##### 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); ath0 for madwifi interface=wlan0 # In case of madwifi driver, an additional configuration parameter, bridge, # must be used to notify hostapd if the interface is included in a bridge. This # parameter is not used with Host AP driver. #bridge=br0 # Driver interface type (hostap/wired/madwifi/prism54/test/nl80211/bsd); # default: hostap) # Use driver=test if building hostapd as a standalone RADIUS server that does # not control any wireless/wired driver. driver=nl80211 # 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 5 (32) = IAPP # 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 # Dump file for state information (on SIGUSR1) dump_file=/tmp/hostapd.dump # 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=xoAP # Country code (ISO/IEC 3166-1). Used to set regulatory domain. # Modify as needed to indicate country in which device is operating. # This can limit available channels and transmit power. # (default: US) # country_code=US # 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 the TPC and DFS services when operating # in a regulatory domain which requires them. Once enabled it will be # operational only when working in hw_mode a and in countries where it is # required. The end user should not be allowed to disable this. # The country_code setting must be configured with the correct country for # IEEE 802.11h to function. # When IEEE 802.11h is operational, the channel_policy and configured channel # settings will be ignored but will behave as though the channel_policy is # set to "3" (automatic channel selection). When IEEE 802.11h is enabled but # not operational (for example, if the radio mode is changed from "a" to "b") # the channel_policy and channel settings take effect again. # (default: 1 = enabled) #ieee80211h=1 # Operation mode (a = IEEE 802.11a, b = IEEE 802.11b, g = IEEE 802.11g, # Default: IEEE 802.11b hw_mode=g # Channel number (IEEE 802.11) # (default: 0, i.e., not set, used with channel_policy=2) channel=6 # Beacon interval in kus (1.024 ms) (default: 100; range 15..65535) beacon_int=100 # DTIM (delivery trafic 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; 2347 = disabled (default); range 0..2347 # 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=2347 # Fragmentation threshold; 2346 = disabled (default); range 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=2346 # 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 # 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=madwifi. # 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 # TX queue parameters (EDCF / bursting) # default for all these fields: not set, use hardware defaults # tx_queue__ # 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_que#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 # # Special queues; normally not user configurable # #tx_queue_after_beacon_aifs=2 #tx_queue_after_beacon_cwmin=15 #tx_queue_after_beacon_cwmax=1023 #tx_queue_after_1-03-0504-03-000e): # 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 # wme_enabled=0 # # Low priority / AC_BK = background wme_ac_bk_cwmin=4 wme_ac_bk_cwmax=10 wme_ac_bk_aifs=7 wme_ac_bk_txop_limit=0 wme_ac_bk_acm=0 # Note: for IEEE 802.11b mode: cWmin=5 cWmax=10 # # Normal priority / AC_BE = best effort wme_ac_be_aifs=3 wme_ac_be_cwmin=4 wme_ac_be_cwmax=10 wme_ac_be_txop_limit=0 wme_ac_be_acm=0 # Note: for IEEE 802.11b mode: cWmin=5 cWmax=7 # # High priority / AC_VI = video wme_ac_vi_aifs=2 wme_ac_vi_cwmin=3 wme_ac_vi_cwmax=4 #wme_ac_vi_txop_le: cWmin=4 cWmax=5 txop_limit=188 # # Highest priority / AC_VO = voice wme_ac_vo_aifs=2 wme_ac_vo_cwmin=2 wme_ac_vo_cwmax=3 wme_ac_vo_txop_limit=47 wme_ac_vo_acm=0 # Note: for IEEE 802.11b mode: cWmin=3 cWmax=4 burst=102 # Associate as a stations 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 # Enable/disable internal bridge for packets between associated stations. # # When IEEE 802.11 is used in managed mode, packets are usually send through # the AP even if they are from a wireless station to another wireless station. # This functionality requires that the AP hame interface if their destination is another associated # station. In addition, broadcast/multicast frames from wireless stations will # be sent both to the host system net stack (e.g., to eventually wired network) # and back to the wireless interface. # # The internal bridge is implemented within the wireless kernel module and it # bypasses kernel filtering remain asleep). Default: 65535 (no limit apart from field size) #max_listen_interval=100 ##### IEEE 802.1X-2004 related configuration ################################## # Require IEEE 802.1X authorization ieee8021x=0 # IEEE 802.1X/EAPOL version # hostapd is implemented based on IEEE Std 802.1X-2004 which defines EAPOL # version 2. However, there are many client implementations that do not handle # the new version number correctly (they seem to drop the frames completely). # In order to make hostapd interoperate with these clients, the version number # can be set to the older version (1) witgths are not set or are set to 0) # Key lengths for default/broadcast and individual/unicast keys: # 5 = 40-bit WEP (also known as 64-bit WEP with 40 secret bits) # 13 = 104-bit WEP (also known as 128-bit WEP with 104 secret bits) #wep_key_len_broadcast=5 #wep_key_len_unicast=5 # Rekeying period in seconds. 0 = do nd can be configured to use an integrated EAP server # to process EAP authentication locally without need for an external RADIUS # server. This functionality can be used both as a local authentication server # for IEEE 802.1X/EAPOL and as a RADIUS server for other devices. # Use integrated EAP server instead of external RADIUS authentication # server. This is also needed if hostapd is configured to act as a RADIUS # authentication server. eap_server=0 # Path for EAP server user database #eap_user_file=/etc/hostapd.eap_user # CA certificate (PEM or DER file) for EAP-TLS/PEAP/TTLS #ca_cert=/etc/hostapd.ca.pem # Server certificate (PEM or DER file) for EAP-TLS/PEAP/TTLS #server_cert=/etc/hostapd.server.pem # Private key matching with the server certificate for EAP-TLS/PEAP/TTLS # This may point to the same file as server_cert if both certificate te_key. #private_key=/etc/hostapd.server.prv # Passphrase for private key #private_key_passwd=secret passphrase # Enable CRL verification. # Note: hostapd does not yet support CRL downloading based on CDP. Thus, a # valid CRL signed by the CA is required to be included in the ca_cert file. # This can be done by using PEM format for CA certificate and CRL and # concatenating these into one file. Whenever CRL changes, hostapd needs to be # restarted to take the new CRL into use. # 0 achieve forward secrecy. If the file # is in DSA parameters format, it will be automatically converted into DH # params. This parameter is required if anonymous EAP-FAST is used. #dh_file=/etc/hostapd.dh.pem # Configuration data for EAP-SIM database/authentication gateway interface. # This is a text string in implementation specific format. The example # implementation in eap_sim_db.c uses this as the UNIX domain socket name for # the HLR/AuC gateway (e.g., hlr_auc_gw). In this case, the path uses "unix:" # prefix. #eap_sim_db=unix:/tmp/hlr_auc_gw.sock # Encryption key for EAP-FAST PAC-Opaque values. This key must be a secret, # random value. It is configured as a 16-octet value in hex format. It can be # generated, e.g., with the following command: # od -tx1 -v -N16 /dev/random | colrm 1 8 | tr -d ' ' #pac_opaque_encr_key=000102030405060708090a0b0c0d0e0f # EAP-FAST authority identity (A-ID) #eap_fast_a_id=test server # EAP-SIM and EAP-AKA protected success/failure indication using AT_RESULT_IND # (default: 0 = disabled). #eap_sim_aka_result_ind=1 # Trusted Network Connect (TNC) # If enabled, TNC validation will be required before the peer is allowed to # connect. Note: This is only used with EAP-TTLS and EAP-FAST. If any other # EAP method is enabled, the peer will be allowed to connect without TNC. #tnc=1 ##### IEEE 802.11f - Inter-Access Point Protocol (IAPP) ####################### # Interface to be used for IAPP broadcast packets #iapp_interface=eth0 ##### RADIUS client configuration ################ust be set and must be between 1 and # 48 octets long. #nas_identifier=ap.example.com # RADIUS authentication server #auth_server_addr=127.0.0.1 #auth_server_port=1812 #auth_server_shared_secret=secret # RADIUS accounting server #acct_server_addr=127.0.0.1 #acct_server_port=1813 #acct_server_shared_secret=secret # Secondary RADIUS servers; to be used if primary one does not reply to # RADIUS packets. These are optional and there can be more than one secondary # server listed. #auth_server_addr=127.0.0.2 #auth_server_port=1812 #auth_server_shared_secret=secret2 # #acct_server_addr=127.0.0.2 #acct_server_port=1813 #acct_server_shared_secret=secret2 # Retry interval for trying to return to the primary RADIUS server (in # seconds). RADIUS clients_retry_primary_interval=600 # Interim accounting update interval # If this is set (larger than 0) and acct_server is configured, hostapd will # send interim accounting updates every N sec not include VLAN ID # 2 = required; reject authentication if RADIUS server does not include VLAN ID #dynamic_vlan=0 # VLAN interface list for dynamic VLAN mode is read from a separate text file. # This list is used to map VLAN ID from the RADIUS server to a network # interface. Each station is bound to one interface in the same way as with # multiple BSSIDs or SSIDs. Each line in this text file is defining a new # interface and the line must include VLAN ID and interface name separated by # white space (space or tab). #vlan_file=/etc/hostapd.vlan # Interface where 802.1q tagged packets should appear when a RADIUS server is # used to determine which VLAN a station is on. hostapd creates a bridge for # each VLAN. Then hostapd adds a VLAN interface (associated with the interface # indicated by 'vlan_tagged_interface') and the appropriate wireless interface # to the bridge. #vlan_tagged_interface=eth0 ##### RADIUS auths a RADIUS authentication server for other hosts. This # requires that the integrated EAP server is also enabled and both # authentication services are sharing the same configuration. # File name of the RADIUS clients configuration for the RADIUS server. If this # commented out, RADIUS server is disabled. #radius_server_clients=/etc/hostapd.radius_clients # The UDP port number for the RADIUS authentication server in wpa_key_mgmt. # This field is a bit field that can be used to enable WPA (IEEE 802.11i/D3.0) # and/or WPA2 (full IEEE 802.11i/RSN): # bit0 = WPA # bit1 = IEEE 802.11i/RSN (WPA2) (dot11RSNAEnabled) wpa=0 # 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 (dot11RSNAConfigPSKValue) # wpa_passphrase (dot11RSNAConfigPSKPassPhrase) #wpa_psk=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef #wpa_passphrase=secret passphrase # Optionally, WPA PSKs can be read from a separate text file (containing list # of (PSK,MAC address) pairs. This allows more than one PSK to be configured. # Use absolute path namagement algorithms (WPA-PSK, WPA-EAP, or both). The # entries are separated with a space. # (dot11RSNAConfigAuthenticationSuitesTable) #wpa_key_mgmt=WPA-PSK WPA-EAP # Set of accepted cipher suites (encryption algorithms) for pairwise keys # (unicast packets). This is a space separated list of algorithms: # CCMP = AES in Counter mode with CBC-MAC [RFC 3610, IEEE 802.11i/D7.0] # TKIP = Temporal Key Integrity Protocol [IEEE 802.11i/D7.0] # Group cipher suite (encryption #wpa_group_rekey=600 # Rekey GTK when any STA that possesses the current GTK is leaving the BSS. # (dot11RSNAConfigGroupRekeyStrict) #wpa_strict_rekey=1 # Time interval for rekeying GMK (master key used internally to generate GTKs # (in seconds). #wpa_gmk_rekey=86400 # Enable IEEE 802.11i/RSN/WPA2 pre-authentication. This is used to speed up # roaming be pre-authenticating IEEE 802.1X/EAP part of the full RSN # authentication and key handshake before actually associating with a new AP. # (dot11RSNAPreauthenticationEnabled) #rsn_preauth=1 # # Space separated list of interfaces from which pre-authentication frames are # accepted (e.g., 'eth0' or 'eth0 wlan0wds0'. This list should include all # interface that are used ffaces=eth0 # peerkey: Whether PeerKey negotiation for direct links (IEEE 802.11e) is # allowed. This is only used with RSN/WPA2. # 0 = disabled (default) # 1 = enabled #peerkey=1 # ieee80211w: Whether management frame protection is enabled # 0 = disabled (default) # 1 = optional # 2 = required #ieee80211w=0 ##### IEEE 802.11r configuration ############################################## # Mobility Domain identifier (dot11FTMobilityDomainID, MDID) # MDID is used to indicate a group of APs (within an ESS, i.e., sharing the # sameholder=000102030405 # Reassociation deadline in time units (TUs / 1.024 ms; range 1000..65535) # (dot11FTReassociationDeadline) #reassociation_deadline=1000 # List of R0KHs in the same Mobility Domain # format: <128-bit key as hex string> # This list is used to map R0KH-ID (NAS Identifier) to a destination MAC # address when requesting PMK-R1 key from the R0KH that the STA used during the # Initial Mobility Domain Association. #r0kh=02:01:02:03:04:05 r0kh-1.example.com 000102030405060708090a0b0c0d0e0f #r0kh=02:01:02:03:04:06 r0kh-2.example.com 00112233445566778899aabbccddeeff # And so on.. One line per R0KH. # List of R1KHs in the same1kh=02:01:02:03:04:06 02:11:22:33:44:66 00112233445566778899aabbccddeeff # And so on.. One line per R1KH. # Whether PMK-R1 push is enabled at R0KH # 0 = do not push PMK-R1 to all configured R1KHs (default) # 1 = push PMK-R1 to all configured R1KHs whenever a new PMK-R0 is derived #pmk_r1_push=1 ##### Passive scanning ######################################################## # Scan different channels every N seconds. 0 = disable passive scanning. #passive_scan_interval=60 # Listen N usecs on each channel when doing passive scanning. #f entries kept in AP table (either for passive scanning or # for detecting Overlapping Legacy BSS Condition). The oldest entry will be # removed when adding a new entry that would make the list grow over this # limit. Note! Wi-Fi certification for IEEE 802.11g requires that OLBC is # enabled, so this field should not be set to 0 when using IEEE 802.11g. # default: 255 #ap_table_max_size=255 # Number of seconds of no frames received after which entries may be deleted # from the AP table. Since passive scanning is not usually performed frequently # this should not be set to very small value. In addition, there is no # guarantee that every scan cycle will rec allocated for the data packets of the new BSS. # # hostapd will generate BSSID mask based on the BSSIDs that are # configured. hostapd will verify that dev_addr & MASK == dev_addr. If this is # not the case, the MAC address of the radio must be changed before starting # hostapd (ifconfig wlaems, like channel) #bss=wlan0_1 #bssid=02:13:10:95:fe:0b # ...