hostapd.conf
- configuration file for
hostapd(8)
utility
DESCRIPTION
The
hostapd(8)
utility
is an authenticator for IEEE 802.11 networks.
It provides full support for WPA/IEEE 802.11i and
can also act as an IEEE 802.1X Authenticator with a suitable
backend Authentication Server (typically
FreeRADIUS )
The configuration file consists of global parameters and domain
specific configuration:
The pathname of the directory in which
hostapd(8)
creates
UNIX
domain socket files for communication
with frontend programs such as
hostapd_cli8.
ctrl_interface_group
A group name or group ID to use in setting protection on the
control interface file.
This can be set to allow non-root users to access the
control interface files.
If no group is specified, the group ID of the control interface
is not modified and will, typically, be the
group ID of the directory in which the socket is created.
IEEE 802.1X-2004 PARAMETERS
The following parameters are recognized:
ieee8021x
Require IEEE 802.1X authorization.
eap_message
Optional displayable message sent with EAP Request-Identity.
wep_key_len_broadcast
Key lengths for broadcast keys.
wep_key_len_unicast
Key lengths for unicast keys.
wep_rekey_period
Rekeying period in seconds.
eapol_key_index_workaround
EAPOL-Key index workaround (set bit7) for WinXP Supplicant.
eap_reauth_period
EAP reauthentication period in seconds.
To disable reauthentication,
use
``0''
RADIUS CLIENT PARAMETERS
The following parameters are recognized:
own_ip_addr
The own IP address of the access point (used as NAS-IP-Address).
nas_identifier
Optional NAS-Identifier string for RADIUS messages.
RADIUS accounting server parameters.
Can be defined twice for secondary servers to be used if primary one
does not reply to RADIUS packets.
radius_retry_primary_interval
Retry interval for trying to return to the primary RADIUS server (in
seconds).
radius_acct_interim_interval
Interim accounting update interval.
If this is set (larger than 0) and acct_server is configured,
hostapd(8)
will send interim accounting updates every N seconds.
RADIUS AUTHENTICATION SERVER PARAMETERS
The following parameters are recognized:
radius_server_clients
File name of the RADIUS clients configuration for the RADIUS server.
If this is commented out, RADIUS server is disabled.
radius_server_auth_port
The UDP port number for the RADIUS authentication server.
radius_server_ipv6
Use IPv6 with RADIUS server.
WPA/IEEE 802.11i PARAMETERS
The following parameters are recognized:
wpa
Enable WPA.
Setting this variable configures the AP to require WPA (either
WPA-PSK or WPA-RADIUS/EAP based on other configuration).
wpa_psk , wpa_passphrase
WPA pre-shared keys for WPA-PSK.
This can be either entered as a 256-bit secret in hex format (64 hex
digits), wpa_psk, or as an ASCII passphrase (8..63 characters) that
will be converted to PSK.
This conversion uses SSID so the PSK changes when ASCII passphrase is
used and the SSID is changed.
wpa_psk_file
Optionally, WPA PSKs can be read from a separate text file (containing a
list of (PSK,MAC address) pairs.
wpa_key_mgmt
Set of accepted key management algorithms (WPA-PSK, WPA-EAP, or both).
wpa_pairwise
Set of accepted cipher suites (encryption algorithms) for pairwise keys
(unicast packets).
See the example file for more information.
wpa_group_rekey
Time interval for rekeying GTK (broadcast/multicast encryption keys) in
seconds.
wpa_strict_rekey
Rekey GTK when any STA that possesses the current GTK is leaving the
BSS.
wpa_gmk_rekey
Time interval for rekeying GMK (master key used internally to generate GTKs),
in seconds.
