannelChannel number

Optional channel number for the access point to operate on. If omitted the channel will be chosen automatically. Channels greater than or equal to 36 will select the 5GHz band for the AP to operate on.

Note: Due to regulatory requirements the linux kernel does not allow or strictly limits 5GHz use in AP mode while in world roaming. These frequencies become available once the country is set, either via IWD's main.conf option [General].Country (see man iwd.config) or externally (e.g. iw reg set <CC>). If you are having trouble using 5GHz ensure the country is set, and that the desired frequency/channel is unrestricted.
RekeyTimeoutTimeout for PTK rekeys (seconds)

The time interval at which the AP starts a rekey for a given station. If not provided a default value of 0 is used (rekeying is disabled).
DisableHTBoolean value

Explicitly disable HT capabilities for this AP.

Network Authentication Settings

The group [Security] contains settings for Wi-Fi security and authentication configuration.

Passphrase8..63 character string

WPA-PSK Passphrase to be used with this access point.  At least one of Passphrase, PreSharedKey must be present.
PreSharedKey64-character hex-string

Processed passphrase for this network in the form of a hex-encoded 32-byte pre-shared key.  Either this or Passphrase must be present.
PairwiseCiphersComma separated list of pairwise ciphers for the AP supports.

Values can include: TKIP, CCMP, GCMP, GCMP-256, CCMP-256

The underlying hardware and IWD's AP implementation must also support the ciphers listed
GroupCipherGroup cipher the AP uses

A single cipher value the AP can use as the group cipher. Values are the same as pairwise ciphers and the same restrictions apply (hardware and IWD implementation must support the cipher)

IPv4 Network Configuration

The group [IPv4] contains settings for IWD's built-in DHCP server.  All settings are optional.  They're used if network configuration was enabled as described in iwd.config(5).  Omitting the [IPv4] group disables network configuration for this access point so if an all-defaults DHCP setup is desired, the group header line must still be present:

# Enable network configuration

[other groups follow]
AddressLocal IP address or a comma-separated list of prefix-notation addresses

Optional local address pool for the access point and the DHCP server. If a single address is provided this address will be set on the AP interface and any other DHCP server options will be derived from it if not overridden by other settings below.

If a list of addresses and prefix lengths is specified (in the <IP>/<prefix-len> format), a single subnet address will be selected from the available space each time this profile is started.  The subnet size is based on the [IPv4].Netmask setting.

If Address is not provided and no IP address is set on the interface prior to calling StartProfile the value of the main.conf [IPv4].APAddressPool setting will be inherited, which in turn defaults to

For example, if [IPv4].Netmask is set to and this setting, or the global APAddressPool fallback, is set to,, IWD will select one of the 256 subnets with addresses in the 192.168.<0-255>.0/24 range or one of the 4 subnets with addresses in the 10.0.<0-3>.0/24 range, allowing 270 possible subnets.  Defining an address pool larger than the desired subnet gives IWD a chance to avoid conflicts if other interfaces on the system use dynamically assigned addresses.
GatewayIP Address of gateway

IP address of the gateway to be advertised by DHCP. This will fall back to the local IP address if not provided.
NetmaskLocal netmask of the AP

Defaults to a 28-bit netmask if not provided.
DNSListList of DNS servers as a comma-separated IP address list

A list of DNS servers which will be advertised by the DHCP server. If not provided no DNS servers will be sent by the DHCP server.
LeaseTimeTime limit for DHCP leases in seconds

Override the default lease time.
IPRangeRange of IPs given as two addresses separated by a comma

From and to addresses of the range assigned to clients through DHCP. If not provided the range from local address + 1 to .254 will be used.

Wi-Fi Simple Configuration

The group [WSC] fine-tunes some Wi-Fi Simple Configuration local parameters (formerly known as WPS, Wi-Fi Protected Setup.)

DeviceName1..32-character string

Optional Device Name string for the AP to advertise as.  Defaults to the SSID.
PrimaryDeviceTypeSubcategory string or a 64-bit integer

Optional Primary Device Type for the AP to advertise as.  Defaults to PC computer.  Can be specified as a lower-case WSC v2.0.5 subcategory string or a 64-bit integer encoding, from MSB to LSB: the 16-bit category ID, the 24-bit OUI, the 8-bit OUI type and the 16-bit subcategory ID.
AuthorizedMACsComma-separated MAC address list

Optional list of Authorized MAC addresses for the WSC registrar to check on association.  Each address is specified in the colon-hexadecimal notation.  Defaults to no MAC-based checks.

See Also

iwd(8), iwd.network(5)


James Prestwood <prestwoj@gmail.com>


20 October 2020 iwd Linux Connectivity