Configure the Managed Device to Support APs

Before you install APs in a network environment, you must ensure that the APs will be able to locate and connect to the managed device when powered on. Specifically, you need to ensure the following:

When connected to the network, each AP is assigned a valid IP address

APs are able to locate the managed devices

Each Aruba AP requires a unique IP address on a subnetwork that has connectivity to a managed device. Aruba recommends using the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  to provide IP addresses for APs; the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server can be an existing network server or an Aruba managed device configured as a DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server.

If an AP is on the same subnetwork as the Mobility Master, you can configure the managed device as a DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server to assign an IP address to the AP. The managed device must be the only DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server for this subnetwork.

Enable DHCP Server Capability

Use the following procedure to use the WebUI to enable DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server capability:

1. Enter the IP address of the managed device in the URL Uniform Resource Locator. URL is a global address used for locating web resources on the Internet. of a browser window to access the WebUI.

2. At the WebUI login page, enter the admin user name and the password you entered during the Initial Setup.

3. Navigate to the Configuration > Services window.

4. Open the DHCP Server tab.

5. Select Enable from either IPv4 or IPv6 DHCP server drop-down list.

6. In the Pool Configuration table, click +.

7. Enter information about the subnetwork for which IP addresses are to be assigned.

8. Click Submit.

9. If there are addresses that should not be assigned in the subnetwork:

a. Click + in the Excluded Address Range section.

b. Enter the address range in the Add Excluded Address section.

c. Click Submit.

10. Click Pending Changes.

11. In the Pending Changes window, select the check box and click Deploy changes.

Managed Device Discovery

An Aruba AP can discover the IP address of the manage device in one of several ways. The ADP Aruba Discovery Protocol. ADP is an Aruba proprietary Layer 2 protocol. It is used by the APs to obtain the IP address of the TFTP server from which it downloads the AP boot image. is enabled by default on all Aruba APs and managed devices. If all APs and managed devices are connected to the same Layer-2 network, APs will use ADP Aruba Discovery Protocol. ADP is an Aruba proprietary Layer 2 protocol. It is used by the APs to obtain the IP address of the TFTP server from which it downloads the AP boot image. to discover their managed devices. If the devices are on different networks, you must configure the AP to use a Layer-3 compatible discovery mechanism such as DNS Domain Name System. A DNS server functions as a phone book for the intranet and Internet users. It converts human-readable computer host names into IP addresses and IP addresses into host names. It stores several records for a domain name such as an address 'A' record, name server (NS), and mail exchanger (MX) records. The Address 'A' record is the most important record that is stored in a DNS server, because it provides the required IP address for a network peripheral or element., DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network. , or IGMP Internet Group Management Protocol. Communications protocol used by hosts and adjacent routers on IP networks to establish multicast group memberships. forwarding after installing the AP on the network. For details, refer to the ArubaOS 8.3.0.0 User Guide.

With ADP Aruba Discovery Protocol. ADP is an Aruba proprietary Layer 2 protocol. It is used by the APs to obtain the IP address of the TFTP server from which it downloads the AP boot image., APs send out periodic multicast and broadcast queries to locate the . If the APs are in the same broadcast domain as the managed device, the managed device automatically responds to the APs’ queries with its IP address. If the APs are not in the same broadcast domain as the managed device, you need to enable multicast on the network. If multicast is not an option, then the APs can be configured to use DNS Domain Name System. A DNS server functions as a phone book for the intranet and Internet users. It converts human-readable computer host names into IP addresses and IP addresses into host names. It stores several records for a domain name such as an address 'A' record, name server (NS), and mail exchanger (MX) records. The Address 'A' record is the most important record that is stored in a DNS server, because it provides the required IP address for a network peripheral or element. or DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  based provisioning to contact the managed device.

As APs do not terminate on the Mobility Master in ArubaOS 8.3.0.0, they are pointed to a managed device that has the configuration for the AP's AP-group.

Install the APs

Refer to the AP placement map generated by RF Radio Frequency. RF refers to the electromagnetic wave frequencies within a range of 3 kHz to 300 GHz, including the frequencies used for communications or Radar signals. Plan to identify the locations in which to physically install your APs. You can either connect the AP directly to a port on the managed device, or connect the AP to another switch or router that has Layer-2 or Layer-3 connectivity to the managed device. If the Ethernet Ethernet is a network protocol for data transmission over LAN. port on the managed device is an 802.3af 802.3af is an IEEE standard for Power over Ethernet (PoE) version that supplies up to 15.4W of DC power. See PoE. PoE Power over Ethernet. PoE is a technology for wired Ethernet LANs to carry electric power required for the device in the data cables. The IEEE 802.3af PoE standard provides up to 15.4 W of power on each port. port, the AP automatically uses it to power up. If a PoE Power over Ethernet. PoE is a technology for wired Ethernet LANs to carry electric power required for the device in the data cables. The IEEE 802.3af PoE standard provides up to 15.4 W of power on each port. port is not available, contact your Aruba vendor to obtain an AC Access Category. As per the IEEE 802.11e standards, AC refers to various levels of traffic prioritization in Enhanced Distributed Channel Access (EDCA) operation mode. The WLAN applications prioritize traffic based on the Background, Best Effort, Video, and Voice access categories. AC can also refer to Alternating Current, a form of electric energy that flows when the appliances are plugged to a wall socket. adapter for the AP.

Once an AP is connected to the network and powered up, it will automatically attempt to locate the managed device. You can view a list of all APs connected to the managed device by accessing the Configuration > Access Points page in the WebUI of the Mobility Master. An AP installed on the network advertises its default SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.. Wireless users can connect to this SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network., but will not have access to the network until you configure authentication policies and user roles for your wireless users. For complete details on authentication policies and user roles, refer to the ArubaOS 8.3.x.x User Guide.