Uplink Interfaces
Aruba Central supports 3GThird Generation of Wireless Mobile Telecommunications Technology. See W-CDMA. and 4GFourth Generation of Wireless Mobile Telecommunications Technology. See LTE. USBUniversal Serial Bus. USB is a connection standard that offers a common interface for communication between the external devices and a computer. USB is the most common port used in the client devices. modems, and the Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. uplink to provide access to the corporate network.
By default, the AP-318, AP-374, AP-375, and AP-377 access points have Eth1 as the uplink port and Eth0 as the downlink port. Aruba recommends you not to upgrade the mentioned access points to 8.5.0.0 and 8.5.0.1 firmware versions as the upgrade process changes the uplink from Eth1 to Eth0 port thereby making the devices non-reachable.
The following types of uplinks are supported on Aruba Central:
Aruba Central supports the use of 3G/4G USB modems to provide the Internet back haul to Aruba Central. The 3G/4G USB modems can be used to extend client connectivity to places where an EthernetEthernet is a network protocol for data transmission over LAN. uplink cannot be configured. This enables the Instant APs to automatically choose the available network in a specific region.
Types of Modems
Aruba Central supports the following three types of 3G modems:
True Auto Detect—Modems of this type can be used only in one country and for a specific ISPInternet Service Provider. An ISP is an organization that provides services for accessing and using the Internet.. The parameters are configured automatically and hence no configuration is necessary.
Auto-detect + ISP/country—Modems of this type require the user to specify the Country and ISP. The same modem is used for different ISPs with different parameters configured for each of them.
No Auto Detect—Modems of this type are used only if they share the same Device-ID, Country, and ISP details. You need to configure different parameters for each of them. These modems work with Aruba Central when the appropriate parameters are configured.
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Modem Type |
Supported 4G Modem |
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Pantech UML290 Ether-lte |
When UML290 runs in auto detect mode, the modem can switch from 4G network to 3G network or vice-versa based on the signal strength. To configure the UML290 for the 3G network only, manually set the USB type to . To configure the UML290 for the 4G network only, manually set the 4G USB type to .
Configuring Cellular Uplink Profiles
To configure 3G or 4G uplinks using Aruba Central, complete the following steps:
1. In the app, set the filter to a group that contains at least one AP.
Before you begin, obtain the modem configuration parameters from the local IT administrator or the modem manufacturer.
The dashboard context for the group is displayed.
2. Under , click > .
A list of access points is displayed in the view.
3. Click the icon.
The tabs to configure the access points are displayed.
4. Click , and click the tab.
The Interfaces details page is displayed.
5. Click the accordion.
6. Under , perform any of the following steps:
To configure a 3G or 4G uplink automatically, select the Country and ISP. The parameters are automatically populated.
To configure a 3G or 4G uplink manually, perform the following steps:
a. Select the country from the drop-down list.
b. Select the service protocol from the drop-down list.
c. Enter the type of the 3G/4G modem driver type:
For 3G—Enter the type of 3G modem in the text box.
For 4G—Enter the type of 4G modem in the text box.
d. Enter the device ID of modem in the USB DEV text box.
e. Enter the TTYTeleTypeWriter. TTY-enabled devices allow telephones to transmit text communications for people who are deaf or hard of hearing as well as transmit voice communication. port of the modem in the USB TTY text box.
f. Enter the parameter to initialize the modem in the USB INIT text box.
g. Enter the parameter to dial the cell tower in the USB Dial text box.
h. Enter the parameter used to switch a modem from the storage mode to modem mode in the USB Mode Switch text box.
i. Select the USB authentication type from the drop-down list.
j. Enter the username used to dial the ISP in the USB User text box.
k. Enter the password used to dial the ISP in the USB Password text box.
7. Click .
8. Reboot the Instant AP for changes to affect.
Ethernet Uplink
The Ethernet 0 port on an Instant AP is enabled as an uplink port by default. The Ethernet uplink supports the following:
You can use for your uplink connectivity in a single AP deployment.
Uplink redundancy with the link is not supported.
When the Ethernet link is up, it is used as a PPPoEPoint-to-Point Protocol over Ethernet. PPPoE is a method of connecting to the Internet, typically used with DSL services, where the client connects to the DSL modem. or DHCPDynamic 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. uplink. After the PPPoE settings are configured, PPPoE has the highest priority for the uplink connections. The Instant AP can establish a PPPoE session with a PPPoE server at the ISP and get authenticated using PAPPassword Authentication Protocol. PAP validates users by password. PAP does not encrypt passwords for transmission and is thus considered insecure. or the CHAPChallenge Handshake Authentication Protocol. CHAP is an authentication scheme used by PPP servers to validate the identity of remote clients.. Depending upon the request from the PPPoE server, either the PAP or the CHAP credentials are used for authentication. After configuring PPPoE, reboot the Instant AP for the configuration to take effect. The PPPoE connection is dialed after the AP comes up. The PPPoE configuration is checked during Instant AP boot and if the configuration is correct, Ethernet is used for the uplink connection.
When PPPoE is used, do not configure Dynamic RADIUSRemote Authentication Dial-In User Service. An Industry-standard network access protocol for remote authentication. It allows authentication, authorization, and accounting of remote users who want to access network resources. Proxy and IP address of the VC. An SSIDService Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network. created with default VLANVirtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. is not supported with PPPoE uplink
You can also configure an alternate Ethernet uplink to enable uplink failover when an Ethernet port fails.
Configuring PPPoE Uplink Profile
To configure PPPoE settings, complete the following steps:
1. In the app, set the filter to a group that contains at least one AP.
The dashboard context for the group is displayed.
2. Under , click > .
A list of access points is displayed in the view.
3. Click the icon.
The tabs to configure the access points are displayed.
4. Click , and click the tab.
The Interfaces details page is displayed.
5. Click the accordion.
6. Under , configure the following parameters:
a. Enter the PPPoE service name provided by your service provider in the .
b. In the and fields, enter the secret key used for CHAP authentication. You can use a maximum of 34 characters for the CHAP secret key.
c. To set a local interface for the PPPoE uplink connections, select a value from . The selected DHCP scope is used as a local interface on the PPPoE interface and the Local, L3 DHCP gateway IP address as its local IP address. When configured, the local interface acts as an unnumbered PPPoE interface and allocated the entire Local, L3 DHCP subnetSubnet is the logical division of an IP network. to the clients.
d. Enter the user name for the PPPoE connection in the field.
e. In the and fields, enter a password for the PPPoE connection and confirm it.
The options in are displayed only if a Local, L3 DHCP scope is configured on the Instant AP.
7. Click .
8. Reboot the Instant AP.
Wi-Fi Uplink
The Wi-Fi uplink is supported for all Instant AP models, except 802.11ac APs. Only the master Instant AP uses the Wi-Fi uplink. The Wi-Fi allows uplink to open, PSK-CCMP, and PSK-TKIP SSIDs.
For single radio Instant APs, the radio serves wireless clients and Wi-Fi uplink.
For dual radio Instant APs, both radios can be used to serve clients but only one of them can be used for Wi-Fi uplink.
When Wi-Fi uplink is in use, the client IP is assigned by the internal DHCP server.
Configuring a Wi-Fi Uplink Profile
The following configuration conditions apply to the Wi-Fi uplink:
To bind or unbind the Wi-Fi uplink on the 5 GHzGigahertz. bandBand refers to a specified range of frequencies of electromagnetic radiation., reboot the Instant AP.
If Wi-Fi uplink is used on the 5 GHz band, mesh is disabled. The two links are mutually exclusive.
To provision an Instant AP with Wi-Fi Uplink, complete the following steps:
1. In the app, set the filter to a group that contains at least one AP.
The dashboard context for the group is displayed.
2. Under , click > .
A list of access points is displayed in the view.
3. Click the icon.
The tabs to configure the access points are displayed.
4. Click , and click the tab.
The Interfaces details page is displayed.
5. Click the accordion.
6. Under , enter the name of the wireless network that is used for Wi-Fi uplink in the box.
7. From , select the type of key for uplink encryption and authentication. If the uplink wireless router uses mixed encryption, WPAWi-Fi Protected Access. WPA is an interoperable wireless security specification subset of the IEEE 802.11 standard. This standard provides authentication capabilities and uses TKIP for data encryption.-2 is recommended for Wi-Fi uplink.
8. From , select the band in which the VC currently operates. The following options are available:
9. From , select a . The following options are available:
Ensure that the hexadecimal password string is exactly 64 digits in length.
10. Enter a PSKPre-shared key. A unique shared secret that was previously shared between two parties by using a secure channel. This is used with WPA security, which requires the owner of a network to provide a passphrase to users for network access. passphrase in and click .
11. Click .
