Interworking is the occurrence of two or more things working together. For devices to work successfully together information must be supplied from one to other. In order to supply more information between access points and client devices than in basic beacons and probe requests, in 2011 new protocol was made: IEEE Std 802.11u™-2011: Interworking with External Networks. With Interworking service network discovery and access point selection process can be enhanced. Client devices can have more criteria upon which to choose the network with which to associate.
Hotspot 2.0 is a specification developed and owned by Wi-Fi Alliance. It was designed to enable a more cellular-like experience when connecting to Wi-Fi networks. In the attempt to increase wireless network security Hotspot 2.0 access points use mandatory WPA2 authentication.
Hotspot 2.0 relies tightly on interworking as well as ads some of its own properties and procedures.
In RouterOS implementation of Interworking and Hotspot 2.0 stick very closely to the standard.
|3gpp (octet string in hex; Default: )||Cellular network advertisement information - country and network codes. This helps Hotspot 2.0 client in the selection of an access point to access 3GPP network. Please see 3GPP TS 24.302. (Annex H) for a format of this field. This value is sent ANQP response if queried.|
|asra (yes | no; Default: no)||Additional Steps Required for Access. Set to
||This property is only effective when asra is set to
|comment (string; Default: )||Short description of the profile|
|connection-capabilities (number:number:closed|open|unknown; Default: )||This option allows to provide information about allowed IP protocols and ports. This information can be provided in ANQP response. The first number represents the IP protocol number, the second number represents a port number.
Setting such value access point informs station, that is connecting, that HTTP(6 - TCP, 80 - HTTP) is allowed and VoIP (17 - UDP; 5060 - VoIP) is not allowed.This property does not restrict or allow these protocols and ports, it only gives information to station device which is connecting to access point.
|domain-names (list of strings; Default: )||None or more fully qualified domain names (FQDN) that indicate the entity operating the hotspot. A station that is connecting to the access point can request this AQNP property and check if there is a suffix match with any of the domain names it has credentials to.|
|esr (yes | no; Default: no)||Emergency services reachable (ESR). Set to
|hessid (MAC address; Default: )||Homogenous extended service set identifier (HESSID). Devices that provide access to same external networks are in one homogenous extended service set. This service set can be identified by HESSID that is the same on all access points in this set. 6-byte value of HESSID is represented as MAC address. It should be globally unique, therefore it is advised to use one of the MAC address of access point in the service set.|
|hotspot20 (yes | no; Default: yes)||Indicate Hotspot 2.0 capability of the access point.|
|hotspot20-dgaf (yes | no; Default: yes)||Downstream Group-Addressed Forwarding (DGAF). Whether to disable or enable multicast and broadcast frames to clients.
|internet (yes | no; Default: yes)||Weather internet is available through this connection or not. This information is included in the interworking element.|
|ipv4-availability (double-nated | not-available | port-restricted | port-restricted-double-nated | port-restricted-single-nated | public | single-nated | unknown; Default: not-available)||Information about what IPv4 address and access are available.
|ipv6-availability (available | not-available | unknown; Default: not-available)||Information about what IPv6 address and access are available.
|name (string; Default: )||Name of interworking profile.|
|network-type (emergency-only | personal-device | private | private-with-guest | public-chargeable | public-free | test | wildcard; Default: wildcard)||Information about network access type.
|operational-classes (list of numbers; Default: )||Information about other available bands of the same ESS.|
|operator-names (string:lang; Default: )||Set operator name. Language must be specified for each operator name entry.
Operator-names parameter consists of zero or more duples that contain Operator Name and Language Code:
operator-names=BestOperator:eng,MejorOperador:esThe Language Code field value is a two or three-character 8 language code selected from ISO-639.
|realms (string:eap-sim|eap-tls|not-specified; Default: )||Information about supported realms and the corresponding EAP method.
|realms-raw (octet string in hex; Default: )||Set NAI Realm ANQP-element manually.|
|roaming-ois (octet string in hex; Default: )||Organization identifier (OI) usually are 24-bit is unique identifiers like organizationally unique identifier (OUI) or company identifier (CID). In some cases, OI is longer for example OUI-36.
A subscription service provider (SSP) can be specified by its OI.
|uesa (yes | no; Default: no)||Unauthenticated emergency service accessible (UESA).
|venue (venue; Default: unspecified)||Specify the venue in which the access point is located. Choose the value from available ones. Some examples:
venue=business-bank venue=mercantile-shopping-mall venue=educational-university-or-college
|venue-names (string:lang; Default: )||Venue name can be used to provide additional info on the venue. It can help the client to choose a proper access point.
Venue-names parameter consists of zero or more duples that contain Venue Name and Language Code:
venue-names=CoffeeShop:eng,TiendaDeCafe:esThe Language Code field value is a two or three-character 8 language code selected from ISO-639.
|wan-at-capacity (yes | no; Default: no)||Whether the access point or network is at its max capacity. If set to yes no additional mobile devices will be permitted to associate to the AP.|
|wan-downlink (number; Default: 0)||The downlink speed of WAN connection set in kbps. If downlink speed is not known, set to 0.|
|wan-downlink-load (number; Default: 0)||The downlink load of WAN connection measured over
|wan-measurement-duration (number; Default: 0)||Duration during which
|wan-status (down | reserved | test | up; Default: reserved)||Information about the status of access points WAN connection. The value
|wan-symmetric (yes | no; Default: no)||Weather WAN link is symmetric (upload and download speeds are the same) or not.|
|wan-uplink (number; Default: 0)||The uplink speed of WAN connection set in kbps. If uplink speed is not known set to 0.|
|wan-uplink-load (number; Default: 0)||The uplink load of WAN connection measured over