Hotspot 2.0 Overview

ArubaOS supports Hotspot 2.0 with enhanced network discovery and selection. Clients can receive general information about the network identity, venue and type via management frames from the Aruba AP. Clients can also query APs for information about the network’s available IP address type (IPv4 or IPv6), roaming partners, and supported authentication methods, and receive that information in Information Elements from the AP.

Generic Advertisement Service (GAS) Queries

An Organization Identifier (OI) is a unique identifier assigned to a service provider when it registers with the IEEE registration authority. An Aruba AP can include its service provider OI in beacons and probe responses to clients. If a client recognizes an AP’s OI, it will attempt to associate to that AP using the security credentials corresponding to that service provider.

If the client does not recognize the AP’s OI, that client can send a Generic Advertisement Service (GAS) query to the AP to request more information more about the network before associating.

ANQP Information Elements

ANQP Information Elements (IEs) are additional data that can be sent from the AP to the client to identify the AP’s network and service provider. If a client requests this information via a GAS query, the hotspot AP then sends the ANQP Capability list in the GAS Initial Response frame indicating support for the following IEs. If the client responds with a request for a specific IE, the AP will send a GAS response frame with the configured ANQP IE information.

Venue Name: the Venue Name IE defines the venue group and venue type.
Domain Name: this IE specifies the AP’s domain name.
Network Authentication Type: if the network has Additional Steps required for Access (ASRA), this profile defines the authentication type being used by the hotspot network.
Roaming Consortium List: roaming Consortium Information Elements (IEs) contain information identifying the network and service provider, whose security credentials can then be used to authenticate with the AP transmitting this element.
IP address Availability: this IE provides clients with information about the availability of IP address versions and types which could be allocated to those clients after they associate to the hotspot AP.
NAI Realm: an AP’s NAI Realm profile identifies and describes a NAI realm accessible using the AP, and the method that this NAI realm uses for authentication.
3GPP Cellular Network Data: defines information for a 3rd Generation Partnership Project (3GPP) Cellular Network for hotspots that have roaming relationships with cellular operators.
Connection Capability: define hotspot protocol and port capabilities to be sent in an ANQP IE.
Operating Class: use this profile to define the channels on which the hotspot is capable of operating.
Operator Friendly Name: a free-form text field that can identify the operator and also something about the location.
WAN Metrics: provides hotspot clients information about access network characteristics such as link status and the capacity and speed of the WAN link to the Internet.

Hotspot Profile Types

ArubaOS supports several different ANQP and H2QP profile types for defining Hotspot data. The following table describes the profiles in the Hotspot profile set.

Table 1: ANQP and H2QP Profiles referenced by an Advertisement Profile

Profile

Description

Hotspot Advertisement profile

An advertisement profile defines a collection of ANQP and H2QP profiles. Each hotspot 2.0 profile is associated with one advertisement profile, which in turn references one of each type of ANQP and H2QP profile.

For more information on configuring this profile, refer to Configuring Hotspot Advertisement Profiles

ANQP 3GPP Cellular Network profile

Use this profile to define priority information for a 3rd Generation Partnership Project (3GPP) Cellular Network used by hotspots that have roaming relationships with cellular operators.

For more information on configuring this profile, refer to Configuring ANQP 3GPP Cellular Network Profiles

ANQP Domain Name profile

Use this profile to specify the hotspot operator domain name.

For more information on configuring this profile, refer to Configuring Hotspot Advertisement Profiles

ANQP IP Address Availability profile

Use this profile to specify the types of IPv4 and IPv6 IP addresses available in the hotspot network.

For more information on configuring this profile, refer to Configuring ANQP IP Address Availability Profiles

ANQP NAI Realm profile

An AP’s NAI Realm profile identifies and describes a Network Access Identifier (NAI) realm accessible using the AP, and the method that this NAI realm uses for authentication.

For more information on configuring this profile, refer to Configuring ANQP NAI Realm Profiles

ANQP Network Authentication profile

Use the ANQP Network Authentication profile to define the authentication type used by the hotspot network.

For more information on configuring this profile, refer to Configuring ANQP Network Authentication Profiles.

ANQP Roaming Consortium profile

Name of the ANQP Roaming Consortium profile to be associated with this WLAN advertisement profile.

For more information on configuring this profile, refer to Configuring ANQP Roaming Consortium Profiles

ANQP Venue Name profile

Use this profile to specify the venue group and venue type information be sent in an Access network Query Protocol (ANQP) information element in a Generic Advertisement Service (GAS) query response.

For more information on configuring this profile, refer to Configuring ANQP Venue Name Profiles.

H2QP Connection Capability profile

Use this profile to specify hotspot protocol and port capabilities.

For more information on configuring this profile, refer to Configuring H2QP Connection Capability Profiles

H2QP Operating Class Indication profile

Use this profile to specify the channels on which the hotspot is capable of operating

For more information on configuring this profile, refer to Configuring H2QP Operating Class Indication Profiles

H2QP Operator Friendly Name profile

Use this profile to define the operator-friendly name sent by devices using this profile.

For more information on configuring this profile, refer to Configuring H2QP Operator Friendly Name Profiles

H2QP WAN Metrics profile

Use this profile to specify the WAN status and link metrics for your hotspot.

For more information on configuring this profile, refer to Configuring H2QP WAN Metrics Profiles