Allied Telesis AT-TQ2450 manuale d’uso

613-001821 Rev. A AT-TQ2450 Enterprise-class Wireless Access Point with IEEE802.11a/b/g/n Dual Radio Management Software User’s Guide[...]

Copyright  2013 Allied Telesis, Inc. All rights reserved. This product includes software licensed under the BSD License. As su ch, the following language applies for those portions of the software li censed under the BSD License: Redistribution and use in source and binary forms, with or wi thout mod ification, are perm itted provided that t he [...]

All other product names, company names, lo gos or other desi gnations mentioned herein ar e trademarks or registered trademarks of thei r respective owners. Allied Telesis, Inc. reserves the right to make changes in specifications and other info rmation contained in this d ocument without prior written noti ce. The information provided herein is su[...]

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5 Preface ........ ............. ................ ................ ............. ................ ............. ................ ............. ... .......... ................ ... 11 Safety Symbols Used in this Document ........................... ................ ................ ................ ................ ....... ......... 12 Contacting All[...]

Contents 6 Configuring the WDS Bridge ............ ................ ............. ................ ................ ................ ............ ....... ......... 72 Static WEP ............. ................ ............. ................ ................ ............. ................ .............. ......... ................ .. 74 WPA Personal .[...]

7 Figur es Figure 1: Log On Window ....... ................ ................ ................ ................. ................ ............. ................... ........ 18 Figure 2: Horizontal Menus ................. ................ ................ ................ ............. ................ .................... ........... 22 Figure 3: Ve[...]

List of Figures 8 Figure 42: Modify QoS Queue Parameters .......... ... ............. ............. ................ ............. ................ ..... ........... 131 Figure 43: SNMP Configuration Window ................ ...... ............. ................ ............. ................ ........... ............ 138 Figure 44: Control LEDs Wind[...]

9 Table 1. Review Description of this Access Poin t ....... ................ ............. ................ ............. ............ ............. 27 Table 2. Modify Wireless Settings Window ....... .......... ................ ............. ................ ................ ....... ............... 40 Table 3. Modify Radio Set tings Window ...... [...]

List of Tables 10[...]

11 Pr eface This guide explains how to configur e the AT-TQ2450 Wireless Access Point and the 2.4 GHz and 5 GHz ra dios with the web browser management windows. This preface contains the followin g sections:  “Safety Symbols Used in this Document” o n page 12  “Contacting Allie d T elesis” on p age 13[...]

Preface 12 Safety Symbols Used in this Document This document uses the following conventions. Note Notes provide additional informatio n. Caution Cautions inform you t hat performing or omitting a spe cific action may result in equipment damage or loss of data. Warning Warnings inform you that performing or omitting a specific action may result in [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 13 Contacting Allied Telesis If you need assistance with this prod uct, you may contact Allied Telesis technical support by going to the Suppo rt & Services section of the Allied Telesis web site at www.alliedtelesis.com/support . You can find links for the following services on this page:  24[...]

Preface 14[...]

15 Chapter 1 Overview This chapter describes how to start the initial management session on the access point. This chapter contains the following sections:  “Features” on page 16  “Management Modes and Met hods” on page 17  “S tarting a Ma nagement Session on the Access Point” on p age 18  “S tarting the Initial Management[...]

Chapter 1: Ove rview 16 Features The main features of the product are listed here:  Independent 2.4 and 5 GHz radios  IEEE 802.11a/b/g  IEEE 802.11n 2x2 MIMO chains with antenna diversity  Data rates of 300 Mbps for the 2.4 GHz radio and 300 Mbps for the 5 GHz radio  Wireless Distribution System (WDS) bridges  Access point cluster[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 17 Management Modes and Methods The access point has two management modes:  Stand-alone mode: Access points in the stand-alone mode are managed independently of each ot her. To configure a unit in this mode, you have to know its IP address or domain name, and the username and password of the manag[...]

Chapter 1: Ove rview 18 Starting a Management Session on the Access Point This section explains how to sta rt a management session on the access from your management workstation. The procedure a ssumes that the access point has already been assigned an IP ad dress. The address can be a static address that was manually assigned to the unit or it can[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 19 Starting the Initial Management Session on the Access Point If you just installed the device and are powering it on for the first time, it queries the subnet on the LAN port fo r a DHCP server. If a DHCP server responds to its query, the unit uses the IP address the server assigns to it. If there [...]

Chapter 1: Ove rview 20 Starting the Initial Management Session with a Direct Connection To start the management se ssion with a direct Ethernet conne ction between your computer and the access port, perform the fo llowing procedure: Note If the access point is using PoE, you may not p erform this procedure because it involves a direct c onnection [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 21 connected to a port that is also a member of that VLAN. If your network is small and does not have VLANs or route rs, you may connect your computer to any port on the Etherne t switch. 2. Change the IP address on your computer to 192.168.1 . n , where n is a number from 1 to 254, but not 230. Refe[...]

Chapter 1: Ove rview 22 Using the Management Menus and Windows Here is general information about the manage ment menus and windows. Web Browser Menus You may control the appearance o f the menus with the Navigator pull- down menu in the upper right corner of the web browser windows. The menu options are Horizontal Tabs , Vertical Tabs, and Dropdown[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 23 Figure 3. Vertical Menus The Dropdown Menu option displays t he main menu in a horizontal row near the top of the window. Menu options are displayed vertically when you move the mouse over t he main menu. Figure 4 shows the Manage menu. Figure 4. Dropdown Menus[...]

Chapter 1: Ove rview 24 The menus contain the same selections and per form the same functions regardless of the format. You may switch between formats without interrupting your current se ssion or having to stop and start it again. Saving Your Changes You need to remember to click the Updat e button when you are finished configuring the parameters [...]

25 Chapter 2 Basic Settings Menu This chapter describes the management fu nctions of the menu selections in the Basic Settings menu. The chapter conta ins the following sections:  “Displaying Basic Information” on p age 26  “Changing the Manager’s Login Name and Password” on p age 28  “Changing the System Name, Cont act, and Lo[...]

Chapter 2: Ba sic Settings Menu 26 Displaying Basic Information This section explains how to displa y the following information about the access point:  IP address  MAC address  Firmware version number  Build number  Operati onal time To display the information, select Basic Se ttings from the main menus to display the “Provide bas[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 27 T able 1. Review Descriptio n of this Access Point Field Description IP Address Displays the IP address of the access point. For instructions on how to set the IP address, refer to “Assigning a S tatic IP Address to the Access Point” on pa ge 32 or “Assigning a Dynamic IP Address from a DHCP[...]

Chapter 2: Ba sic Settings Menu 28 Changing the Manager’s Login Name and Password This procedure explains how to chan ge the login name and password o f the manager account on the access point. The default values are “manager” and “friend”, respectively. The access point can have only one manager account. Changing the name and passwo rd d[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 29 Changing the System Name , Contact, and Location This procedure explains how to identif y the access point by defining the system name, the person respon sible for managing the de vice, and its location. This information is optional. To change the system name, contact, and loca tion information, p[...]

Chapter 2: Ba sic Settings Menu 30[...]

31 Chapter 3 Manage Menu This chapter describes the management fu nctions of the menu selections in the Manage menu. The chap ter contains the following sections:  “Assigning a S tatic IP Addr ess to the Access Point” o n page 32  “Assigning a Dynamic IP Address from a DHCP Server to the Access Point” on page 34  “Setting VLAN ID[...]

Chapter 3: Manage Menu 32 Assigning a Static IP Ad dress to the Access Point This section explains how to manually assig n an IP address to the access point. The unit uses the address to communicate with devices on your network, such as management workst ations, syslog serve rs, and RADIUS servers. The access point may have only one IP addre ss. If[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 33 The S tatic IP Address, Subnet Mask, and Default Gateway fields in the window are activated so that you can cha nge their values. 3. Select the Static IP Address field and enter the new IP address for the access point. The default address is 19 2.168.1.230. 4. Select the Subnet Mask fields and ent[...]

Chapter 3: Manage Menu 34 Assigning a Dynamic IP Address from a DHCP Server to the Access Point This section explains how to assign an IP address to the access point from a DHCP server. The unit uses the address to communicate with de vices on your network, such as management workstations, syslog servers, and RADIUS servers. The access point may ha[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 35 Setting VLAN IDs The “Modify Ethernet ( Wired) settings ” window has two settin gs for VLAN IDs (VIDs). One setting is used to specify the management VLAN and the other is used to designate a VLAN for untagged traffic. Management VLAN ID The Management VLAN ID field in the “Modify Ethernet ([...]

Chapter 3: Manage Menu 36 Enabling or Disabling Broadcast Ping Replies You may configure the access point to either ignore or reply to ICMP echo requests to IP broadcast addresses, also referred to as broadcast pings. To configure broadcast ping replies, perform th e following procedure: 1. From the Manage menu, select Ethernet Settings. The access[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 37 Setting the Country Setting You should set the country setting of the access point as soon as you install the unit. This ensures that th e device opera tes in compliance with the codes and regulations o f your region or country. Note Changing the country setting o f the access point disable s both[...]

Chapter 3: Manage Menu 38 Note If the Country pull-down menu is deactiva ted, the country parame ter was set by the manufacturer and cannot be changed. Contact your Allied Telesis sales representative for assist ance if the setting is not correct for your country or region. The access point displays a confirmation p rompt. 3. Click OK to change the[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 39 Configuring Basic Radio Settings The management software has two windows fo r configuring the operational settings of the radios in t he access point. The “Modify radios settings” window, described in “C onfiguring the Radio Settings” on page 42, is the main window for adjusting the radio [...]

Chapter 3: Manage Menu 40 T able 2. Modify Wireless Settings Window Field Description Radio On Off Enables or disables the radio. The selections are described here: - On: Enables the radio . Y ou have to enable a radio before you can configure its p arameter settings. - Off: Disa bles the radio. This is the default setting. MAC Address Displays the[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 41 Channel S pecifies the channel for the radio in the access point. The number of availab le channels varies by radio, mode, and country . Here are the guidelines: - At the Auto setting, the access point sets the channel automatically . The access point listens on the channels and select s the one w[...]

Chapter 3: Manage Menu 42 Configuring the Radio Settings To configure the parameter settings of the 2.4 and 5 GHz radios, perform the following procedure: 1. From the Manage menu, select Radio. The management sof tware displays the “Modify radio settings window ,” shown in Figure 8 on p age 43. 2. From the Radio pull-down menu, sele ct a radio.[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 43 Figure 8. Modify Radio Set tings Window[...]

Chapter 3: Manage Menu 44 T able 3. Modify Radio Se ttings Window Parameter Description Mode S pecifies the Physical Layer (PHY) standard of the radio. The availa ble modes depend on the radio and coun try . The modes are: - IEEE 802.1 1a: The access point accepts only 802.1 1a clients. - IEEE 802.1 1b/g: The access point accepts only 802.1 1b and [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 45 Channel S pecifies the radio channel. The available channels vary by radio, mode, and country . Here are the guidelines: - The Auto setting, the default setting, set s the channel automatically . The access point selects the channel with the least traffic. This is the d efault setting. - Y ou can [...]

Chapter 3: Manage Menu 46 Periodical Channel Refresh S pecifies whether the access point periodically reruns the channel selection process. Here are the guidelines: - This selection is only available when the Channel parameter is set to Auto. - Adding a check mark to the dialog box enables the feature. - Removing the check mark from the dialog box [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 47 Primary Channel S pecifies the location of the Primary channel when a radio is operating at 40 MHz. A 40 MHz channel consists of two 20 MHz channels. They are contigu ous in the frequency domain and referred to as the Primary and Secondary channels. The Primary channel is used by 802.1 1n clients [...]

Chapter 3: Manage Menu 48 Short Guard Interval Supported S pecifies the dead time interval, in nanoseconds, between OFDM symbols. The guard interval prevent s Inter-Symbol and Inter-Carrier Interference (ISI, ICI). The 802.1 1n mode support s a reduction in the interval from 800 nanoseconds, defined in the a and g st andards, to 400 nanoseconds. Th[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 49 Multidomain Regulatory Mode S pecifies whether a radio should operate in the Multidomain Regulatory Mode (World Mode) a nd include the cou ntry code in its beacons and probe responses. This allows client stations to operate in any country without reconfiguration. This feature only applies to radio[...]

Chapter 3: Manage Menu 50 Protection Enables or disables rules that guarantee that transmissions do not cause interference with legacy st ations or applications. The possible settings are describe here: - Auto: This setting enables protect ion when legacy devices are within range of the radio. - Off: This setting disables the protection s. Legacy c[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 51 Fragmentation Th reshold S pecifies packet size for fragment ation. The fragmentation threshold lets you control the maximum size of p ackets the access point transmit s. Packets that exceed the threshold are transmitted as multiple 802.1 1 packets. The range is 256 to 2346 bytes. Setting the thre[...]

Chapter 3: Manage Menu 52 T ransmit Power S pecifies the transmission power of the access point. The power is selected from a list of percenta ges, in the range of 1% to 100%. The default is 100%. Here are the guidelines: - High transmission power levels are mo re cost-ef fective than low settings because the access point has a greater rang e. This[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 53 Broadcast/Multicast Rate Limiting Enables or disables rate limiting of broadcast and multicast packet s. Here are the guidelines - T o activate rate limitin g, click the dialog box to add a check mark. T o deactivate rate limiting, click the box to remove the check mark. The default setting is dis[...]

Chapter 3: Manage Menu 54 Configuring Virtual Access Points Virtual access points (VAPs) func tion as independent broadcast domains and are the wireless equivalent of Ethern et VLANs. They are seen by clients as independent access points, with the ir own VIDs, SSIDs, and security methods. Here are the gui delines to VAPs:  Each radio can have up[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 55 Here are the gui delines f or VIDs:  The range is 1 to 4094.  The default is VID 1.  You may assign the same VID to more than one VAP.  A VAP can have only one VID.  The number is ignored for wireless clients who are assigned VIDs from a RADIUS server because VIDs from a RADIUS serv[...]

Chapter 3: Manage Menu 56 8. If you want to control access to your network through the VAP by filtering clients by their MAC addresses, select the MAC Filt ering pull- down menu and select Enabled. To d isable MAC address filtering, select Disabled, the default setting. For instructions on how to configure the filter, refer to “Configuring th e M[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 57 No Security The None security level is intended for VAPs with wi reless clients that do not require encryption or authentication . This is the default setting. IEEE 802.1x Security The guidelines for IEEE 802.1x security are listed here:  This security method requires an external RADIUS server [...]

Chapter 3: Manage Menu 58 RADIUS Key Enter the shared secret key for the primary RADIUS server . The key can be up to 128 characters and can co nsist of letters, numbers, and special characters. The key is case-sensitive. This key must be the same as the key on the server . Secondary RADIUS Key Enter the shared secret key for the secondary RADIUS s[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 59 Static WEP The parameter settings for static WEP security are shown in Figure 11 and defined in Table 5. Figure 11. Static WEP Encryption for VAPs Session Key Refresh Rate (Range: 0 - 86400) S pecify the refresh rate for the session (unicast) key for the client s of the V AP . The range is 0 to 86[...]

Chapter 3: Manage Menu 60 WEP Keys Enter up to four WEP keys in the fields numbered 1 to 4. The key length and type settings determine the length and format of the keys. The order of the keys has be the same on the access point and client s. Here are the guidelines for ASCII keys: An ASCII key may conta in upper and lower characters and the numbers[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 61 Authentication S pecify whether or not the access point authenticates V AP clients. The options are described here. Open System: The access point does not authenticate the V AP clients. All client s, even those without the correct WEP keys, are allowed to connect to the access point. This is the d[...]

Chapter 3: Manage Menu 62 WPA Enterprise The WPA Enterprise security paramete rs are shown in Figure 12 and defined in Table 6 on page 63. Figure 12. WPA Enterprise for VAPs[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 63 T able 6. WP A Enterprise Field Description WP A V ersions Select the WP A version. The options are listed here: - WP A: Select this option if all the wirele ss clients of the V AP support WP A, but not WP A2. - WP A2: Select this option if all the clients support WP A2, but not WP A. This is the [...]

Chapter 3: Manage Menu 64 Secondary RADIUS IP Address Enter the IPv4 address of a secondar y RADIUS server . This field is optional. The access point sends authent ication requests to this a ddress if the primary RADIUS server does not respond to requests. RADIUS Key Enter the shared secret key for the primary RADIUS server . The key can be up to 1[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 65 WPA Personal The options for WPA Personal a re shown in Figure 13 and defined in Table 7. Figure 13. WPA Personal for VAPs Broadcast Key Refresh Rate (Range: 0 - 86400) S pecify the refresh interval rate for the broadcast (group) key . The range is 0 to 86400 seconds. The value 0 prevents th e key[...]

Chapter 3: Manage Menu 66 Cipher Suites Select the cipher suite for the V AP . The options are listed here: - TKIP - CCMP (AES) - Both TKIP and CCMP (AES) When both TKIP and CCMP (AES) are selected, clients who are using WP A must have one of the following: - A valid TKIP key . - A valid CCMP (AES) key . Key Enter a shared secret key of 8 to 63 alp[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 67 Managing Wireless Distribution System Bridges A wireless distribution system (WDS) bridg e is a wireless link between two access points. The link allows the units to forward traffic directly to ea ch other over a wireless connection as if they were connected with a physical Ethernet wire. You can [...]

Chapter 3: Manage Menu 68 Figure 16. Supported Configurations of WDS Bridges Here are the configuration restrictions for WDS bridges:  The wireless connections of the access points in a WDS bridge community must not form a loop. For instance, Figure 17 on p age 69 is an invalid loop configurat ion of three access points. One configuration for a [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 69 Figure 17. Invalid Loop Configuration of Access Points  Additionally, the access points may not form lo ops with wired devices. An example is shown in Figure 18. Figure 18. Invalid Loop Configuration of Access Points to a Wired Network Device Radio You may use either the 2.4 or 5 GHz radios in [...]

Chapter 3: Manage Menu 70 Encryption Here are the available encryptio n settings for a WDS bridg e:  No encryption  Static WEP  WPA Personal The available encryption modes for a WDS bridge vary depending on the radio mode and VAP security. The possibl e settings are listed in Table 8. For example, if you want to use WPA Personal on a WDS b[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 71  The access points of a WD S bridge use VAP0 as the communications link. The VAP shoul d not be used by wireless clients.  You may not combine the WDS bridge and cluster f eatures on the same access points. Preparing the Access Point for the WDS Bridge This procedure explains how to pr epare[...]

Chapter 3: Manage Menu 72 but only on the one to be used for the bridge. For example, if you are planning to use the 2.4 GHz radio for the brid ge, you should activate access point detection on that radio. For instructions, refer to “V iewing Neighboring Access Point s” on page 120. After performing steps 1 to 5, do one of the following:  If[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 73 The window has four sections. Y ou may use each section to create a WDS bridge to a dif ferent access point. 2. Use the Radio pull-down menu in one of th e sections to select the radio for the WDS bridge between the access points. Radios 1 and 2 are the 2.4 and 5 GHZ radios, resp ectively, The def[...]

Chapter 3: Manage Menu 74 The encryption p arameters are describ ed in the following sections:  “S tatic WEP” on pa ge 74  “WP A Personal” on page 75 7. After configuring the encryp tion settings, click the Update button to activate and save your changes on the access point. 8. Log off to end your management session on the access poin[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 75 WPA Personal The WP A Personal parameters are sh own in Figure 22 and described in T able 10 on p age 76. Figure 22. WPA Personal on WDS Bridges WEP Key Enter a WEP key in the field. Y ou may enter only one key . The key length and type settings determine the leng th and format of the keys. Here a[...]

Chapter 3: Manage Menu 76 T able 10. WP A Personal on WDS Links Field Description SSID Enter a name for the new WDS link. The SSID should be dif ferent from all the other SSIDs in the network. Y ou must enter the same SSID on both access points of the bridge. The SSID can be up to 32 alphanume ric characters. Key Enter a shared key for the WDS brid[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 77 Configuring the MAC Address Filter The MAC address filter is used to control which wireless clients ca n access your network through the access point. Yo u configure the filter by entering the MAC addresses of the wirele ss clients whose association requests are to be accepted or reject ed by the [...]

Chapter 3: Manage Menu 78 Figure 23. Configure MAC Filtering of Client Sta tions Window 2. For the Filter parameter, select one of t he following:  Allow only stations in list: Select this opt ion if you want the access point to accept association requests from the wire less clients whose MAC addresses you enter in the filter, an d to reject ass[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 79 8. Click the Update button in the wind ow to activate and save your changes. At this point, the access point begin s to accept or reject association requests from the wireless clients, as defined by the filter .[...]

Chapter 3: Manage Menu 80 Generating Event Messages for Unknown Access Points The access point can alert yo u with event messages if it detects unknown access points. It stores the messa ges in the event log and can also send them to a syslog server on your network. Figure 24 is an example of the message. Figure 24. Event Message for Unknown Access[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 81 Figure 25. Configure Pre- Configured Rogue AP Window 2. Click the Enabled dialog circles fo r the AP Detectio n for Radio options. Radios 1 and 2 are the 2.4 and 5 GHz radios, respectively. Y ou may activate one or both radio detections. If you are only interested in receiving event messages of u [...]

Chapter 3: Manage Menu 82 7. Click the Update button t o activate and save your cha nges on the access point. The access point test s for unknown access point s when you click the Update button and, if it finds an unknown device, enters an event message in the event log and sends the message to the syslog server . The access point repeat s the test[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 83 Configuring the Access Point f o r the Optional AT-UWC Program The optional AT-UWC Unified Wireless Controller is a mana gement program for the AT-TQ2450 Access Point s. It lets you centralize the task of managing the access points in your n etwork. To use the program, you install it on o ne of yo[...]

Chapter 3: Manage Menu 84 2. Click the Enabled dialog circle for the Managed AP Administrative Mode parameter. This is the default setting. 3. Enter the IP addresses or domain names of up to four controllers in the Controller IP Address fields . The co ntrollers are management workstations that have the AT-UWC program. The access point queries the [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 85 9. For the WDS Managed Ethernet Po rt parameter, do one of the following:  If you are configuring the root access poin t, click the Enabled dialog circle to enable the LAN port o n the device. The LAN port must be enabled on the root device.  If you are configuring a satellite unit an d the [...]

Chapter 3: Manage Menu 86 Note If the access point is successful in cont acting a controller, your we b browser management session is interrupt ed. 12. To continue managing the device, you must use the controller. Disabling the Controller Client This procedure explains how to disable the controller client and return the device to the stand-alone mo[...]

87 Chapter 4 Cluster Menu This chapter describes the management functions of the Cluster menu. The chapter contains the following section s:  “Overview” on page 88  “Planning the Cluster” on p age 95  “Creating or Adding Access Point s to a Cluster” on pa ge 96  “Managing the Access Point s of the Cluster” on p age 99 ?[...]

Chapter 4: Cluste r Menu 88 Overview A cluster is a group of two or more AT-TQ245 0 Access Points that have similar configurations and are manage d as a single unit. When you change a parameter on one unit of a cluster, your change is automatically communicated to the o ther units, wh ich change the same para meter. This can simplify the task of ma[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 89 Manage Ethernet Settings None - MAC Address - Management VLAN ID - Untagged VLAN - Untagged VLAN ID - Connection T ype - S tatic IP Ad dress - Subnet Mask - Default Gateway - DNS Nameservers - Directed Broadcast ICMP Reply Wireless Settings - Radio (On or Off) - Mode - S tation Isolation - MAC Add[...]

Chapter 4: Cluste r Menu 90 Pre-configured Rogue AP - AP Detection for Radio - Rogue AP Interval - Access Points List Managed Access Point None - Managed AP Administrative Mode - Controller IP Address - Base IP Port - Pass Phrase - WDS Managed Mode - WDS Managed Ethernet Port - WDS Group Password Cluster Access Points None - Location - Cluster Name[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 91 Neighboring Access Points - AP Detection for Radio 1 - AP Detection for Radio 2 This menu selection only displays the neighboring access points of the cu rrent access point. T o view the neighboring access points of the clust er , refer to “V iewing the Neighboring Access Points of the Cluster?[...]

Chapter 4: Cluste r Menu 92 SNMP -SNMP (Enabled or Disabled) -Read-only community name - Port Number the SNMP agent will listen to - Allow SNMP set requests - Read-write community name - Restrict the source of SNMP requests to only the designated hosts or subnet s - Hostname, address, or subnet of Network Management System - Community name for trap[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 93 Here are the guidelines to creating a cluster of access points:  You should only use this feature on access po ints that are to have identical shared parameters.  A cluster can have up to sixteen access points.  The access points of a cluster share many parameter settings, but operate as [...]

Chapter 4: Cluste r Menu 94 match the settings of the units in the existing cluster and then joins the cluster.  The access points of a cluster must be assigned a name. The name must be the same on all the units.  You may create more than one cluster in a subnet by giving the clusters different names.  You may manage the access points by s[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 95 Planning the Cluster When you create a new clu ster, it is important to consider the order in which you enable the feature on the access points. This is particularly true if you have already configured t he settings of one of the units. If you want the other units to adopt the con figuration of th[...]

Chapter 4: Cluste r Menu 96 Creating or Adding Acce ss Points to a Cluster To create a cluster or add access points to an e xisting cluster, perform the following procedure: 1. Select Access Points from the Cluster menu. The access point displays the “Manage a ccess point s in the cluster” window , shown in Figure 27. Figure 27. Manage Access P[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 97 System Location field in the “Provi de basic settings” window, sh own in Figure 5 on page 26. 3. Select the Cluster Name field and enter the name of the cluster. If th e access point is the first member of a new cluster, en ter a new name. If the access point is to be a member of an existin g [...]

Chapter 4: Cluste r Menu 98 Figure 28. Active Cluster in the Manage Access Poin ts in the Cluster Window 7. Any changes you now make to the shared parameter settings of the access point are transferred to the other units in the cluster. 8. To end your management session o f the cluster, click Log Off in the upper right corner of the window. 9. To a[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 99 Managing the Access Po ints of the Cluster To manage the access points of the cluster, pe rform the following procedure: 1. Start a management session on any unit in the clust er. 2. Adjust the parameters on the unit. Your changes to the shared parameters on the access p oint are automatically tra[...]

Chapter 4: Cluste r Menu 100 Removing an Access Point from a Cluster To remove an access point from a clu ster, perform this procedure: 1. Start a management session on the unit. 2. Select Access Points from the Cluster menu. The access point displays the “Manage a ccess point s in the cluster” window , shown in Figure 27 on p age 96. 3. Click [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 101 Viewing the Wireless Clients of the Cluster You may view information about the wireless clients o f the access points of the cluster by selecting Sessions from th e Cluster menu. This displays the “Manage sessions a ssociated with the cluster” window. An examp le of the window is shown in Fig[...]

Chapter 4: Cluste r Menu 102 You may sort the information by column . For instance, clicking the Signal label sorts the entries by signa l strength. To display only one statistic at a time in th e table, use the Display pull- down menu and selected the desired statistic. Then click Go. Signal Displays the str ength of the signal received by the wir[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 103 Using Automatic Channel Assignments The automatic channel assignment feature can improve the pe rformance of your wireless network because it tests for interfer ence on the radios of the access points in the cluster and au tomatically changes the channel assignments of the radios to reduce or eli[...]

Chapter 4: Cluste r Menu 104 2. To start the automatic channel as signments feature, click th e Start button. The window displays new options, shown in Figure 3 1. Figure 31. Automatically Manage Cha nnel Assignments Window - Automatic Channel Assignment Enabled 3. Configure the two parameters in th e Advanced section of the window. The parameters [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 105 4. After adjusting the parameters, click the Update button to activate and save your changes on the access poin t. 5. If you do not want an access point in the cluster to change its radio channels as part of the automatic ch annel assign ments feature, click the corresponding Locked dialo g box i[...]

Chapter 4: Cluste r Menu 106 Disabling Automatic Channel Assignments To disable automatic channel assignmen ts on the access poin ts of the cluster, perform the following pro cedure: Note Disabling automatic channel assignmen ts is shared among the access points of the cluster. Disablin g it on one un it disables it on all units. 1. Select Channel [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 107 Viewing the Neighboring Acce ss Points of the Cluster To view the neighboring access point s of the cluster, select Wireless Neighborhood from the Cluster men u to display the “View neighboring access points” window. An exa mple of the window is shown in Figure 32. Figure 32. View Neighboring[...]

Chapter 4: Cluste r Menu 108 Colors represent the signal strength s between the access p oints and are defined in Table 15. You may limit the table to cluste r members or non-cluster members by clicking one of the Display Neighbori ng APs dialog circles above the table. Click In cluster to rest rict the table to only the VAPs of the cluster members[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 109 T able 16. Neighbor Det ails Window Column Description SSID Displays the SSID of a remote access point or VAP. MAC Address Displays the MAC address of a remote radio. Channel Displays the radio channel. Rate Displays the rate of transmission (Mbp s). Signal Displays the signal strength (dB). Beac[...]

Chapter 4: Cluste r Menu 110[...]

111 Chapter 5 S tatus Menu This chapter describes the management functions of the Status menu. The chapter contains the following sections:  “Viewing the Associated Client s of an Access Point” on page 1 12  “Viewing Event Messages” on p age 1 14  “Viewing Neighboring Access Point s” on page 120  “Displaying the IP Address[...]

Chapter 5: St atus Menu 112 Viewing the Associated Clie nts of an Access Point To view a list of the associated clients on the access point and the amount of traffic, select Client Associati ons Settings from the Status menu. The menu option displays the “View list of currently associate clien t stations” window. An example of the wi ndow is sh[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 113 St a t u s Authenticated Displays whether a client has been authenticated. (This column does not display IEEE802.1x authentication st atus, but the underlying st atus, which is independent of the security level.) Associated Displays whether a client is associated with the access point. From S tat[...]

Chapter 5: St atus Menu 114 Viewing Event Messages A wireless access point is a comple x p iece of network equipment that includes both hardware and software components. Multiple software features operate simultaneously, intero perating with each other and processing large amounts of network tra ffic. It is often difficult to determine exactly what[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 115 using non-volatile memory for this purpose can prematurely wear out the memory, which can lead to performance degradatio n of the unit. For this reason, event messages should only be stored in non-volatile memory when you are troubleshooting a network p roblem, and only for short periods of time.[...]

Chapter 5: St atus Menu 116 Figure 35. View Events Generated by this Access Poin t Window The system messages are displayed in a table in the Events section of the window, from newest to oldest. Th e columns in the table are described in Table 18. The table has two buttons:  Refresh - You may use this button to upda te the table with the latest [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 117 Configuring the Event Log You can configure the following parameters of the event log :  Whether the event messages are stored in vo latile or non-volatile memory.  The severity of the displayed message s.  The number of displayed messages.  Whether all the messages are assig ned the [...]

Chapter 5: St atus Menu 118 5. If you want all messages to be assigned the f acility 0, kernel messages, to make them compatible with t he AT-TQ2403 Access Point, click the Enabled dialog circle for the TQ2 403 Compatible parameter. If you want the facility co des of the messages to be based on the services of the management software, click the Dis[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 119 4. In the Relay Options section of the wind ow, click the Enabled dialog circle for the Relay Log option. You have to enab le the feature before you can configure its parameters. 5. In the Relay Options sect ion of the window, select the Rela y Host field and enter the IP address or DNS name of t[...]

Chapter 5: St atus Menu 120 Viewing Neighboring Access Points You can view basic information and statistics about other access points within range of the access point you are managing by selecting the Neighboring Access Points option fr om the Sta tus menu. The window is shown in Figure 36. Figure 36. View Neighboring Access Points Window You may u[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 121 T ype Indicates the type of de vice: AP: Indicates that the neighboring device is an access point t hat supports the IEEE 802.1 1 Wireless Networking Framework in Infrastructure Mode. Ad hoc: Indicates that the neighboring device is operating in Ad hoc mode to directly communicate with other Ad h[...]

Chapter 5: St atus Menu 122 Signal Displays signal strength. Y ou may view the strength in decibels (dBm) by placing the mouse pointer over the bars. Beacons Displays the total number of beacons received from the neighboring acce ss point since it was discovered. Last Beacon Displays the date and time of the most recent beacon from the neighboring [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 123 Displaying the IP Addres ses of AT-UWC Programs If you want to use the optional AT-UWC Unified W ireless Controller program to manage the access po int, you have to configure the de vice with the IP addresses or domain names of the management workstation s that have the program. There are two way[...]

Chapter 5: St atus Menu 124 Displaying Statistics You can display status information and statistics about the LAN port and radios by selecting Transmit Receive Settings from th e Status menu. The selection displays the “View transmit and receive statistics for this access point” window. The window has three ta bles.  The first table displays[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 125 The columns are described in Table 20. The Transmit statistics table is shown in Figure 39. Figure 39. Transmit Statistics Tabl e of the View Transmit and Receive Statistics for this Access Point Window T able 20. S tatus T able Informa tion Column Description Interface Displays the access point [...]

Chapter 5: St atus Menu 126 The columns are described in Table 21. The Receive statistics table is shown in Figure 40. Figure 40. Receive Statistics Table of the View Transmit and Receive Statistics for this Access Point Window T able 21. T ransmit S tatistics T able Column Description Interface Displays the access point interfaces. T otal p ackets[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 127 The columns are described in Table 22. T able 22. Receive S tatistics T able Column Description Interface Displays the access point interfaces. T otal p ackets Displays the total number of p ackets the interfaces have received. T otal bytes Displays the total n umber of bytes the interfaces have [...]

Chapter 5: St atus Menu 128 Viewing Basic IP and Radio Information To view basic configurati on settings about the LAN po rt and radios, select the Interfaces selection from the Status menu. The se lection displays the “View settings for network interfaces” window, shown in Figure 41. Figure 41. View Settings for Network Interfaces Window The t[...]

129 Chapter 6 Services Menu This chapter describes the management functions of the Services menu. The chapter contains the following section s:  “Configuring Quality of Service” on p age 130  “Configuring SNMPv1 and v2c” on p age 137  “Enabling or Disabling the LEDs” on p age 144  “Configuring the HTTP Se rver” on page 1[...]

Chapter 6: Services Men u 130 Configuring Quality of Service The access point has four QoS egre ss queues and four ing ress queues for each radio. You may adjust parameters that con trol the manner in which the device stores and handles packe ts in the queues. You should not change the values from their d efault values unless you are familiar with [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 131 Figure 42. Modify QoS Queue Parameters T able 23. Modify QoS Queue Pa rameters Window Column Description AP EDCA Parameters Queue S pecifies the four egress queues: Data 0 (V oice): High priority queue, with minimum delay . The queue is used to store time-sensitive data, such as VOIP and streamin[...]

Chapter 6: Services Men u 132 Data 2 (best ef fort): Medium priority queue, with minimum throughput and delay . The queue is used to store most traditional IP data. Data 3 (Background ): Lowest priority queue, with high throughput. This queue is used for bulk dat a that requires maximum throughput and is not time- sensitive, such as FTP pa ckets. A[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 133 cwMax (Maximum Contention Window) S pecifies the maximum contention window , which is the upper limit (in milliseconds) for doubling the rand om backoff va lue. The doubling continues until either the data fra me is sent or the maximum contention size is reache d. Once the maximum contention wind[...]

Chapter 6: Services Men u 134 WMM is enabled when the dialog box has a check mark and disabled wh en the dialog box is empty . The default setting is enabled. S tation EDCA Parameters Queue S pecifies the four ingress queues: Data 0 (V oice) - High priority queue, with minimum delay . The queue is used to store time-sensitive dat a, such as VOIP an[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 135 The first random number the access point generates will be between 0 and this number . If the first random backof f wait time expires before the dat a frame is sent, a retry counter is increased and the random backoff va lue (window) is doubled. Doubling continues until the size of the random bac[...]

Chapter 6: Services Men u 136 Other QoS Settings No Acknowledgement Controls whether the access point acknowledges frames that have QosNoAck for their service class values. The possible settings are described here: On: The access point does not acknowledge frames that have QosNoAck for their service class values. Off : The access point acknowled ge[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 137 Configuring SNMPv1 and v2c You may use SNMPv1 and v2c to manage the access point and receive traps from the unit. Here are th e guidelines to managi ng the device with SNMP:  You can use SNMP to manage only a subset of the features o f the device. You have to use the web browser interf ace to [...]

Chapter 6: Services Men u 138 Figure 43. SNMP Configur ation Window 2. Click the Enabled dialog circle to enable SNMP or the Disabled dialog circle to disable it. You must en able SNMP before you can configure the parameter settings. 3. If you enabled SNMP, configure the parameters, as needed. The fields in the window are described in Table 24 on p[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 139 T able 24. SNMP Field Description SNMP Enabled/Disabled Use this opt ion to activate or deactivate SNMP on the access point. The options are explained here: Enabled: Check this option to activate SNMP and allow managers to use it to view and configure the parame ter settings on the access point. [...]

Chapter 6: Services Men u 140 Port number the SNMP agent will listen to Use this parameter to spe cify the port number for SNMP . The range is 1 to 65535. The default is 161. Allow SNMP set requests Use this parameter to eith er permit or deny managers to use the read-write community string to change the parameter sett ings of the access point. The[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 141 The community string is case sensitive. Y ou may not leave the field empty . The default community string is “private.” Restrict the source of SNMP requests to only the designated host s or subnets Use this option to increase the security of the access point by restricting the use of SNMP man[...]

Chapter 6: Services Men u 142 Y o u may specify a subnet to allow all management workst ations in the subnet to use SNMP to access the device. The subnet is specified in this format: address/mask Y ou may specify the actual mask or the mask length. Here is an example of a subnet specified by the actu al mask: 149.24.42.0/255.255.255.0 Here is the s[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 143 T rap type to send (continued) - Filtered ST A: This trap is sent when the access point blocks an unauthorized wireless client from accessing the network because the client is not authorized by the MAC address filter . - RADIUS Authentication (Success): This trap is sent when a wireless clien t s[...]

Chapter 6: Services Men u 144 Enabling or Disabling the LEDs You may turn off the LEDs o n the front panel of the a ccess point when you are not using them to monitor or trouble shoot the device. The default setting for the LEDs is on. To turn the LEDs on or off, perform the following procedure: 1. From the Services menu, select LED. The unit displ[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 145 Configuring the HTTP Server The following procedures explain how to en able and disable the HTTP server. You may use the server to manage the access point with your we b browser on your computer. The HTTP server is a non-secure management method. The packets exchanged between your web browser and[...]

Chapter 6: Services Men u 146 Disabling the HTTP Server The following procedure explains how t o disable the HTTP server on the access point. Please review the foll owing guidelines before performing the procedure:  If you disable the HTTP server while managing the access point with HTTP, your management sess ion is interrupted. To contin ue man[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 147 Configuring the HTTPS Server The following procedures explain how to en able and disable the HTTPS server. You may use the server to manage the access point with your we b browser on your computer. Managing the device with HTTPS is more secure that HTTP because your web browser and the access poi[...]

Chapter 6: Services Men u 148 At this point, your web browser may display a se curity warning message to indicate that it does not consider th e access point, which created its own HTTPS certificate, as a trusted certificate authorit y . If you see a warning message, yo u should be able to close it and manage the device. T o eliminate the message, [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 149 Configuring the Maximum Number of Active Management Sessions This procedure explains how to config ure the maximum number of active management sessions the access point supports at one time. The range is one to ten sessions. The default is one session. You might want to consider increasing the pa[...]

Chapter 6: Services Men u 150 Configuring the Management Session Timer You should always conclude your manag ement sessions of the access point by logging off so that if you leave your computer unatt ended, someone cannot use it to make unauthorized changes to the parameter settings of the device. If you forget to log off, the access po int has a t[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 151 Manually Setting the Date and Time If the access point does not have access to an SNTP server, you may set the date and time manually. The unit a dds the date and time to lo g messages and SNMP traps. Note If you configure the date and time manually, you h ave to reconfigure them whenever the acc[...]

Chapter 6: Services Men u 152 6. If the location of the access point observes daylight savings time, click the dialog box for the Adjust Time for Daylight Sa vings parameter. The window displays the fields in Figure 50. Figure 50. Daylight Savings Time Fields If the area does not observe Da ylight Savings time, leave the dialog box empty and go to [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 153 Setting the Date and Time with the Network Time Protocol Client The access point has a Network Time Pr otocol (NTP) client. The unit uses the client to obtain the date and time fro m an SNTP server on your network or the Internet. Th e access point adds the date and time to log messages and SNMP [...]

Chapter 6: Services Men u 154 3. Select the NTP Server field and enter the IP address or h ostname of the SNTP server. You may specify only o ne server. If you are specifying the server by its hostname, p lease observe these guidelines:  The first character must be a letter or number. It cannot be a special character.  The last character cann[...]

155 Chapter 7 Maintenance Menu This chapter describes the management fu nctions of the menu selections in the Maintenance menu. The chapter contains t he following sections:  “Restoring the Default Settings to the Access Po int” on page 15 6  “Downloading the Configuration from the Access Point to Y our Computer” on page 15 8  “R[...]

Chapter 7: Maintena nce Menu 156 Restoring the Default Setti ngs to the Access Point This procedure explains how to restore the default set tings on the access point. Please review the following information before perfo rming the procedure:  The manager name and password are reset to “ma nager” and “friend”, respectively.  If the acce[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 157 Figure 52. Manage this Access Point’s Configuration Window 2. Click the Reset button in the To Re store the Factory Default Configuration section of the window. The device displays a confirmation p rompt. 3. Click OK to restore the default settings of Cancel to cancel the procedure. 4. If you c[...]

Chapter 7: Maintena nce Menu 158 Downloading the Configuration fr om the Access Point to Your Computer This procedure explains how to downlo ad the configuration o f the access point as a file to your computer or a network server. You migh t perform this procedure to maintain a history of the configuratio ns of the unit so that you can easily retur[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 159 Restoring a Configuratio n to the Access Point This procedure explains how to restore a configuration to the access point. You might perform this procedure to re store a previous configuration to th e device or to configure multiple access points with th e same configuration. Here are the gu idel[...]

Chapter 7: Maintena nce Menu 160 Rebooting the Access Point This section explains how to reboot the access point. You might reboot the device if it is experiencing a problem. Caution The access point does not forward network traffic while it reboot s. Some network traffic may be lost. To reboot the access point, perform the following procedure: 1. [...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 161 Enabling or Disabling the Reset Button This section explains how to ena ble or disable the Reset button on the rear panel of the access point . The Reset button is used to restore the default settings to the device. The defau lt setting for the button is enabled. If the unit is installed in a non[...]

Chapter 7: Maintena nce Menu 162 Switching the Primary and Seconda ry Management Software Images The access point maintains primary and secondary images of th e management software in flash memo ry. The primary image is used during normal operations. If the access p oint encounters a problem with the primary image when it is powered on or reset, it[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 163 2. Click the Switch button. The access point displays a confirmation prompt. 3. Click OK to continue with the pr ocedure or Can cel to cancel it. If you click OK, the access point beg ins the pro cess of switching the images. Caution The unit does not forward network traffic for about two minutes[...]

Chapter 7: Maintena nce Menu 164 Uploading New Versions of the Ma nagement Software to the Access Point Allied Telesis may release new versi ons of the management software on the company’s web site for customers who want to upgrade the firmware on their access points. This procedure explains how to upload new firmware to the a ccess point. Please[...]

AT-TQ2450 Wireless Acce ss Poi nt User’s Guide 165 The access point displays the “M anage Firmware” window sho wn in Figure 53 on page 162. 2. Click the Browse button next to the New Firmwa re Image field and locate the new image file on your computer or network server. 3. Click the Upgrade button. The access point displays a confirmation pro[...]

Chapter 7: Maintena nce Menu 166[...]