Wi-Fi Array Mount the Array 8. Mount the Wi-Fi Array to the Wall Mounting Bracket by positioning the key post (on the underside of the mounting bracket) into the key receptacle on the underside of the Array. When the key post is properly located, gently turn the Array in a clockwise direction to secure the Array to the mounting plate. Key Post (Mounting Bracket) Receptacle Figure 55.
Wi-Fi Array Removing the Array To remove the Array from the Wall Mount Assembly, simply apply a little upward pressure to the Array, then gently turn the Array in a counterclockwise direction to release the unit from the bracket.
Wi-Fi Array Array LED Operating Sequences Use the following tables to review the operating sequences of the Array’s LEDs.
Wi-Fi Array LED Operation when Array is Running The normal LED operation when the Array is running is as follows: LED Status IAP LED is OFF IAP LED is solid ON Reason IAP is down IAP is up, but no associations and no traffic IAP LED heartbeat IAP is up, with stations associated but no traffic IAP LED flashing IAP is up, passing traffic Flashing at 10 Hz Flashing at 5 Hz Flashing at 2.
Wi-Fi Array Establishing Communication with the Array The Array can be configured through the Command Line Interface (CLI) or the graphical Web Management Interface (WMI). You can use the CLI via the serial management port, the Fast Ethernet port, or either of the Gigabit Ethernet ports. You can use the WMI via any of the Array’s Ethernet ports. Serial Fast Ethernet Gigabit 1 Gigabit 2 Figure 57.
Wi-Fi Array Logging In When logging in to the Array, use the default user name and password—the default user name is admin, and the default password is admin.
Wi-Fi Array Performing the Express Setup Procedure The Express Setup procedure establishes global configuration settings that enable basic Array functionality. Changes made in this window will affect all radios. Figure 58. Express Setup Procedure for Performing an Express Setup 1. 112 Host Name: Specify a unique host name for this Array. The host name is used to identify the Array on the network. Use a name that will be meaningful within your network environment, up to 64 alphanumeric characters.
Wi-Fi Array 2. Location Information: Enter a brief but meaningful description that accurately defines the physical location of the Array. In an environment where multiple units are installed, clear definitions for their locations are important if you want to identify a specific unit. 3. Admin Contact: Enter the name and contact information of the person who is responsible for administering the Array at the designated location. 4.
Wi-Fi Array number of IP addresses that are available on the routed subnet where the Array is located. z 8. Default Gateway: Enter a valid IP address for the default gateway. This is the IP address of the router that the Array uses to forward data to other networks. SSID Settings: This section specifies the wireless network name and security settings. a. SSID (Wireless Network Name): The SSID (Service Set Identifier) is a unique name that identifies a wireless network.
Wi-Fi Array assurance that only authorized users can access their wireless networks. Like WPA, WPA2 is designed to secure all versions of 802.11 devices, including 802.11a, 802.11b, 802.11g, and 802.11n, multi-band and multi-mode. • WPA-Both (WPA and WPA2)—This option makes use of both WPA and WPA2. For more information about security, including a full review of all security options and settings, go to “Understanding Security” on page 208. c.
Wi-Fi Array time-stamping is maintained across all units. Without an NTP server assigned (no universal clock), each Array will use its own internal clock and stamp times accordingly, which may result in discrepancies. If you check Yes, the NTP server fields are displayed. If you don’t want to use an NTP server, leave this box unchecked (default) and set the system time on the Array manually. c. NTP Primary Server: If you are using NTP, enter the IP address or domain name of the NTP server. d.
Wi-Fi Array 11. IAP Settings: Enable/Configure All IAPs: Click on the Execute button to enable and auto configure all IAPs (a message displays the countdown time—in seconds—to complete the auto-configuration task). When an IAP is enabled, its LED is switched on. LED on Figure 59. LEDs are Switched On 12. Click on the Apply button to apply the new settings to this session 13. Click on the Save button to save your changes (otherwise your new settings will not take effect).
Wi-Fi Array 118 Installing the Wi-Fi Array
Wi-Fi Array The Web Management Interface This topic provides an overview of the Xirrus Wi-Fi Array’s embedded Web Management Interface (WMI), used for establishing your network’s configuration settings and wireless operating parameters. It also includes login instructions.
Wi-Fi Array An Overview The WMI is an easy-to-use graphical interface to your Wi-Fi Array. It allows you to configure the product to suit your individual requirements and ensure that the unit functions efficiently and effectively. Figure 60.
Wi-Fi Array Structure of the WMI The content of the WMI is organized by function and hierarchy, shown in the following table. Click on any item below to jump to the referenced destination.
Wi-Fi Array Statistics Windows IAP Statistics Summary Per-IAP Statistics Network Statistics VLAN Statistics WDS Statistics Filter Statistics Station Statistics Per-Station Statistics 122 System Log Window Tool Windows System Tools CLI Logout The Web Management Interface
Wi-Fi Array User Interface The WMI has been designed with simplicity in mind, making navigation quick and easy. In the following example, you’ll see that windows are divided into left and right frames. Left frame Right frame Array info Message counters Click to configure/view statistics Pull-down menu Figure 61.
Wi-Fi Array The left frame contains three main elements: z Configuration menu organized by function (for example, radio interfaces, security, etc.). Click the heading to display a summary of its current configuration, as well as an associated pull-down menu. z Three counters are located at the bottom of the menu. They provide a running total of messages generated by the ArrayOS Syslog subsystem during your session—organized into Critical, Warning, and General messages.
Wi-Fi Array z Click on the Feedback button to generate a Web page that allows you to submit your comments to Xirrus, Inc. You can also access the feedback page at http://www.xirrus.com/public/feedback/. Refer to Figure 63 on page 125 to see a sample of the feedback form. z Click on the Print button to send a print file of the active window to your local printer. z Click on the Help button to access the Array’s online help system.
Wi-Fi Array Logging In Use this procedure to log in to the WMI via your Web browser. 1. Establish a network connection and open your Web browser. 2. Connect to the Wi-Fi Array via its default IP address (10.0.2.1 for both Gigabit 1 and Gigabit 2 Ethernet ports) or via a DHCP assigned IP address. 3. To log in to the Array’s Web Management Interface, enter admin when prompted for a user name and password. Figure 64.
Wi-Fi Array Viewing Status on the Wi-Fi Array These windows provide status information and statistics for your Array using the product’s embedded Web Management Interface (WMI). You cannot make configuration changes to your Array from these windows. The following topics have been organized into functional areas that reflect the flow and content of the Status section of the navigation tree in the left frame of the WMI.
Wi-Fi Array Array Summary This is a status only window that provides a snapshot of the global configuration settings for all Wi-Fi Array network interfaces and IAPs. You must go to the appropriate configuration window to make changes to any of the settings displayed here—configuration changes cannot be made from this window. Clicking on an interface or IAP will take you to the proper window for making configuration changes. Figure 65.
Wi-Fi Array Content of the Array Summary Window The Array Summary window is sub-divided into the Ethernet Interfaces section and the Integrated Access Points (radio) section, providing you with the following information: z z Ethernet Interfaces Section This section provides information about network interface devices. To make configuration changes to these devices, go to “Network Interfaces” on page 181.
Wi-Fi Array • State: Shows the current state of each IAP, either up or down. IAPs that are down are shown in RED. Figure 66 shows an example where IAP a3 is down. Figure 66. Disabled IAP (Partial View) 130 • Channel: Shows which channel each IAP is using, and the channel setting. To avoid co-channel interference, adjacent radios should not be using adjacent channels. To make channel selections for a specific IAP, go to “IAP Settings” on page 254.
Wi-Fi Array Figure 67. IAP Cells • Tx Power: Shows the transit power for each IAP. • Rx Threshold: Shows the receive threshold for each IAP. • Stations: Informs you how many client stations are currently associated with each IAP. The high-capacity XN16, XS16, or XS-3900 can handle up to 64 concurrent users per individual IAP (1024 users per Array, or 960 when the monitor abg(n)2 is enabled). • WDS Link: The WDS Link on this radio (if any). See “WDS” on page 285.
Wi-Fi Array Array Information This is a status only window that shows you the current firmware versions utilized by the Array, the serial numbers assigned to each module, and MAC addresses. You cannot make configuration changes in this window, but if you are experiencing issues with network services, you may want to print the content of this window for your records. Figure 68.
Wi-Fi Array z Factory—displays the configuration established at the factory. Figure 69. Show Configuration If you want to see just the differences between the Running, Saved, Lastboot, and Factory configurations, you can do this by choosing a configuration option from the Select Config pull-down menu then selecting an alternative configuration option from the Select Diff pull-down menu. You also have the option of including the default configuration settings in the output.
Wi-Fi Array Admin History It is useful to know who else is currently logged in to an array while you're configuring it. It's also nice to see who has logged in since the array booted. This status-only window shows you all administrator logins to the Array that have occurred since the last reboot. To determine who is currently logged in, check which entries say active in the Logout Time column. Figure 70.
Wi-Fi Array Network Map This window offers detailed information about this Array and all neighboring Arrays, including how the Arrays have been set up within your network. Refresh Figure 71. Network Map You may sort the rows based on any column that has an active column header, indicated when the mouse pointer changes to the hand icon . Click Refresh to update the information at any time. Click Auto Refresh to instruct the Array to refresh this window automatically.
Wi-Fi Array z IAPs Total: The number of IAPs on the Array. z IAPs Up: Informs you how many IAPs are currently up and running. To enable or disable all IAPs, go to “Express Setup” on page 174. To enable or disable individual IAPs, go to “IAP Settings” on page 254. z SSIDs: Informs you how many SSIDs have been assigned for the Array. To assign an SSID, go to “SSID Management” on page 238. z Active SSIDs: Informs you how many SSIDs are enabled.
Wi-Fi Array link by activating the standby path. The spanning tree function is transparent to client stations. Figure 72. Spanning Tree Status This window shows the spanning tree status (forwarding or blocked) for path segments that terminate on this Array. You may sort the rows based on the VLAN Name or Number columns by clicking the column header. Click Refresh to update the information at any time. Click Auto Refresh to instruct the Array to refresh this window automatically.
Wi-Fi Array Routing Table This status-only window lists the entries in the Array’s routing table. The table provides the Array with instructions for sending each packet to its next hop on its route across the network. Figure 73. Routing Table See Also VLANs Configuring VLANs on an Open SSID ARP Table This status-only window lists the entries in the Array’s ARP table. For a device with a given IP address, this table lists the device’s MAC address.
Wi-Fi Array See Also Routing Table ARP Filtering DHCP Leases This status-only window lists the IP addresses (leases) that the Array has allocated to client stations. For each, it shows the IP address assigned from one of the defined DHCP pools, and the MAC address and host name of the client station. The start and end time of the lease show how long the allocation is valid. The same IP address is normally renewed at the expiration of the current lease. Figure 75.
Wi-Fi Array You may sort the rows based on any column that has an active column header, indicated when the mouse pointer changes to the hand icon . Click Refresh to update the information at any time. Click Auto Refresh to instruct the Array to refresh this window automatically. See Also Filters CDP Neighbors This status-only window lists devices on the Array’s network that support the Cisco Discovery Protocol (CDP). The Array performs discovery on the network on an ongoing basis.
Wi-Fi Array RF Monitor Windows Every Wi-Fi Array includes an integrated RF spectrum analyzer as a standard feature. The spectrum analyzer allows you to characterize the RF environment by monitoring throughput, signal, noise, errors, and interference levels continually per channel. This capability uses the built-in threat-sensor radio abg(n)2. The associated software is part of the ArrayOS.
Wi-Fi Array IAPs The RF Monitor—IAPs window displays traffic statistics and RF readings observed by each Array IAP (radio). Note that the data is an instantaneous snapshot for the IAP—it is not an average or a cumulative total. Figure 78. RF Monitor—IAPs Figure 78 presents the data as a graphical display, enabled by selecting the Graph checkbox on the lower left. If this option is not selected, data is presented as a numerical table.
Wi-Fi Array Spectrum Analyzer # The RF measurements for this feature are obtained by IAP abg(n)2, which must be set to monitor mode for any data to be available. See “IAP Settings” on page 254. Spectrum analysis on Wi-Fi Arrays is a distributed capability that automatically covers the entire Wi-Fi network, since a sensor is present in every unit. Arrays monitor the network 24/7 and analyze interference anywhere in the network from your desk.
Wi-Fi Array Click Channel number to highlight Select Display Options Figure 79.
Wi-Fi Array The Spectrum Analyzers offers several display options: z To display horizontal bar graphs, click the Rotate checkbox at the bottom of the data window. z In the rotated view, if you wish to view data as a numerical table, click the Text checkbox. Click again to return to a graphical display. The text option is only available in the rotated view. z When viewing a graphical display, click Bars to have the bar graphs displayed against a gray background—you may find this easier on the eyes.
Wi-Fi Array 146 z Signal to Noise: Average SNR (signal to noise ratio) seen on the channel, calculated from the signal seen on valid 802.11 packets less the noise floor level. A dash value “-“ means no SNR data was available for the interval. z Noise Floor: Average noise floor reading seen on the channel (ambient noise). A dash value “-“ means no noise data was available for the interval. z Error Rate: Percentage of the total number of Wi-Fi packets seen on the channel that have CRC errors.
Wi-Fi Array Intrusion Detection This window displays all detected access points, according to the category you select from the drop-down list at the top—either Unknown, Known or Approved. This includes ad hoc access points (station-to-station connections). You can sort the results based on the following parameters by clicking the desired column header: z SSID z Security z BSSID z Type z Manufacturer z Discovered z Channel z Last Active z RSSI Select the type of AP to display Figure 80.
Wi-Fi Array Figure 81. Categorizing APs You can refresh the list at any time by clicking on the Refresh button, or click in the Auto Refresh check box to instruct the Array to refresh the list automatically.
Wi-Fi Array Station Status Windows The following Station Status windows are available: z Stations—this list describes all stations associated to the Array. z Location Map—displays a map showing the approximate locations of all stations associated to the array. z RSSI—for each associated station, this displays the Received Signal Strength Indicator at each of the Array’s IAPs. z Signal-to-Noise Ratio (SNR)—for each associated station, this displays the SNR at each of the Array’s IAPs.
Wi-Fi Array Stations This status-only window shows client stations currently visible to the Array. You may choose to view only stations that have associated to the Array, or only stations that are not associated, or both, by selecting the appropriate checkboxes above the list.
Wi-Fi Array See Also Access Control List Station Status Windows Location Map The Location Map shows the approximate locations of stations relative to this Array. You may display stations associated to this Array, unassociated stations (shown in gray), or both. The station count is shown on the left, above the map. You may also choose to display 5 GHz stations (shown in orange) or 2.4 GHz stations (shown in green), or both.
Wi-Fi Array A station is identified by its NetBIOS name if known, or else by its IP or MAC address. Hover the mouse over a station to show detailed information. If multiple stations are near each other, they will be displayed slightly offset so that one station does not completely obscure another. You may minimize a station that is not of interest by clicking it. Click it again for normal display. There is also a Minimize All button.
Wi-Fi Array z Display Associated/Unassociated: Select whether to display stations that are associated to the Array, stations that are not associated, or both. z Display 2.4 GHz/5 GHz: Select whether to display 802.11bg(n) stations, or 802.11a(n) stations, or both. z Minimize All: All stations are shown by default with their NetBIOS name or IP or MAC address. If the map is too cluttered, you can reduce the display for each station to a small rectangle.
Wi-Fi Array using the custom, image, see “Working with the Custom Image” on page 154. z Upload: After browsing to the desired custom image, click the Upload button to install it. The map will be redisplayed with your new background. No hash marks are added to the image display. z Reset: Click this button to restore the map display to the factory settings. All attributes are restored—including the stations selected for display, the scale, the rotation, and the background map.
Wi-Fi Array small steps; the outer arrows move it by larger steps. The arrows only work when you position the mouse directly over them—make sure you see the hand icon . If you need to return the Array to the center of the map, click the center of the location controls. When you are done, click the Apply button to save the new Array location, as well as the enlarge/reduce/rotate settings.
Wi-Fi Array RSSI For each station that is associated to the Array, the RSSI (Received Signal Strength Indicator) window shows the station’s RSSI value as measured by each IAP. In other words, the window shows the strength of the station’s signal at each radio. You may choose to display Unassociated Stations as well with a checkbox at the bottom of the window. Figure 87. Station RSSI Values By default, the RSSI is displayed numerically.
Wi-Fi Array Figure 88. Station RSSI Values—Colorized Graphical View In either graphical or tabular view, you may sort the rows based on any column that has an active column header, indicated when the mouse pointer changes to the hand icon . Click on the Refresh button to refresh the station list, or click in the Auto Refresh check box to instruct the Array to refresh this window automatically.
Wi-Fi Array Signal-to-Noise Ratio (SNR) For each station that is associated to the Array, the Signal-to-Noise Ratio (SNR) window shows the station’s SNR value as measured by each IAP. In other words, the window shows the SNR of the station’s signal at each IAP radio. The signalto-noise ratio can be very useful for determining the cause of poor performance at a station.
Wi-Fi Array Figure 90. Station SNR Values—Colorized Graphical View In either graphical or tabular view, you may sort the rows based on any column that has an active column header, indicated when the mouse pointer changes to the hand icon . Click on the Refresh button to refresh the station list, or click in the Auto Refresh check box to instruct the Array to refresh this window automatically.
Wi-Fi Array Noise Floor For each station that is associated to the Array, the Noise Floor window shows the ambient noise affecting a station’s signal as measured by each IAP. The noise floor is the RSSI value when the station is not transmitting, sometimes called a Silence value. In other words, the window shows the noise floor of the station’s signal at each IAP radio. The noise floor value can be very useful for characterizing the environment of a station to determine the cause of poor performance.
Wi-Fi Array Figure 92. Station Noise Floor Values—Colorized Graphical View In either graphical or tabular view, you may sort the rows based on any column that has an active column header, indicated when the mouse pointer changes to the hand icon . Click on the Refresh button to refresh the station list, or click in the Auto Refresh check box to instruct the Array to refresh this window automatically.
Wi-Fi Array Max by IAP This status-only window shows the maximum number of client stations that have historically been associated to the Array. For each IAP, the list shows the IAP’s state and channel number, the current number of stations associated, and the highest number of stations that have been associated over various periods of time: hour, day, week, month, and year.
Wi-Fi Array Statistics Windows The following Array Statistics windows are available: z IAP Statistics Summary—provides an overview of the statistical data associated with all IAPs. Expands to show links for displaying detailed statistics for individual IAPs. z Per-IAP Statistics—provides detailed statistics for an individual IAP. z Network Statistics—displays statistical data associated with each network (Ethernet) interface.
Wi-Fi Array Figure 94. IAP Statistics Summary Page See Also System Log Window Global Settings (IAP) Global Settings .11a Global Settings .11bg IAPs Per-IAP Statistics This is a status only window that provides detailed statistics for the selected IAP. If you click the link for IAP All in the left frame, each detailed statistic field will show the sum of that statistic for all IAPs. For a summary of statistics for all IAPs, see “IAP Statistics Summary” on page 163.
Wi-Fi Array Figure 95. Individual IAP Statistics Page (for IAP abg(n)1) You can Refresh the data (update the window with the latest information) or Clear the data (reset all content to zero and begin counting again) at any time by clicking on the appropriate button. You can also click in the Auto Refresh check box to instruct the Array to refresh this window automatically. See Also System Log Window Global Settings (IAP) Global Settings .11a Global Settings .
Wi-Fi Array IAPs Network Statistics This is a status only window that allows you to review statistical data associated with each network (Ethernet) interface and its activity. You can Refresh the data (update the window with the latest information) or Clear the data (reset all content to zero and begin counting again) at any time by clicking on the appropriate button. You can also click in the Auto Refresh check box to instruct the Array to refresh this window automatically.
Wi-Fi Array VLAN Statistics This is a status only window that allows you to review statistical data associated with your assigned VLANs. You can refresh the information that is displayed on this page at any time by clicking on the Refresh button, or select the Auto Refresh option for this window to refresh automatically. The Clear All button at the lower left allows you to clear (zero out) all VLAN statistics. Figure 97.
Wi-Fi Array WDS Statistics The main WDS Statistics window provides statistical data for all WDS client and host links. To access data about a specific WDS client or host link, simply click on the desired link in the left frame to access the appropriate window. You can also select to view a sum of the statistics for all client links, all host links, or all links (both client and host links). Figure 98.
Wi-Fi Array Filter Statistics The Filter Statistics window provides statistical data for all configured filters. The name, state (enabled—on or off), and type (allow or deny) of each filter is shown. For enabled filters, this window shows the number of packets and bytes that met the filter criteria. Click on a column header to sort the rows based on that column. Click on a filter name to edit the filter settings. Figure 99.
Wi-Fi Array You can Refresh the data (update the window with the latest information) at any time by clicking on the appropriate button. You can also click in the Auto Refresh check box to instruct the Array to refresh this window automatically. Note that you can clear the data for an individual station (see below), but you cannot clear the data for all stations using this window. See Also Per-Station Statistics Per-Station Statistics This window provides detailed statistics for the selected station.
Wi-Fi Array System Log Window This is a status only window that allows you to review the system log, where system alerts and messages are displayed. Although there are no configuration options available in this window, you do have the usual choice of deciding how the event messages are sorted by clicking in the column header for the desired field (Time Stamp, Priority, or Message). z Time Stamp—sorts the list based on the time the event occurred.
Wi-Fi Array 172 Viewing Status on the Wi-Fi Array
Wi-Fi Array Configuring the Wi-Fi Array The following topics include procedures for configuring the Array using the product’s embedded Web Management Interface (WMI). Procedures have been organized into functional areas that reflect the flow and content of the WMI.
Wi-Fi Array Express Setup The Express Setup procedure allows you to establish global configuration settings that will enable basic Array functionality. Any changes you make in this window will affect all radios. When finished, click on the Apply button to apply the new settings to this session, or click Save to apply your changes and make them permanent. Figure 103.
Wi-Fi Array Procedure for Performing an Express Setup 1. Host Name: Specify a unique host name for this Array. The host name is used to identify the Array on the network. Use a name that will be meaningful within your network environment, up to 64 alphanumeric characters. The default is Xirrus-WiFi-Array. 2. Location Information: Enter a brief but meaningful description that accurately defines the physical location of the Array.
Wi-Fi Array on this port. Choose Yes to allow management of the Array via this Gigabit interface, or choose No to deny all management privileges for this interface. c. 8. Configuration Server Protocol: Choose DHCP to instruct the Array to use DHCP to assign IP addresses to the Array’s Ethernet interfaces, or choose Static if you intend to enter IP addresses manually. If you choose the Static IP option, you must enter the following information: • IP Address: Enter a valid IP address for this Array.
Wi-Fi Array required to use a VPN connection through a secure SSH utility, like PuTTy. • WEP (Wired Equivalent Privacy)—An optional IEEE 802.11 function that offers frame transmission privacy similar to a wired network. WEP generates secret shared encryption keys that both source and destination stations can use to alter frame bits to avoid disclosure to eavesdroppers. • WPA (Wi-Fi Protected Access)—A Wi-Fi Alliance standard that contains a subset of the IEEE 802.
Wi-Fi Array write privileges on the Array (i.e., the new user will be able to change the configuration of the Array). The default admin user is deleted. Note that the Array also offers the option of authenticating administrators using a RADIUS server (see “Admin Management” on page 213)). b. New Admin Password: If desired, enter a new administration password for managing this Array. Choose a password that is not obvious, and one that you can remember.
Wi-Fi Array e. NTP Secondary Server: Enter the IP address or domain name of an optional secondary NTP server to be used in case the Array is unable to contact the primary server. f. Set Time (hrs:min:sec): If you are not using NTP, check this box if you want to adjust the current system time. When the box is checked, the time fields become active. Enter the revised time (hours, minutes, seconds, am/pm) in the corresponding fields.
Wi-Fi Array This ends the Express Setup procedure. Network This is a status only window that provides a snapshot of the configuration settings currently established for the 10/100 Ethernet 0 interface and the Gigabit 1 and Gigabit 2 interfaces. DNS Settings and CDP Settings (Cisco Discovery Protocol) are summarized as well. You must go to the appropriate configuration window to make changes to any of the settings displayed here (configuration changes cannot be made from this window).
Wi-Fi Array Spanning Tree Status Network Statistics Network Interfaces This window allows you to establish configuration settings for the 10/100 Fast Ethernet interface and the Gigabit 1 and Gigabit 2 interfaces. Figure 106.
Wi-Fi Array # Gigabit 2 settings will “mirror” Gigabit 1 settings (except for MAC addresses) and cannot be configured separately. When finished making changes, click on the Apply button to apply the new settings to this session, or click Save to apply your changes and make them permanent. When the status of an Ethernet or Gigabit port changes, a Syslog entry is created describing the change.
Wi-Fi Array 1. Enable Interface: Choose Yes to enable this network interface (Fast Ethernet, Gigabit 1 or Gigabit 2), or choose No to disable the interface. 2. LED Indicator: Choose Enabled to allow the LED for this interface to blink with traffic on the port, or choose Disabled to turn the LED off. The LED will still light during the boot sequence, then turn off. This option is only available for the Gigabit interfaces. 3.
Wi-Fi Array a. Active Backup (gig1/gig2 failover to each other)—This mode provides fault tolerance and is the default mode. Gigabit 1 acts as the primary link. Gigabit2 is the backup link and is passive. Gigabit2 assumes the IP properties of Gigabit1. If Gigabit 1 fails the Array automatically fails over to Gigabit2. When a failover occurs in this mode, Gigabit2 issues gratuitous ARPs to allow it to substitute for Gigabit1 at Layer 3 as well as Layer 2. See Figure 108 (a). b.
Wi-Fi Array c. Bridge traffic between gig1 & gig2—Traffic received on Gigabit1 is transmitted by Gigabit2; similarly, traffic received on Gigabit2 is transmitted by Gigabit1. This allows the Array to act as a wired bridge and allows Arrays to be daisy-chained and still maintain wired connectivity. See Figure 109 (c). d. Transmit Traffic on both gig1 & gig2—Transmits incoming traffic on both Gigabit1 and Gigabit2. Any traffic received on Gigabit1 or Gigabit2 is sent to the onboard processor.
Wi-Fi Array (e) Load balance traffic Gig1 Gig2 Destinations Array load balances outgoing traffic based on source and destination address Switch (f) Mirror traffic Gig1 Gig2 Received wireless traffic is sent to both links Network Analyzer Switch Gig1 Gig2 Traffic from Gig 1 is processed for wireless transmission and copied to Gig 2 Switch Network Analyzer Gig1 Gig2 Traffic from Gig 2 is processed for wireless transmission and copied to Gig 1 Network Analyzer Switch Figure 110.
Wi-Fi Array processor as well as out Gigabit1. This allows a network analyzer to be plugged into one port to capture traffic for troubleshooting, while the other port provides network connectivity for data traffic. See Figure 110 (f). 6. Configuration Server Protocol: Choose DHCP to instruct the Array to use DHCP when assigning IP addresses to the Array, or choose Static IP if you intend to enter IP addresses manually.
Wi-Fi Array DNS Settings This window allows you to establish your DNS (Domain Name System) settings. At least one DNS server must be set up if you want to offer clients associating with the Array the ability to use meaningful host names instead of numerical IP addresses. When finished, click on the Apply button to apply the new settings to this session, or click Save to apply your changes and make them permanent. Figure 111. DNS Settings Procedure for Configuring DNS Servers 1.
Wi-Fi Array CDP Settings CDP (Cisco Discovery Protocol) is a layer 2 network protocol used to share information (such as the device manufacturer and model, network capabilities, and IP address) with other directly connected network devices. Wi-Fi Arrays can both advertise their presence by sending CDP announcements, and gather and display information sent by neighbors (see “CDP Neighbors” on page 140). This window allows you to establish your CDP settings.
Wi-Fi Array See Also CDP Neighbors Network Network Interfaces Network Statistics 190 Configuring the Wi-Fi Array
Wi-Fi Array Services This is a status only window that allows you to review the current settings and status for services on the Array, including DHCP, SNMP, Syslog, and Network Time Protocol (NTP) services. For example, for the DHCP server, it shows each DHCP pool name, whether the pool is enabled, the IP address range, the gateway address, lease times, and the DNS domain being used.
Wi-Fi Array Time Settings (NTP) This window allows you to manage the Array’s time settings, including synchronizing the Array’s clock with a universal clock from an NTP (Network Time Protocol) server. Synchronizing the Array’s clock with an NTP server ensures that Syslog time-stamping is maintained across all units. Figure 114. Time Settings (Manual Time) Procedure for Managing the Time Settings 1. Time Zone: Select the time zone you want to use (normally your local time zone) from the pull-down list.
Wi-Fi Array b. Adjust Date (month/day/year): If you are not using NTP, check this box if you want to adjust the current system date. When the box is checked, the date fields become active. Enter the revised date (month, day and year) in the corresponding fields. If you don’t want to adjust the current date, this box should be left unchecked (default). 5. Using an NTP Server a. NTP Primary Server: If you are using NTP, enter the IP address or domain name of the NTP server. Figure 115.
Wi-Fi Array NetFlow This window allows you to enable or disable the sending of NetFlow information to a designated collector. When enabled, the Array will send IP flow information (traffic statistics) to the collector. Figure 116. NetFlow Procedure for Configuring NetFlow 194 1. Enable NetFlow: Choose Yes to enable NetFlow functionality, or choose No to disable this feature. 2. NetFlow Collector Host (Domain or IP): If you enabled NetFlow, enter the domain name or IP address of the collector. 3.
Wi-Fi Array System Log This window allows you to enable or disable the Syslog server, define primary, secondary, and tertiary servers, set up email notification, and set the level for Syslog reporting for each of the servers and for email notification—the Syslog service will send Syslog messages that are at the selected severity or above to the defined Syslog servers and email address. Figure 117. System Log Procedure for Configuring Syslog 1.
Wi-Fi Array 3. Local File Size (1-500): Enter a value in this field to define how many Syslog records are retained locally on the Array’s internal Syslog file. The default is 500. 4. Primary Server Address (Domain or IP): If you enabled Syslog, enter the domain name or IP address of the primary Syslog server. 5. Secondary/Tertiary Server Address (Domain or IP): If you enabled Syslog, you may enter the domain name or IP address of one or two additional Syslog servers to which messages will also be sent.
Wi-Fi Array b. Local File: For records to be stored on the Array’s internal Syslog file, choose your preferred level of Syslog reporting from the pull-down list. The default level is Debugging and more serious. c. Primary Server: Choose the preferred level of Syslog reporting for the primary server. The default level is Debugging and more serious. d. Secondary/Tertiary Server: Choose the preferred level of reporting for the secondary/tertiary server. The default level is Information and more serious.
Wi-Fi Array SNMP This window allows you to enable or disable SNMP v2 and SNMP v3 and define the SNMP parameters. SNMP v2 allows remote management of the Array by the Xirrus Management System (XMS). SNMP v3 was designed to offer much stronger security. You may enable either SNMP version, neither, or both. If you enable both, be aware that data and keys are not encrypted when SNMPv2 is used.
Wi-Fi Array Procedure for Configuring SNMP 1. Enable SNMPv2: Choose Yes to enable SNMP v2 functionality, or choose No to disable this feature. When used in conjunction with the Xirrus Management System, SNMP v2 (not SNMP v3) must be enabled on each Array to be managed with XMS. The default for this feature is Yes (enabled). 2. SNMP Read-Write Community String: Enter the read-write community string. The default is xirrus. 3. SNMP Read-Only Community String: Enter the read-only community string.
Wi-Fi Array 11. SNMP Read-Only Username: Enter the read-only user name. This username and password do not allow configuration changes to be made on the Array. The default is xirrus-ro. 12. SNMP Read-Only Authentication Password: Enter the read-only password for authentication (i.e., logging in). The default is xirrus-ro. 13. SNMP Read-Only Privacy Password: Enter the read-only password for privacy (i.e., a key for encryption). The default is xirrus-ro. 14.
Wi-Fi Array DHCP Server This window allows you to create, modify and delete DHCP (Dynamic Host Configuration Protocol) pools and enable or disable DHCP server functionality. DHCP allows the Array to provide wireless clients with IP addresses and other networking information. The DHCP server will not provide DHCP services to the wired side of the network.
Wi-Fi Array 5. Network Address Translation (NAT): Check this box to enable the Network Address Translation feature. 6. Lease IP Range—Start: Enter an IP address to define the start of the IP range that will be used by the DHCP server. The default is 192.168.1.100. 7. Lease IP Range—End: Enter an IP address to define the end of the IP range that will be used by the DHCP server. The DHCP server will only use IP addresses that fall between the start and end range that you define on this page.
Wi-Fi Array VLANs This is a status only window that allows you to review the current status of assigned VLANs. A VLAN (Virtual LAN) is comprised of a group of devices that communicate as a single network, even though they are physically located on different LAN segments. Because VLANs are based on logical rather than physical connections, they are extremely flexible. A device that is moved to another location can remain on the same VLAN without any hardware reconfiguration.
Wi-Fi Array Virtual Tunnel Server (VTS) Tunneling capability is provided by a Virtual Tunnel Server. You supply the server and deploy it in your network using open-source VTun software, available from vtun.sourceforge.net. To enable the Array to use tunneling for a VLAN, simply enter the IP address, port and secret for the tunnel server as described in Step 10 on page 206. VTun may be configured for a number of different tunnel types, protocols, and encryption types.
Wi-Fi Array VLAN Management This window allows you to assign and configure VLANs. After creating a new VLAN (added to the list of VLANs), you can modify the configuration parameters of an existing VLAN or delete a selected VLAN. Figure 121. VLAN Management # The Wi-Fi Array supports dynamic VLAN assignments specified by RADIUS policy settings. When RADIUS sends these assignments, the Array dynamically assigns wireless stations to VLANs as requested. VLAN tags on traffic are passed through the Array (i.
