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VigorAP 920R Series User’s Guide
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VViiggoorrAAPP 992200RRPP SSeerriieess
RRuuggggeeddiizzeedd OOuuttddoooorr AAPP w
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m
Version: 1.0
Firmware Version: V1.2.1
Date: June 5, 2018
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Intellectual Property Rights (IPR) Information
Copyrights
Trademarks
© All rights reserved. This publication contains information that is protected by copyright.
No part may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language without written permission from the copyright holders.
The following trademarks are used in this document:
Microsoft is a registered trademark of Microsoft Corp.
Windows, Windows 95, 98, Me, NT, 2000, XP, Vista, 7 and Explorer are trademarks of
Microsoft Corp.
Apple and Mac OS are registered trademarks of Apple Inc.
Other products may be trademarks or registered trademarks of their respective
manufacturers.
Safety Instructions and Approval
Safety
Instructions
Warranty
Read the installation guide thoroughly before you set up the modem.
The modem is a complicated electronic unit that may be repaired only be authorized
and qualified personnel. Do not try to open or repair the modem yourself.
Do not deploy the cable for LAN connection outdoor to prevent electronic shock
hazards.
Keep the package out of reach of children.
When you want to dispose of the modem, please follow local regulations on
conservation of the environment.
We warrant to the original end user (purchaser) that the modem will be free from any defects
in workmanship or materials for a period of two (2) years from the date of purchase from the
dealer. Please keep your purchase receipt in a safe place as it serves as proof of date of
purchase. During the warranty period, and upon proof of purchase, should the product have
indications of failure due to faulty workmanship and/or materials, we will, at our discretion,
repair or replace the defective products or components, without charge for either parts or
labor, to whatever extent we deem necessary tore-store the product to proper operating
condition. Any replacement will consist of a new or re-manufactured functionally equivalent
product of equal value, and will be offered solely at our discretion. This warranty will not
apply if the product is modified, misused, tampered with, damaged by an act of God, or
subjected to abnormal working conditions. The warranty does not cover the bundled or
licensed software of other vendors. Defects which do not significantly affect the usability of
the product will not be covered by the warranty. We reserve the right to revise the manual
and online documentation and to make changes from time to time in the contents hereof
without obligation to notify any perso n of such revi si o n o r chan ges.
Be a Registered
Owner
Firmware & Tools
Updates
Web registration is preferred. You can register your Vigor modem via
http://www.draytek.com.
Due to the continuous evolution of DrayTek technology, all modems will be regularly
upgraded. Please consult the DrayTek web site for more information on newest firmware,
tools and documents.
http://www.draytek.com
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TTaabbllee ooff CCoonntteennttss
Introduction .................................................................................................1
1.1 Introduction ............................................................................................................................. 1
1.2 LED Indicators and Connectors.............................................................................................. 2
1.3 Mounting the Access P oint...................................................................................................... 3
1.3.1 Antennas Installation ........................................................................................................ 3
1.3.2 Connecting Ethernet Cable(s).......................................................................................... 4
1.3.3 Access Point Installation – Pole Mount ............................................................................ 6
1.3.4 Grounding Access Point................................................................................................... 8
1.3.5 Powering Access Point.....................................................................................................9
Network Configuration..............................................................................11
2.1 Windows 7 IP Address Setup.................................................................................................11
2.2 Windows 2000 IP Address Setup.......................................................................................... 13
2.3 Windows XP IP Address Setup............................................................................................. 14
2.4 Windows Vista IP Address Setup.......................................................................................... 15
2.5 Accessing to Web User Interface.......................................................................................... 16
2.6 Changing Password.............................................................................................................. 17
2.7 Quick Start Wizard................................................................................................................ 18
2.7.1 Configuring Wireless Settings – General........................................................................ 18
2.7.2 Configuring 2.4GHz Wireless Settings Based on the Operation Mode.......................... 19
2.7.3 Configuring 5GHz Wireless Settings Based on the Operation Mode............................. 25
2.7.4 Finishing the Wireless Settings Wizard.......................................................................... 29
2.8 Online St atus......................................................................................................................... 30
Advanced Configuration.................................................................................31
3.1 Operation Mode .................................................................................................................... 32
3.2 LAN .......................................................................................................................................33
3.2.1 General Setup................................................................................................................. 33
3.2.2 Port Control..................................................................................................................... 36
3.3 Central AP Management.......................................................................................................37
3.3.1 General Setup................................................................................................................. 37
3.3.2 APM Log......................................................................................................................... 38
3.3.3 Function Support List...................................................................................................... 38
3.3.4 Overload Management................................................................................................... 39
3.3.5 Status of Settings............................................................................................................ 40
3.4 General Concepts for Wireless LAN (2.4GHz/5GHz)........................................................... 41
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3.5 Wireless LAN (2.4GHz) Settings for AP Mode...................................................................... 44
3.5.1 General Setup................................................................................................................. 45
3.5.2 Security........................................................................................................................... 47
3.5.3 Access Control................................................................................................................ 50
3.5.4 WPS................................................................................................................................ 51
3.5.5 Advanced Setting............................................................................................................ 52
3.5.6 AP Discovery.................................................................................................................. 54
3.5.7 WMM Configuration........................................................................................................ 55
3.5.8 Bandwidth Management................................................................................................. 57
3.5.9 Airtime Fairness.............................................................................................................. 58
3.5.10 Station Control.............................................................................................................. 60
3.5.11 Roaming ....................................................................................................................... 61
3.5.12 Band Steering............................................................................................................... 63
3.5.13 Station List.................................................................................................................... 68
3.6 Wireless LAN Settings for AP Bridge-Point to Point/AP Bridge-Point to Multi-Point Mode .. 70
3.6.1 General Setup................................................................................................................. 70
3.6.2 Advanced Setting............................................................................................................ 72
3.6.3 AP Discovery.................................................................................................................. 73
3.6.4 WDS AP Status .............................................................................................................. 75
3.7 Wireless LAN (2.4GHz) Settings for AP Bridge-WDS Mode................................................. 76
3.7.1 General Setup................................................................................................................. 77
3.7.2 Security........................................................................................................................... 79
3.7.3 Access Control................................................................................................................ 82
3.7.4 WPS................................................................................................................................ 83
3.7.5 Advanced Setting............................................................................................................ 85
3.7.6 AP Discovery.................................................................................................................. 86
3.7.7 WDS AP Status .............................................................................................................. 88
3.7.8 WMM Configuration........................................................................................................ 89
3.7.9 Bandwidth Management................................................................................................. 91
3.7.10 Airtime Fairness............................................................................................................ 92
3.7.11 Station Control.............................................................................................................. 94
3.7.12 Roaming ....................................................................................................................... 95
3.7.13 Band Steering............................................................................................................... 97
3.7.14 Station List.................................................................................................................. 102
3.8 Wireless LAN (2.4GHz) Settings for Universal Repeater Mode......................................... 104
3.8.1 General Setup............................................................................................................... 105
3.8.2 Security......................................................................................................................... 107
3.8.3 Access Control.............................................................................................................. 110
3.8.4 WPS.............................................................................................................................. 111
3.8.5 Advanced Setting.......................................................................................................... 112
3.8.6 AP Discovery................................................................................................................ 114
3.8.7 Universal Repeater....................................................................................................... 115
3.8.8 WMM Configuration...................................................................................................... 117
3.8.9 Bandwidth Management............................................................................................... 119
3.8.10 Airtime Fairness.......................................................................................................... 120
3.8.11 Station Control............................................................................................................ 122
3.8.12 Roaming ..................................................................................................................... 123
3.8.13 Band Steering............................................................................................................. 125
3.8.14 Station List.................................................................................................................. 130
3.9 Wireless LAN (5GHz) Settings for AP Mode....................................................................... 132
3.9.1 General Setup............................................................................................................... 132
3.9.2 Security......................................................................................................................... 134
3.9.3 Access Control.............................................................................................................. 137
3.9.4 WPS.............................................................................................................................. 138
3.9.5 Advanced Setting.......................................................................................................... 139
3.9.6 AP Discovery................................................................................................................ 141
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3.9.7 WMM Configuration...................................................................................................... 142
3.9.8 Bandwidth Management............................................................................................... 143
3.9.9 Airtime Fairness............................................................................................................ 144
3.9.10 Station Control............................................................................................................ 146
3.9.11 Roaming ..................................................................................................................... 147
3.9.12 Station List.................................................................................................................. 149
3.10 Wireless LAN (5GHz) Settings for Universal Repeater Mode ..........................................151
3.10.1 General Setup............................................................................................................. 151
3.10.2 Security....................................................................................................................... 153
3.10.3 Access Control............................................................................................................ 156
3.10.4 WPS............................................................................................................................ 157
3.10.5 Advanced Setting........................................................................................................ 158
3.10.6 AP Discovery.............................................................................................................. 159
3.10.7 Universal Repeater..................................................................................................... 161
3.10.8 WMM Configuration.................................................................................................... 163
3.10.9 Bandwidth Management............................................................................................. 165
3.10.10 Airtime Fairness........................................................................................................ 166
3.10.11 Station Control.......................................................................................................... 168
3.10.12 Roaming ................................................................................................................... 169
3.10.13 Station List................................................................................................................ 171
3.11 RADIUS Setting................................................................................................................. 173
3.11.1 RADIUS Server........................................................................................................... 173
3.11.2 Certificate Management ............................................................................................. 174
3.12 Applications....................................................................................................................... 176
3.12.1 Schedule..................................................................................................................... 176
3.12.2 Apple iOS Keep Alive ................................................................................................. 178
3.12.3 Wi-Fi Auto On/Off ....................................................................................................... 179
3.12.4 Sensor......................................................................................................................... 180
3.13 Mobile Device Management ............................................................................................. 183
3.13.1 Detection..................................................................................................................... 183
3.13.2 Policies ....................................................................................................................... 184
3.13.3 Statistics ..................................................................................................................... 185
3.14 System Maintenance......................................................................................................... 185
3.14.1 System Status............................................................................................................. 186
3.14.2 TR-069........................................................................................................................ 187
3.14.3 Administrator Password.............................................................................................. 189
3.14.4 Configuration Backup ................................................................................................. 190
3.14.5 Syslog/Mail Alert......................................................................................................... 192
3.14.6 Time and Date............................................................................................................ 194
3.14.7 SNMP.......................................................................................................................... 195
3.14.8 Management............................................................................................................... 196
3.14.9 Reboot System........................................................................................................... 197
3.14.10 Firmware Upgrade.................................................................................................... 197
3.15 Diagnostics........................................................................................................................ 198
3.15.1 System Log................................................................................................................. 198
3.15.2 Speed Test ................................................................................................................. 198
3.15.3 Traffic Graph............................................................................................................... 199
3.15.4 Where am I................................................................................................................. 199
3.15.5 Data Flow Monitor....................................................................................................... 200
3.15.6 WLAN (2.4GHz) Statistics ..........................................................................................201
3.15.7 WLAN (5GHz) Statistics ............................................................................................. 202
3.15.8 Station Statistics......................................................................................................... 203
3.15.9 Interference Monitor.................................................................................................... 205
3.15.10 Station Airtime .......................................................................................................... 206
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3.15.11 Station Traffic Graph................................................................................................. 207
3.15.12 Station Link Speed.................................................................................................... 208
3.16 Support Area..................................................................................................................... 208
Trouble Shooting.....................................................................................209
4.1 Checking If the Hardware Status Is OK or Not....................................................................209
4.2 Checking If the Network Connection Settings on Your Computer Is OK or Not ................. 210
4.3 Pinging the Modem from Your Computer............................................................................ 213
4.4 Backing to Factory Default Setting If Necessary ................................................................ 214
4.5 Contacting DrayTek............................................................................................................. 215
Index ...............................................................................................................................216
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IInnttrroodduuccttiioonn
NNoottee:: TThhiiss iiss aa ggeenneerriicc IInntteerrnnaattiioonnaall vveerrssiioonn ooff tthhee
uusseerr gguuiiddee.. SSppeecciiffiiccaattiioonn,, ccoommppaattiibbiilliittyy aanndd ffeeaattuurreess
vvaarryy bbyy rreeggiioonn.. FFoorr ssppeecciiffiicc uusseerr gguuiiddeess ssuuiittaabbllee ffoorr
yyoouurr rreeggiioonn oorr pprroodduucctt,, pplleeaassee ccoonnttaacctt llooccaall
ddiissttrriibbuuttoorr..
11..11 IInnttrroodduuccttiioonn
Thank you for purchasing VigorAP 920R series.
Easy install procedures allows any computer users to setup a network environment in very
short time - within minutes, even inexperienced users. Just follow the instructions given in
this user manual, you can complete the setup procedure and release the power of this access
point all by yourself!
VigorAP 920RP also is a Power over Ethernet Powered Device which adopts the technology
of PoE for offering power supply and transmitting data through the Ethernet cable.
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11..22 LLEEDD IInnddiiccaattoorrss aanndd CCoonnnneeccttoorrss
Before you use the Vigor modem, please get acquainted with the LED indicators and
connectors first.
AP920RP AP920R
LED Status Explanation
Off The system is not ready or has failed. ACT
Blinking The system is ready.
2.4G / 5G
Interface Description
Factory Reset Restore the default settings. Usage: Switch on the access point. Press and hold
Port PoE In
/ PoE In
Port PoE Out
(for AP920RP)
On Wireless function is ready.
Off Wireless function is not ready.
Blinking Data is being transmitted (sending/receiving).
reset button for at least 10 seconds. The router will restart with the factory
default configuration.
Before pressing the button, the cover should first be removed by rotating it with
a torque of 13 kgf-cm. After the access point has been reset, replace the cover
and lock it with the same amount of torque.
Connector for receiving power from another device.
Connector for supplying power to another device.
Note: For the sake of safety, keep the access point away from children
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11..33 MMoouunnttiinngg tthhee AAcccceessss PPooiinntt
The VigorAP can be pole mounted depending on the installation environment. This section
will guide you through installing the VigorAP.
Note: For the sake of personal safety, only trained and qualified personnel
should install this device.
11..33..11 AAnntteennnnaass IInnssttaallllaattiioonn
1. Remove the protective cap.
2. Insert the antennas and fasten them by rotating clockwise.
Warning:
Do not open the top cover of the device.
Installation during thunderstorms could be dangerous.
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11..33..22 CCoonnnneeccttiinngg EEtthheerrnneett CCaabbllee((ss))
Refer to the following steps to attach the Ethernet cable and waterproof head. (Take
VigorAP 920RP as an example.)
1. Remove the cable cover for Ethernet Port (e.g., Port 1 PoE In).
2. Before connecting, verify that the cable has a rubber seal and that it is not damaged.
Note: To prevent the enclosure from water leakage, make sure the Ethernet
cable gland and the rubber gasket are present and installed properly.
3. Inserting RJ-45 connector into the port.
4. Use an adjustable wrench and tighten the thread-lock sealing nut with torque 10
kgf-cm.
Warning:
Do not open the top cover of the device.
Installation during thunderstorms could be dangerous.
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RReeccoonnnneeccttiinngg EEtthheerrnneett CCaabbllee
1. Loosen the thread-lock sealing nut.
2. Loosen the clamping claw and seal.
3. Loosen the body and washer.
4. Remove the cable.
5. To reattach the cable, follow the above steps in reverse.
Note: The diameter for the Ethernet cable shall be limited between 4.3mm to
5.9mm.
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11..33..33 AAcccceessss PPooiinntt IInnssttaallllaattiioonn –– PPoollee MMoouunntt
1. Find a suitable location for installing the access point.
2. Select a mounting point on a pole.
3. Remove the mounting plate from the mount kit by removing the four mounting screws.
4. Attach the VigorAP920 to the mounting plate. Lock the screws with torque of 20
kgf-cm.
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5. Fasten the mount kit on the pole with nut screws and with torque of 20 kgf-cm.
6. Fasten the access point to the mount kit with screws (torque of 20 kgf-cm) as shown in
the following figure.
Note: Before connecting the access point to the mount kit, make sure it is
oriented with the LED indicators pointing downwards.
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11..33..44 GGrroouunnddiinngg AAcccceessss PPooiinntt
In outdoor installations and before powering the access point with AC power, VigorAP must
be grounded prior to wire installation.
1. Take out the ground cable from the mount kit.
Ground Lug
2. Insert a ground rod on the ground.
3. Strip the insulation for the ground lug.
4. Use the appropriate crimping tool to crimp the ground cable to the grounding lug.
5. Connect the ground rod and the VigorAP using the ground cable.
Note: Please consult an electrician if you are uncertain about the type of
grounding that is required.
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11..33..55 PPoowweerriinngg AAcccceessss PPooiinntt
VigorAP 920R/PR can be powered via the PoE input from an in-line power injector or a
suitably powered switch port.
Before powering VigorAP, you should:
Pay attention to local and national electrical codes.
Not place the power injector / VigorSwitch in outdoor environment without any
protection. Moisture might get into the power injector and cause a short circuit or
possible fire.
Not work on the system during periods of lighting activity to avoid the risk of electric
shock, and do not connect or disconnect the Ethernet cables under bad weather.
Below shows two examples of connecting power for VigorAP 920R and VigorAP 920PR.
Example 1: AP920R
Example 2: AP920RP
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Neett
N
After the network connection is built, the next step you should do is setup VigorAP 920RP
with proper network parameters, so it can work properly in your network environment.
Before you can connect to the access point and start configuration procedures, your
computer must be able to get an IP address automatically (use dynamic IP address). If it’s set
to use static IP address, or you’re unsure, please follow the following instructions to
configure your computer to use dynamic IP address:
For the default IP address of this AP is set “192.168.1.2”, we recommend you to use
“192.168.1.X (except 2)” in the field of IP address on this section for your computer.
If the operating system of your computer is…
Windows 7 - please go to section 2.1
Windows 2000 - please go to section 2.2
Windows XP - please go to section 2.3
Windows Vista - please go to section 2.4
22..11 WWiinnddoowwss 77 IIPP AAddddrreessss SSeettuupp
Click Start button (it should be located at lower-left corner of your computer), then click
Control Panel. Double-click Network and Internet, and the following window will appear.
Click Network and Sharing Center.
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Next, click Change adapter settings and click Local Area Connection.
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Then, select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
Under the General tab, click Use the following IP address. Then input the following
settings in respective field and click OK when finish.
IP address: 192.168.1.9
Subnet Mask: 255.255.255.0
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22..22 WWiinnddoowwss 22000000 IIPP AAddddrreessss SSeettuupp
Click Start button (it should be located at lower-left corner of your computer), then click
control panel. Double-click Network and Dial-up Connections icon, double click Local
Area Connection, and Local Area Connection Properties window will appear. Select
Internet Protocol (TCP/IP), then click Properties.
Select Use the following IP address, then input the following settings in respective field and
click OK when finish.
IP address: 192.168.1.9
Subnet Mask: 255.255.255.0
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22..33 WWiinnddoowwss XXPP IIPP AAddddrreessss SSeettuupp
Click Start button (it should be located at lower-left corner of your computer), then click
control panel. Double-click Network and Internet Connections icon, click Network
Connections, and then double-click Local Area Connection, Local Area Connection
Status window will appear, and then click Properties.
Select Use the following IP address, then input the following settings in respective field and
click OK when finish:
IP address: 192.168.1.9
Subnet Mask: 255.255.255.0.
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22..44 WWiinnddoowwss VViissttaa IIPP AAddddrreessss SSeettuupp
Click Start button (it should be located at lower-left corner of your computer), then click
control panel. Click View Network Status and Tasks, then click Manage Network
Connections. Right-click Local Area Netwrok, then select ‘Properties’. Local Area
Connection Properties window will appear, select Internet Protocol Version 4 (TCP /
IPv4), and then click Properties.
Select Use the following IP address, then input the following settings in respective field and
click OK when finish:
IP address: 192.168.1.9
Subnet Mask: 255.255.255.0.
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22..55 AAcccceessssiinngg ttoo WWeebb UUsseerr IInntteerrffaaccee
All functions and settings of this access point must be configured via web user interface.
Please start your web browser (e.g., Firefox).
1. Make sure your PC connects to the VigorAP 920RP correctly.
2. Open a web browser on your PC and type http://192.168.1.2. A pop-up window will
open to ask for username and password. Pease type “admin/admin” on
Username/Password and click OK.
Note 1: You may either simply set up your computer to get IP dynamically from the
router or set up the IP address of the computer to be in the same subnet as the IP
address of VigorAP 920RP.
If there is no DHCP server on the network, then VigorAP 920RP will have an
IP address of 192.168.1.2.
If there is DHCP available on the network, then VigorAP 920RP will receive
it’s IP address via the DHCP server.
3. The Main Screen will pop up.
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Note: If you fail to access to the web configuration, please go to “Trouble
Shooting” for detecting and solving your problem. For using the device properly, it
is necessary for you to change the password of web configuration for security and
adjust primary basic settings.
22..66 CChhaannggiinngg PPaasssswwoorrdd
1. Please change the password for the original security of the modem.
2. Go to System Maintenance page and choose Administration Password.
3. Enter the new login password on the field of Password. Then click OK to continue.
4. Now, the password has been changed. Next time, use the new password to access the
Web User Interface for this modem.
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22..77 QQuuiicckk SSttaarrtt WWiizzaarrdd
Quick Start Wizard will guide you to configure 2.4G wireless setting, 5G wireless setting
and other corresponding settings for Vigor Access Point step by step.
22..77..11 CCoonnffiigguurriinngg WWiirreelleessss SSeettttiinnggss –– GGeenneerraall
This page displays general settings (enable/disable wireless LAN 2.4GHz/5GHz) for the
operation mode selected.
Available settings are explained as follows:
Item Description
Wireless LAN
(2.4GHz)
Wireless LAN
(5GHz)
After finishing this web page configuration, please click Next to continue.
Check the box to enable WLAN 2.4GHz for VigorAP.
Operation Mode - There are four operation modes for wireless
connection. Settings for each mode are different.
Check the box to enable WLAN 5GHz for VigorAP.
Operation Mode - There are three operation modes for wireless
connection. Settings for each mode are different.
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22..77..22 CCoonnffiigguurriinngg 22..44GGHHzz WWiirreelleessss SSeettttiinnggss BBaasseedd oon
In this page, the advanced settings will vary according to the operation mode chosen on
2.7.1.
SSeettttiinnggss ffoorr AAPP
When you choose AP as the operation mode for wireless LAN (2.4GHz), you will need to
configure the following page.
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Available settings are explained as follows:
Item Description
Channel
Main SSID
Security Key
Enable Guest
Wireless
Means the channel frequency of the wireless LAN. The default
channel is 6. You may switch channel if the selected channel is
under serious interference. If you have no idea of choosing the
frequency, please select AutoSelect to let system determine for
you.
Set a name for VigorAP 920RP to be identified.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
Check the box to enable the guest wireless setting.
Such feature is especially useful for free Wi-Fi service. For
example, a coffee shop offers free Wi-Fi service for its guests
for one hour every day.
SSID – Set a name for VigorAP 920RP which can be identified
and connected by wireless guest.
Security Key – Set 8~63 ASCII characters or 8~63 ASCII
characters which can be used for logging into VigorAP 920RP
by wireless guest.
Enable Bandwidth Limit – Check the box to define the
maximum speed of the data uploading/downloading which will
be used for the guest connecting to Vigor device with the same
SSID.
Upload Limit – Scroll the radio button to choose the
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value you want.
Download Limit –Scroll the radio button to choose
the value you want.
Enable Station Control – Check the box to set the duration for
the guest connecting /reconnecting to Vigor device.
Connection Time –Scroll the radio button to choose
the value you want.
Reconnection Time –Scroll the radio button to
choose the value you want.
SSeettttiinnggss ffoorr AAPP BBrriiddggee--PPooiinntt ttoo PPooiinntt
When you choose AP Bridge-Point to Point as the operation mode for wireless LAN
(2.4GHz), you will need to configure the following page.
Available settings are explained as follows:
Item Description
AP Discovery
Phy Mode
Security
Peer MAC Address
VigorAP 920R Series User’s Guide
Click this button to open the AP Discovery dialog. VigorAP
920RP can scan all regulatory channels and find working APs in
the neighborhood.
Data will be transmitted via HTMIX mode.
Each access point should be setup to the same Phy Mode for
connecting with each other.
Select TKIP or AES as the encryption algorithm.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
Type the peer MAC address for the access point that VigorAP
920RP connects to.
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SSeettttiinnggss ffoorr AAPP BBrriiddggee--WWDDSS
When you choose AP Bridge-WDS as the operation mode for wireless LAN (2.4GHz), you
will need to configure the following page.
Available settings are explained as follows:
Item Description
AP Discovery
Click this button to open the AP Discovery dialog. VigorAP
920RP can scan all regulatory channels and find working APs in
the neighborhood.
Phy Mode
Data will be transmitted via HTMIX mode.
Each access point should be setup to the same Phy Mode for
connecting with each other.
Security
Select TKIP or AES as the encryption algorithm. Type the key
number if required.
Peer MAC Address
Type the peer MAC address for the access point that VigorAP
920RP connects to.
Main SSID
Security Key
Set a name for VigorAP 920RP to be identified.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
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SSeettttiinnggss ffoorr UUnniivveerrssaall RReeppeeaatteerr
When you choose Universal Repeater as the operation mode for wireless LAN (2.4GHz),
you will need to configure the following page.
Available settings are explained as follows:
Item Description
Universal Repeater Parameters
AP Discovery
Click this button to open the AP Discovery dialog. VigorAP
920RP can scan all regulatory channels and find working APs in
the neighborhood.
SSID / MAC Address
(Optional)
SSID means the identification of the wireless LAN. After
choosing one of the AP from AP Discovery window and
clicking OK, the settings (SSID and MAC Address) related to
the selected AP will be displayed on these fields automatically.
Later, VigorAP 920RP will be allowed to access Internet
through the selected AP, by using SSID displayed here.
Channel
Means the channel frequency of the wireless LAN. You may
switch channel if the selected channel is under serious
interference.
Security Mode
There are several modes provided for you to choose. Each mode
will bring up different parameters (e.g., WEP keys, Pass Phrase)
for you to configure.
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Encryption Type for
Open/Shared
This option is available when Open/Shared is selected as
Security Mode.
Choose None to disable the WEP Encryption. Data sent to the
AP will not be encrypted. To enable WEP encryption for data
transmission, please choose WEP.
WEP Keys - Four keys can be entered here, but only one key
can be selected at a time. The format of WEP Key is restricted to
5 ASCII characters or 10 hexadecimal values in 64-bit
encryption level, or restricted to 13 ASCII characters or 26
hexadecimal values in 128-bit encryption level. The allowed
content is the ASCII characters from 33(!) to 126(~) except '#'
and ','.
Encryption Type for
WPA/PS K and
WPA2/PSK
Security Key
Use the same SSID
and Security Key as
above
This option is available when WPA/PSK or WPA2/PSK is
selected as Security Mode.
Select TKIP or AES as the algorithm for WPA.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
Such feature is available for WPA/PSK or WPA2/PSK mode.
In general, under the network environment, same SSID and
security key can be used for the host (wireless client) and the
repeater (VigorAP 920RP) in Universal Repeater mode. Check it
to use the same SSID and security key configured as above.
SSID - SSID can be any text numbers or various special
characters. For VigorAP 920RP is set as “Repeater”, the purpose
of the device is to extend the Wi-Fi service. Therefore, the
characters set here will be regarded as “main SSID”. Other
wireless client can receive the wireless signal from VigorAP
920RP by using the SSID configured here.
Security - Set 8~63 ASCII characters or 64 Hexadecimal digits
which can be used for logging into VigorAP 920RP by other
wireless client.
Enable Guest
Check the box to enable the guest wireless setting.
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Wireless
SSID – Set a name for VigorAP 920RP. Wireless guest is
allowed to access into Internet via VigorAP 920RP with the
SSID configured here.
Security Key – Set 8~63 ASCII characters or 64 Hexadecimal
digits which can be used for logging into VigorAP 920RP by
wireless guest.
Enable Bandwidth Limit – Check the box to define the
maximum speed of the data uploading/downloading which will
be used for the guest connecting to Vigor device with the same
SSID.
Upload Limit –Scroll the radio button to choose the
value you want.
Download Limit –Scroll the radio button to choose
the value you want.
Enable Station Control – Check the box to set the duration for
the guest connecting /reconnecting to Vigor device.
Connection Time –Scroll the radio button to choose
the value you want.
Reconnection Time –Scroll the radio button to
choose the value you want.
After finishing this web page configuration, please click Next to continue.
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VigorAP 920RP offers 5GHz wireless connection capability. You can setup 5GHz features
in Quick Start Wizard first. Once the USB 5GHz wireless dongle connects to VigorAP
920RP, it can work immediately.
SSeettttiinnggss ffoorr AAPP
After finished the configuration for wireless LAN (2.4GHz) and click Next, you will need to
configure the following page if you choose AP as the operation mode for wireless LAN
(5GHz).
thhee OOppeerraattiioonn MMooddee
Available settings are explained as follows:
Item Description
Channel
Main SSID
Security Key
Enable Guest
Wireless
Means the channel of frequency of the wireless LAN. The
default channel is 36. You may switch channel if the selected
channel is under serious interference.
Set a name for VigorAP 920RP to be identified.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
Check the box to enable the guest wireless setting.
SSID – Set a name for VigorAP 920RP which can be identified
and connected by wireless guest.
Security – Set 8~63 ASCII characters or 8~63 ASCII characters
which can be used for logging into VigorAP 920RP by wireless
guest.
Enable Bandwidth Limit –Check the box to define the
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maximum speed of the data uploading/downloading which will
be used for the guest connecting to Vigor device with the same
SSID.
Upload Limit –Scroll the radio button to choose the
value you want.
Download Limit –Scroll the radio button to choose
the value you want.
Enable Station Control – Check the box to set the duration for
the guest connecting /reconnecting to Vigor device.
Connection Time –Scroll the radio button to choose
the value you want.
Reconnection Time –Scroll the radio button to
choose the value you want.
After finishing this web page configuration, please click Next to continue.
SSeettttiinnggss ffoorr UUnniivveerrssaall RReeppeeaatteerr
After finished the configuration for wireless LAN (2.4GHz) and click Next, you will need to
configure the following page if you choose Universal Repeater as the operation mode for
wireless LAN (5GHz).
Available settings are explained as follows:
Item Description
AP Discovery
VigorAP 920R Series User’s Guide
Click this button to open the AP Discovery dialog. VigorAP
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920RP can scan all regulatory channels and find working APs in
the neighborhood.
SSID / MAC Address
(Optional)
Channel
Security Mode
Encryption Type for
Open/Shared
SSID means the identification of the wireless LAN. After
choosing one of the AP from AP Discovery window and
clicking OK, the settings (SSID and MAC Address) related to
the selected AP will be displayed on these fields automatically.
Later, VigorAP 920RP will be allowed to access Internet
through the selected AP, by using SSID displayed here.
Means the channel of frequency of the wireless LAN. The
default channel is 36. You may switch channel if the selected
channel is under serious interference.
There are several modes provided for you to choose. Each mode
will bring up different parameters (e.g., WEP keys, Pass Phrase)
for you to configure.
This option is available when Open/Shared is selected as
Security Mode.
Choose None to disable the WEP Encryption. Data sent to the
AP will not be encrypted. To enable WEP encryption for data
transmission, please choose WEP.
Encryption Type for
WPA/PS K and
WPA2/PSK
Security Key
WEP Keys - Four keys can be entered here, but only one key
can be selected at a time. The format of WEP Key is restricted to
5 ASCII characters or 10 hexadecimal values in 64-bit
encryption level, or restricted to 13 ASCII characters or 26
hexadecimal values in 128-bit encryption level. The allowed
content is the ASCII characters from 33(!) to 126(~) except '#'
and ','.
This option is available when WPA/PSK or WPA2/PSK is
selected as Security Mode.
Select TKIP or AES as the algorithm for WPA.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as "0x321253abcde...").
Such feature is available for WPA/PSK or WPA2/PSK mode.
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Use the same SSID
and Security Key as
Above
Enable Guest
Wireless
In general, under the network environment, same SSID and
security key can be used for the host (wireless client) and the
repeater (VigorAP 920RP) in Universal Repeater mode. Check it
to use the same SSID and security key configured as above.
SSID - SSID can be any text numbers or various special
characters. For VigorAP 920RP is set as “Repeater”, the purpose
of the device is to extend the Wi-Fi service. Therefore, the
characters set here will be regarded as “main SSID”. Other
wireless client can receive the wireless signal from
VigorAP920RP by using the SSID configured here.
Security - Set 8~63 ASCII characters or 64 Hexadecimal digits
which can be used for logging into VigorAP 920RP by other
wireless client.
Check the box to enable the guest wireless setting.
SSID – Set a name for VigorAP 920RP. Wireless guest is
allowed to access into Internet via VigorAP 920RP with the
SSID configured here.
Security Key – Set 8~63 ASCII characters or 64 Hexadecimal
digits which can be used for logging into VigorAP 920RP by
wireless guest.
Enable Bandwidth Limit – Check the box to define the
maximum speed of the data uploading/downloading which will
be used for the guest connecting to Vigor device with the same
SSID.
Upload Limit –Scroll the radio button to choose the
value you want.
Download Limit –Scroll the radio button to choose
the value you want.
Enable Station Control – Check the box to set the duration for
the guest connecting /reconnecting to Vigor device.
Connection Time –Scroll the radio button to choose
the value you want.
Reconnection Time –Scroll the radio button to
choose the value you want.
After finishing this web page configuration, please click Next to continue.
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When you see this page, it means the wireless setting wizard is almost finished. Just click
Finish to save the settings and complete the setting procedure.
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22..88 OOnnlliinnee SSttaattuuss
The online status shows the LAN status, Station Link Status for such device.
Detailed explanation is shown below:
Item Description
IP Address
TX Packets
RX Packets
Displays the IP address of the LAN interface.
Displays the total transmitted packets at the LAN interface.
Displays the total number of received packets at the LAN
interface.
TX Bytes
RX Bytes
Displays the total transmitted size at the LAN interface.
Displays the total number of received size at the LAN interface.
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Addvvaanncceedd
A
This chapter will guide users to execute advanced (full) configuration. As for other examples
of application, please refer to chapter 5.
1. Open a web browser on your PC and type http://192.168.1.2. The window will ask for
typing username and password.
2. Please type “admin/admin” on Username/Password for administration operation.
Now, the Main Screen will appear. Be aware that “Admin mode” will be displayed on the
bottom left side.
Coonnffiigguurraattiioonn
C
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33..11 OOppeerraattiioonn MMooddee
This page provides several available modes for you to choose for different conditions. Click
any one of them and click OK. The system will configure the required settings
automatically.
Available settings are explained as follows:
Item Description
Wireless LAN(2.4GHz)
AP
AP Bridge-Point to
Point
AP Bridge-Point to
Multi-Point
AP Bridge-WDS
This mode allows wireless clients to connect to access point and
exchange data with the devices connected to the wired network.
This mode can establish wireless connection with another
VigorAP 920RP using the same mode, and link the wired
network which these two VigorAP 920RPs connected together.
Only one access point can be connected in this mode.
This mode can establish wireless connection with other VigorAP
920RPs using the same mode, and link the wired network which
these VigorAP 920RPs connected together. Up to 4 access
points can be connected in this mode.
This mode is similar to AP Bridge to Multi-Point, but access
point is not working in bridge-dedicated mode, and will be able
to accept wireless clients while the access point is working as a
wireless bridge.
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Universal Repeater
Wireless LAN(5GHz)
AP
Universal Repeater
Note: The Wireless LAN settings will be changed according to the Operation Mode
selected here. For the detailed information, please refer to the section of Wireless LAN.
This product can act as a wireless range extender that will help
you to extend the networking wirelessly. The access point can
act as Station and AP at the same time. It can use Station
function to connect to a Root AP and use AP function to service
all wireless clients within its coverage.
This mode allows wireless clients to connect to access point and
exchange data with the devices connected to the wired network.
This product can act as a wireless range extender that will help
you to extend the networking wirelessly. The access point can
act as Station and AP at the same time. It can use Station
function to connect to a Root AP and use AP function to service
all wireless clients within its coverage.
Local Area Network (LAN) is a group of subnets regulated and ruled by modem.
33..22..11 GGeenneerraall SSeettuupp
Click LAN to open the LAN settings page and choose General Setup.
Note: Such page will be changed according to the Operation Mode selected. The
following screen is obtained by choosing AP as the operation mode.
Available settings are explained as follows:
Item Description
LAN IP Network
Enable DHCP Client – When it is enabled, VigorAP 920RP
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Configuration
DHCP Server
Configuration
will be treated as a client and can be managed / controlled by AP
Management server offered by Vigor router (e.g., Vigor2860).
IP Addr ess – Type in private IP address for connecting to a local
private network (Default: 192.168.1.2).
Subnet Mask – Type in an address code that determines the size
of the network. (Default: 255.255.255.0/ 24)
Enable Management VLAN – VigorAP 920RP supports
tag-based VLAN for wireless clients accessing Vigor device.
Only the clients with the specified VLAN ID can access into
VigorAP 920RP.
VLAN ID – Type the number as VLAN ID tagged on the
transmitted packet. “0” means no VALN tag.
DHCP stands for Dynamic Host Configuration Protocol. DHCP
server can automatically dispatch related IP settings to any local
user configured as a DHCP client.
Enable Server - Enable Server lets the modem assign IP address
to every host in the LAN.
Start IP Address - Enter a value of the IP address pool for
the DHCP server to start with when issuing IP addresses. If
the 1st IP address of your modem is 192.168.1.2, the
starting IP address must be 192.168.1.3 or greater, but
smaller than 192.168.1.254.
End IP Address - Enter a value of the IP address pool for
the DHCP server to end with when issuing IP addresses.
Subnet Mask - Type in an address code that determines
the size of the network. (Default: 255.255.255.0/ 24)
Default Gateway - Enter a value of the gateway IP address
for the DHCP server.
Lease Time - It allows you to set the leased time for the
specified PC.
Primary DNS Server - You must specify a DNS server IP
address here because your ISP should provide you with
usually more than one DNS Server. If your ISP does not
provide it, the modem will automatically apply default
DNS Server IP address: 194.109.6.66 to this field.
Secondary DNS Server - You can specify secondary DNS
server IP address here because your ISP often provides you
more than one DNS Server. If your ISP does not provide it,
the modem will automatically apply default secondary
DNS Server IP address: 194.98.0.1 to this field.
Relay Agent - Specify which subnet that DHCP server is located
the relay agent should redirect the DHCP request to.
VigorAP 920R Series User’s Guide
DHCP Server IP Address for Relay Agent - It is available
when Enable Relay Agent is selected. Set the IP address of
the DHCP server you are going to use so the Relay Agent
can help to forward the DHCP request to the DHCP server.
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Primary DNS Server - You must specify a DNS server IP
address here because your ISP should provide you with
usually more than one DNS Server. If your ISP does not
provide it, the modem will automatically apply default
DNS Server IP address: 194.109.6.66 to this field.
Secondary DNS Server - You can specify secondary DNS
server IP address here because your ISP often provides you
more than one DNS Server. If your ISP does not provide it,
the modem will automatically apply default secondary
DNS Server IP address: 194.98.0.1 to this field.
Disable Server - Disable Server lets you manually or use other
DHCP server to assign IP address to every host in the LAN.
Primary DNS Server - You must specify a DNS server IP
address here because your ISP should provide you with
usually more than one DNS Server. If your ISP does not
provide it, the modem will automatically apply default
DNS Server IP address: 194.109.6.66 to this field.
Secondary DNS Server - You can specify secondary DNS
server IP address here because your ISP often provides you
more than one DNS Server. If your ISP does not provide it,
the modem will automatically apply default secondary
DNS Server IP address: 194.98.0.1 to this field.
Trust DHCP Server IP for WLAN –There is no right for
such VigorAP to assign IP address for wireless LAN user.
However, you can specify another valid DHCP server on
other VigorAP to make the wireless LAN client obtaining
the IP address from the designated DHCP server.
Specify a DHCP server in such field. All the IP addresses
of the devices on LAN of VigorAP will be assigned via
such specified server. It is used to avoid IP assignment
interference due to multiple DHCP servers in one LAN.
After finishing this web page configuration, please click OK to save the settings.
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33..22..22 PPoorrtt CCoonnttrrooll
To avoid wrong connection due to the insertion of unsuitable Ethernet cable, the function of
physical LAN ports can be disabled via web configuration.
Available settings are explained as follows:
Item Description
Enable Port Control
Disable Port
After finishing this web page configuration, please click OK to save the settings.
Check it to enable the port control. If it is enabled, you are
allowed to disable the function of physical LAN port by
checking the corresponding check box.
Choose and check the LAN port.
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33..33 CCeennttrraall AAPP MMaannaaggeemmeenntt
Such menu allows you to configure VigorAP device to be managed by Vigor router.
33..33..11 GGeenneerraall SSeettuupp
Available settings are explained as follows:
Item Description
Enable AP
Management
Enable Auto
Provision
Check the box to enable the function of AP Management
(APM).
VigorAP 920RP can be controlled under Central AP
Management in Vigor router. When both Vigor router and
VigorAP 920RP have such feature enabled, once VigorAP
920RP is registered to Vigor router, the WLAN profile
pre-configured on Vigor router will be applied to VigorAP
920RP immediately. Thus, it is not necessary to configure
VigorAP 920RP separately.
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33..33..22 AAPPMM LLoogg
This page will display log information related to wireless stations connected to VigorAP
920RP and central AP management.
Such information also will be delivered to Vigor router (e.g., Vigor2860 or Vigor2925 series)
and be shown on Central AP Management>>Event Log of Vigor router.
33..33..33 FFuunnccttiioonn SSuuppppoorrtt LLiisstt
Click the Client tab to list the AP management functions that the Access Points support
under different firmware versions.
Note: DrayTek central wireless management (AP Management) lets control, efficiency,
monitoring and security of your company-wide wireless access easier to be managed.
Inside the web user interface, we call “central wireless management” as Central AP
Management which supports mobility, client monitoring/reporting and load-balancing to
multiple APs. For central wireless management, you will need a Vigor2860 or Vigor2925
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series router; there is no per-node licensing or subscription required. With the unified user
interface of Vigor2860 Combo WAN series and Vigor2925 Triple WAN series, the
multiple deployment of VigorAP 920RP can be clear at the first sight. For multiple
wireless clients, to apply the AP Load Balancing to the multiple APs will manage wireless
traffic with smooth flow and enhanced efficiency.
33..33..44 OOvveerrllooaadd MMaannaaggeemmeenntt
Load Balance can help to distribute the traffic for all of the access points (e.g., VigorAP
920RP) registered to Vigor router. Thus, the bandwidth will not be occupied by certain
access points.
However, traffic overload might be occurred if too many wireless stations connected to
VigorAP 920RP for data incoming and outgoing. Therefore, “Force Overload
Disassociation” is required to terminate the network connection of the client’s station to
release network traffic. When the function of “Force Overload Disassociation” in web user
interface of Vigor router (e.g., Vigor2860 or Vigor2925 series) is enabled, wireless clients
specified in black list of such web page will be disassociated to solve the problem of traffic
overload.
The following web page is used to configure white list and black list for wireless stations.
Available settings are explained as follows:
Item Description
White List/Black List
Display the information (such as index number, MAC address
and comment) for all of the members in White List/Black List.
Wireless stations listed in Black List will be forcefully
disconnected first when traffic overload occurs and “Force
Overload Disassociation” is enabled.
Client’s MAC
Specify the MAC Address of the remote/local client.
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Address
Apply to
Add
Delete
Edit
Cancel
33..33..55 SSttaattuuss ooff SSeettttiinnggss
Load Balance can help to distribute the traffic for all of the access points (e.g., VigorAP
920RPs) registered to Vigor 2860 or Vigor2925 series. This web page displays the settings
related to Load Balance for VigorAP 920RP. In which, By Station Number, By Traffic and
Force Overload Disassociation indicate settings configured in Vigor 2860 or Vigor2925
series.
White List – MAC address listed inside Client’s MAC Address
will be categorized as one of members in White List.
Black List - MAC address listed inside Client’s MAC Address
will be categorized as one of members in Black List.
Add a new MAC address into the White List/Black List.
Delete the selected MAC address in the White List/Black List.
Edit the selected MAC address in the White List/Black List.
Give up the configuration.
“X” means the function is not enabled or VigorAP 920RP has not registered to any Vigor
router yet.
Below shows a setting example for Load Balance settings configured in Vigor 2860 or
Vigor2925 series.
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VigorAP 920RP is a highly integrated wireless local area network (WLAN) for 5 GHz
802.11ac or 2.4/5 GHz 802.11n WLAN applications. It supports channel operations of 20/40
MHz at 2.4 GHz and 20/40/80 MHz at 5 GHz. VigorAP 920RP can support data rates up to
867 MBps in 802.11ac 80 MHz channels.
Note:
* The actual data throughput will vary according to the network conditions and
environmental factors, including volume of network traffic, network overhead and
building materials.
In an Infrastructure Mode of wireless network, VigorAP 920RP plays a role as an Access
Point (AP) connecting to lots of wireless clients or Stations (STA). All the STAs will share
the same Internet connection via VigorAP 920RP. The General Setup will set up the
information of this wireless network, including its SSID as identification, located channel
etc.
SSeeccuurriittyy OOvveerrvviieeww
WEP (Wired Equivalent Privacy) is a legacy method to encrypt each frame transmitted via
radio using either a 64-bit or 128-bit key. Usually access point will preset a set of four keys
and it will communicate with each station using only one out of the four keys.
WPA (Wi-Fi Protected Access), the most dominating security mechanism in industry, is
separated into two categories: WPA-personal or called WPA Pre-Share Key (WPA/PSK),
and WPA-Enterprise or called WPA/802.1x.
In WPA-Personal, a pre-defined key is used for encryption during data transmission. WPA
applies Temporal Key Integrity Protocol (TKIP) for data encryption while WPA2 applies
AES. The WPA-Enterprise combines not only encryption but also authentication.
Since WEP has been proved vulnerable, you may consider using WPA for the most secure
connection. You should select the appropriate security mechanism according to your needs.
No matter which security suite you select, they all will enhance the over-the-air data
protection and /or privacy on your wireless network. The VigorAP 920RP is very flexible
and can support multiple secure connections with both WEP and WPA at the same time.
WWPPSS IInnttrroodduuccttiioonn
WPS (Wi-Fi Protected Setup) provides easy procedure to make network connection
between wireless station and wireless access point (VigorAP 920RP) with the encryption of
WPA and WPA2.
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It is the simplest way to build connection between wireless network clients and VigorAP
920RP. Users do not need to select any encryption mode and type any long encryption
passphrase to setup a wireless client every time. He/she only needs to press a button on
wireless client, and WPS will connect for client and VigorAP 920RP automatically.
Note: Such function is available for the wireless station with WPS supported.
There are two methods to do network connection through WPS between AP and Stations:
pressing the Start PBC button or using PIN Code.
On the side of VigorAP 920RP series which served as an AP, press WPS button once on the
front panel of VigorAP 920RP or click Start PBC on web configuration interface. On the
side of a station with network card installed, press Start PBC button of network card.
If you want to use PIN code, you have to know the PIN code specified in wireless client.
Then provide the PIN code of the wireless client you wish to connect to the VigorAP 920RP.
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When you choose AP as the operation mode, the Wireless LAN menu items will include
General Setup, Security, Access Control, WPS, Advanced Setting, AP Discovery, WMM
Configuration, Bandwidth Management, Airtime Fairness, Station Control, Roaming, Band
Steering and Station List.
Note: The Wireless LAN
Operation Mode selected in section 3.1.
(2.4GHz) settings will be changed according to the
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By clicking the General Setup, a new web page will appear so that you could configure the SSID and the wireless channel. Please refer to the following figure for more information.
Available settings are explained as follows:
Item Description
Enable Wireless LAN
Enable Limit Client
Check the box to enable wireless function.
Check the box to set the maximum number of wireless stations
which try to connect Internet through Vigor device. The
number you can set is from 3 to 128.
Enable Limit Client
per SSID
Define the maximum number of wireless stations per SSID
which try to connect to Internet through Vigor device. The
number you can set is from 3 to 128.
Mode
At present, VigorAP 920RP can connect to 11b only, 11n only,
Mixed (11b+11g) and Mixed (11b+11g+11n) stations
simultaneously. Simply choose Mixed (11b+11g+11n) mode.
2.4GHz
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5GHz
Channel
Extension Channel
Hide SSID
SSID
Isolate Member
VLAN ID
Means the channel of frequency of the wireless LAN. You may
switch channel if the selected channel is under serious
interference. If you have no idea of choosing the frequency,
please select AutoSelect to let system determine for you.
This option is available for Wireless LAN (2.4GHz).
With 802.11n, there is one option to double the bandwidth per
channel. The available extension channel options will be varied
according to the Channel selected above. Configure the
extension channel you want.
Check it to prevent from wireless sniffing and make it harder
for unauthorized clients or STAs to join your wireless LAN.
Depending on the wireless utility, the user may only see the
information except SSID or just cannot see any thing about
VigorAP 920RP while site surveying. The system allows you
to set four sets of SSID for different usage.
Set a name for VigorAP 920RP to be identified. Default setting
is DrayTek.
Check this box to make the wireless clients (stations) with the
same SSID not access for each other.
Type the value for such SSID. Packets transferred from such
SSID to LAN will be tagged with the number.
If your network uses VLANs, you can assign the SSID to a
VLAN on your network. Client devices that associate using the
SSID are grouped into this VLAN. The VLAN ID range is
from 3 to 4095. The VLAN ID is 0 by default, it means
disabling the VLAN function for the SSID.
After finishing this web page configuration, please click OK to save the settings.
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33..55..22 SSeeccuurriittyy
This page allows you to set security with different modes for SSID 1, 2, 3 and 4 respectively.
After configuring the correct settings, please click OK to save and invoke it.
By clicking the Security, a new web page will appear so that you could configure the settings.
Available settings are explained as follows:
Item Description
Mode
There are several modes provided for you to choose.
Disable - The encryption mechanism is turned off.
WEP - Accepts only WEP clients and the encryption key
should be entered in WEP Key.
WPA/PSK or WPA2/PSK or Mixed (WPA+WPA2)/PSK -
Accepts only WPA clients and the encryption key should be
entered in PSK. The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WEP/802.1x - The built-in RADIUS client feature enables
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VigorAP 920RP to assist the remote dial-in user or a wireless
station and the RADIUS server in performing mutual
authentication. It enables centralized remote access
authentication for network management.
The WPA encrypts each frame transmitted from the radio
using the key, which either PSK (Pre-Shared Key) entered
manually in this field below or automatically negotiated via
802.1x authentication. Select WPA, WPA2 or Auto as WPA
mode.
WPA/802.1x - The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WPA2/802.1x - The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WP A Algorithms
Pass Phrase
Key Renewal Interval
EAPOL Key Retry
Select TKIP, AES or TKIP/AES as the algorithm for WPA.
Such feature is available for WPA2/802.1x, WPA/802.1x,
WPA/PSK or WPA2/PSK or Mixed (WPA+WPA2)/PSK
mode.
Type 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as
"0x321253abcde..."). Such feature is available for WPA/PSK
or WPA2/PSK or Mixed (WPA+WPA2)/PSK mode.
WPA uses shared key for authentication to the network.
However, normal network operations use a different
encryption key that is randomly generated. This randomly
generated key that is periodically replaced. Enter the renewal
security time (seconds) in the column. Smaller interval leads to
greater security but lower performance. Default is 3600
seconds. Set 0 to disable re-key. Such feature is available for
WPA2/802.1,WPA/802.1x, WPA/PSK or WPA2/PSK or
Mixed (WPA+WPA2)/PSK mode.
EAPOL means Extensible Authentication Protocol over LAN.
Enable - The default setting is "Enable". It can make sure that
the key will be installed and used once in order to prevent key
reinstallation attack.
Key 1 – Key 4
WEP
VigorAP 920R Series User’s Guide
Four keys can be entered here, but only one key can be
selected at a time. The format of WEP Key is restricted to 5
ASCII characters or 10 hexadecimal values in 64-bit
encryption level, or restricted to 13 ASCII characters or 26
hexadecimal values in 128-bit encryption level. The allowed
content is the ASCII characters from 33(!) to 126(~) except '#'
and ','. Such feature is available for WEP mode.
Disable - Disable the WEP Encryption. Data sent to the AP
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will not be encrypted.
Enable - Enable the WEP Encryption.
Click the link of RADIUS Server to access into the following page for more settings.
Available settings are explained as follows:
Item Description
Use internal RADIUS
Server
There is a RADIUS server built in VigorAP 920RP which is
used to authenticate the wireless client connecting to the access
point. Check this box to use the internal RADIUS server for
wireless security.
Besides, if you want to use the external RADIUS server for
authentication, do not check this box.
Please refer to the section,3.11 RADIUS Server to configure
settings for internal server of VigorAP 920RP.
IP Addr ess
Port
Enter the IP address of external RADIUS server.
The UDP port number that the external RADIUS server is
using. The default value is 1812, based on RFC 2138.
Shared Secret
The external RADIUS server and client share a secret that is
used to authenticate the messages sent between them. Both
sides must be configured to use the same shared secret.
Session Timeout
Set the maximum time of service provided before
re-authentication. Set to zero to perform another authentication
immediately after the first authentication has successfully
completed. (The unit is second.)
After finishing this web page configuration, please click OK to save the settings.
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33..55..33 AAcccceessss CCoonnttrrooll
For additional security of wireless access, the Access Control facility allows you to restrict the network access right by controlling the wireless LAN MAC address of client. Only the valid MAC address that has been configured can access the wireless LAN interface. By clicking the Access Control, a new web page will appear, as depicted below, so that you could edit the clients' MAC addresses to control their access rights (deny or allow).
Available settings are explained as follows:
Item Description
Policy
Select to enable any one of the following policy or disable the
policy. Choose Activate MAC address filter to type in the
MAC addresses for other clients in the network manually.
Choose Blocked MAC address filter, so that all of the devices
with the MAC addresses listed on the MAC Address Filter
table will be blocked and cannot access into VigorAP 920RP.
MAC Address Filter
Client’s MAC
Display all MAC addresses that are edited before.
Manually enter the MAC address of wireless client.
Address
Add
Delete
Edit
Add a new MAC address into the list.
Delete the selected MAC address in the list.
Edit the selected MAC address in the list.
Cancel
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Give up the access control set up.
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Backup
Restore
After finishing this web page configuration, please click OK to save the settings.
33..55..44 WWPPSS
Open Wireless LAN>>WPS to configure the corresponding settings.
Click it to store the settings (MAC addresses on MAC Address
Filter table) on this page as a file.
Click it to restore the settings (MAC addresses on MAC
Address Filter table) from an existed file.
Available settings are explained as follows:
Item Description
Enable WPS
WPS Configured
Check this box to enable WPS setting.
Display related system information for WPS. If the wireless
security (encryption) function of VigorAP 920RP is properly
configured, you can see ‘Yes’ message here.
WPS SSID
WPS Auth Mode
Display current selected SSID.
Display current authentication mode of the VigorAP 920RP.
Only WPA2/PSK and WPA/PSK support WPS.
WPS Encrypt Type
Display encryption mode (None, WEP, TKIP, AES, etc.) of
VigorAP 920RP.
Configure via Push
Button
Click Start PBC to invoke Push-Button style WPS setup
procedure. VigorAP 920RP will wait for WPS requests from
wireless clients about two minutes. Both ACT and 2.4G
WLAN LEDs on VigorAP 920RP will blink quickly when
WPS is in progress. It will return to normal condition after two
minutes. (You need to setup WPS within two minutes)
Configure via Client
PinCode
Type the PIN code specified in wireless client you wish to
connect, and click Start PIN button. Both ACT and 2.4G
WLAN LEDs on VigorAP 920RP will blink quickly when
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WPS is in progress. It will return to normal condition after two
minutes. (You need to setup WPS within two minutes).
33..55..55 AAddvvaanncceedd SSeettttiinngg
This page is to determine which algorithm will be selected for wireless transmission rate.
Available settings are explained as follows:
Item Description
Channel Width
20 MHz- the device will use 20MHz for data transmission and
receiving between the AP and the stations.
Auto 20/40 MHz – VigorAP will scan for nearby wireless AP
to determine which channel width (20MHz or 40MHz) shall be
used to meet the air situation. Usually, 40MHz would have
better performance under the clean wireless environment (e.g.,
less wireless traffic / contention). When the air condition is not
satisfied (e.g., dirty air), 20MHz will be used by VigorAP
automatically to ensure smooth network transmission.
40 MHz- the device will use 40MHz for data transmission and
receiving between the AP and the stations.
Antenna
VigorAP can be attached with two antennas to have good data
transmission via wireless connection. However, if you have
only one antenna attached, please choose 1T1R.
Fragment Length
Set the Fragment threshold of wireless radio. Do not modify
default value if you don’t know what it is, default value is 2346.
RTS Threshold
Minimize the collision (unit is bytes) between hidden stations
to improve wireless performance.
Set the RTS threshold of wireless radio. Do not m odif y default
value if you don’t know what it is, default value is 2347.
Country Code
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VigorAP broadcasts country codes by following the 802.11d
standard. However, some wireless stations will detect / scan
the country code to prevent conflict occurred. If conflict is
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detected, wireless station will be warned and is unable to make
network connection. Therefore, changing the country code to
ensure successful network connection will be necessary for
some clients.
Auto Channel
Filtered Out List
Isolate 2.4GHz and
5GHz bands
Isolate members with
IP
MAC Clone
The selected wireless channels will be discarded if AutoSelect
is selected as Channel selection mode in Wireless
LAN>>General Setup.
The default setting is “Enable”. It means that the wireless
client using 2.4GHz band is unable to connect to the wireless
client with 5GHz band, and vice versa.
For WLAN 2.4GHz and 5GHz set with the same SSID name:
No matter such function is enabled or disabled, clients
using WLAN 2.4GHz and 5GHz can communicate for
each other if Isolate Member (in Wireless
LAN>>General Setup) is NOT enabled for such SSID.
Yet, if the function of Isolate Member (in Wireless
LAN>>General Setup) is enabled for such SSID, clients
using WLAN 2.4GHz and 5GHz will be unable to
communicate with each other.
The default setting is “Disable”.
If it is enabled, VigorAP will isolate different wireless clients
according to their IP address(es).
Click Enable and manually enter the MAC address of the
device with SSID 1. The MAC address of other SSIDs will
change based on this MAC address.
After finishing this web page configuration, please click OK to save the settings.
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33..55..66 AAPP DDiissccoovveerryy
VigorAP 920RP can scan all regulatory channels and find working APs in the neighborhood.
Based on the scanning result, users will know which channel is clean for usage. Also, it can
be used to facilitate finding an AP for a WDS link. Notice that during the scanning process
(about 5 seconds), no client is allowed to connect to Vigor.
This page is used to scan the existence of the APs on the wireless LAN. Please click Scan to
discover all the connected APs.
Each item is explained as follows:
Item Description
SSID
BSSID
Display the SSID of the AP scanned by VigorAP 920RP.
Display the MAC address of the AP scanned by VigorAP
920RP.
RSSI
Display the signal strength of the access point. RSSI is the
abbreviation of Received Signal Strength Indication.
Channel
Display the wireless channel used for the AP that is scanned by
VigorAP 920RP.
Encryption
Authentication
Scan
Display the encryption mode for the scanned AP.
Display the authentication type that the scanned AP applied.
It is used to discover all the connected AP. The results will be
shown on the box above this button
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33..55..77 WWMMMM CCoonnffiigguurraattiioonn
WMM is an abbreviation of Wi-Fi Multimedia. It defines the priority levels for four access
categories derived from 802.1d (prioritization tabs). The categories are designed with
specific types of traffic, voice, video, best effort and low priority data. There are four
accessing categories - AC_BE , AC_BK, AC_VI and AC_VO for WMM.
Available settings are explained as follows:
Item Description
WMM Capable
To apply WMM parameters for wireless data transmission,
please click the Enable radio button.
APSD Capable
APSD (automatic power-save delivery) is an enhancement over
the power-save mechanisms supported by Wi-Fi networks. It
allows devices to take more time in sleeping state and consume
less power to improve the performance by minimizing
transmission latency.
The default setting is Disable.
Aifsn
It controls how long the client waits for each data transmission.
Please specify the value ranging from 1 to 15. Such parameter
will influence the time delay for WMM accessing categories.
For the service of voice or video image, please set small value
for AC_VI and AC_VO categories For the service of e-mail or
web browsing, please set large value for AC_BE and AC_BK
categories.
CWMin/CWMax
CWMin means contention Window-Min and CWMax means
contention Window-Max. Please specify the value ranging from
1 to 15. Be aware that CWMax value must be greater than
CWMin or equals to CWMin value. Both values will influence
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the time delay for WMM accessing categories. The difference
between AC_VI and AC_VO categories must be smaller;
however, the difference between AC_BE and AC_BK categories
must be greater.
Txop
It means transmission opportunity. For WMM categories of
AC_VI and AC_VO that need higher priorities in data
transmission, please set greater value for them to get highest
transmission opportunity. Specify the value ranging from 0 to
65535.
AckPolicy
“Uncheck” (default value) the box means the AP will answer the
response request while transmitting WMM packets through
wireless connection. It can assure that the peer must receive the
WMM packets.
“Check” the box means the AP will not answer any response
request for the transmitting packets. It will have better
performance with lower reliability.
ACM
It is an abbreviation of Admission control Mandatory. It can
restrict stations from using specific category class if it is
checked.
Note: VigorAP 920RP provides standard WMM configuration
in the web page. If you want to modify the parameters, please
refer to the Wi-Fi WMM standard specification.
After finishing this web page configuration, please click OK to save the settings.
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33..55..88 BBaannddwwiiddtthh MMaannaaggeemmeenntt
The downstream or upstream from FTP, HTTP or some P2P applications will occupy large
of bandwidth and affect the applications for other programs. Please use Bandwidth
Management to make the bandwidth usage more efficient.
Available settings are explained as follows:
Item Description
SSID
Enable
Upload Limit
Display the specific SSID name.
Check this box to enable the bandwidth management for clients.
Define the maximum speed of the data uploading which will be
used for the wireless stations connecting to Vigor device with
the same SSID.
Use the drop down list to choose the rate. If you choose User
defined, you have to specify the rate manually.
Download Limit
Define the maximum speed of the data downloading which will
be used for the wireless station connecting to Vigor device with
the same SSID.
Use the drop down list to choose the rate. If you choose User
defined, you have to specify the rate manually.
Auto Adjustment
Check this box to have the bandwidth limit determined by the
system automatically.
Total Upload Limit
When Auto Adjustment is checked, the value defined here will
be treated as the total bandwidth shared by all of the wireless
stations with the same SSID for data uploading.
Total Download
Limit
When Auto Adjustment is checked, the value defined here will
be treated as the total bandwidth shared by all of the wireless
stations with the same SSID for data downloading.
After finishing this web page configuration, please click OK to save the settings.
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33..55..99 AAiirrttiimmee FFaaiirrnneessss
Airtime fairness is essential in wireless networks that must support critical enterprise
applications.
Most of the applications are either symmetric or require more downlink than uplink capacity;
telephony and email send the same amount of data in each direction, while video streaming
and web surfing involve more traffic sent from access points to clients than the other way
around. This is essential for ensuring predictable performance and quality-of-service, as well
as allowing 802.11n and legacy clients to coexist on the same network. Without airtime
fairness, offices using mixed mode networks risk having legacy clients slow down the entire
network or letting the fastest client(s) crowd out other users.
With airtime fairness, every client at a given quality-of-service level has equal access to the
network's airtime.
The wireless channel can be accessed by only one wireless station at the same time.
The principle behind the IEEE802.11 channel access mechanisms is that each station has
equal probability to access the channel. When wireless stations have similar data rate, this
principle leads to a fair result. In this case, stations get similar channel access time which is
called airtime.
However, when stations have various data rate (e.g., 11g, 11n), the result is not fair. The
slow stations (11g) work in their slow data rate and occupy too much airtime, whereas the
fast stations (11n) become much slower.
Take the following figure as an example, both Station A(11g) and Station B(11n) transmit
data packets through VigorAP 920RP. Although they have equal probability to access the
wireless channel, Station B(11n) gets only a little airtime and waits too much because Station
A(11g) spends longer time to send one packet. In other words, Station B(fast rate) is
obstructed by Station A(slow rate).
To improve this problem, Airtime Fairness is added for VigorAP 920RP. Airtime Fairness
function tries to assign similar airtime to each station (A/B) by controlling TX traffic. In the
following figure, Station B(11n) has higher probability to send data packets than Station
A(11g). By this way, Station B(fast rate) gets fair airtime and it's speed is not limited by
Station A(slow rate).
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It is similar to automatic Bandwidth Limit. The dynamic bandwidth limit of each station
depends on instant active station number and airtime assignment. Please note that Airtime
Fairness of 2.4GHz and 5GHz are independent. But stations of different SSIDs function
together, because they all use the same wireless channel. IN SPECIFIC ENVIRONMENTS,
this function can reduce the bad influence of slow wireless devices and improve the overall
wireless performance.
Suitable environment:
(1) Many wireless stations.
(2) All stations mainly use download traffic.
(3) The performance bottleneck is wireless connection.
Available settings are explained as follows:
Item Description
Enable Airtime
Fairness
Try to assign similar airtime to each wireless station by
controlling TX traffic.
Airtime Fairness – Click the link to display the following
screen of airtime fairness note.
Triggering Client Number –Airtime Fairness function is
applied only when active station number achieves this number.
After finishing this web page configuration, please click OK to save the settings.
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Note: Airtime Fairness function and Bandwidth Limit function should be mutually
exclusive. So their webs have extra actions to ensure these two functions are not enabled
simultaneously.
33..55..1100 SSttaattiioonn CCoonnttrrooll
Station Control is used to specify the duration for the wireless client to connect and
reconnect VigorAP. If such function is not enabled, the wireless client can connect VigorAP
until it shuts down.
Such feature is especially useful for free Wi-Fi service. For example, a coffee shop offers
free Wi-Fi service for its guests for one hour every day. Then, the connection time can be set
as “1 hour” and reconnection time can be set as “1 day”. Thus, the guest can finish his job
within one hour and will not occupy the wireless network for a long time.
Note: Up to 300 Wireless Station records are supported by VigorAP.
Available settings are explained as follows:
Item Description
SSID
Display the SSID that the wireless station will use it to
connect with Vigor router.
Enable
Connection Time /
Reconnection Time
Check the box to enable the station control function.
Use the drop down list to choose the duration for the
wireless client connecting /reconnecting to Vigor device.
Or, type the duration manually when you choose User
defined.
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Display All Station
Control List
After finishing all the settings here, please click OK to save the configuration.
33..55..1111 RRooaammiinngg
The network signal for a single wireless access point might be limited by its coverage range.
Therefore, if you want to expand the wireless network in a large exhibition with a quick
method, you can install multiple access points with enabling the Roaming feature for each
AP to reach the purpose of expanding wireless signals seamlessly.
These access points connecting for each other shall be verified by pre-authentication. This
page allows you to enable the roaming feature and the pre-authentication.
All the wireless stations connecting to Vigor router by using
such SSID will be listed on Station Control List.
Available settings are explained as follows:
Item Description
AP-assisted Client
Roaming Parameters
When the link rate of wireless station is too low or the signal
received by the wireless station is too worse, VigorAP 920RP
will automatically detect (based on the link rate and RSSI
requirement) and cut off the network connection for that wireless
station to assist it to connect another Wireless AP to get better
signal.
Minimum Basic Rate – Check the box to use the drop down list
to specify a basic rate (Mbps). When the link rate of the wireless
station is below such value, VigorAP 920RP will terminate the
network connection for that wireless station.
Disable RSSI Requirement - If it is selected, VigorAP will not
terminate the network connection based on RSSI.
Strictly Minimum RSSI - VigorAP uses RSSI (received signal
strength indicator) to decide to terminate the network connection
of wireless station. When the signal strength is below the value
(dBm) set here, VigorAP 920RP will terminate the network
connection for that wireless station.
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Minimum RSSI - When the signal strength of the wireless
station is below the value (dBm) set here and adjacent AP (must
be DrayTek AP and support such feature too) with higher signal
strength value (defined in the field of With Adjacent AP RSSI
over) is detected by VigorAP 920RP, VigorAP 920RP will
terminate the network connection for that wireless station. Later,
the wireless station can connect to the adjacent AP (with better
RSSI).
With Adjacent AP RSSI over – Specify a value as a
threshold.
Fast Roaming
(WPA2/802.1x)
Enable – Check the box to enable fast roaming configuration.
PMK Caching - Set the expire time of WPA2 PMK (Pairwise
master key) cache. PMK Cache manages the list from the
BSSIDs in the associated SSID with which it has
pre-authenticated. Such feature is available for WPA2/802.1
mode.
Pre-Authentication - Enables a station to authenticate to
multiple APs for roaming securer and faster. With the
pre-authentication procedure defined in IEEE 802.11i
specification, the pre-four-way-handshake can reduce handoff
delay perceivable by a mobile node. It makes roaming faster and
more secure. (Only valid in WPA2)
After finishing this web page configuration, please click OK to save the settings.
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Band Steering detects if the wireless clients are capable of 5GHz operation, and steers them
to that frequency. It helps to leave 2.4GHz band available for legacy clients, and improves
users experience by reducing channel utilization.
If dual-band is detected, the AP will let the wireless client connect to less congested wireless
LAN, such as 5GHz to prevent from network congestion.
Note: To make Band Steering work successfully, SSID and security on 2.4GHz also
MUST be broadcasted on 5GHz.
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Open Wireless LAN (2.4GHz)>>Band Steering to get the following web page:
Available settings are explained as follows:
Item Description
Enable Band Steering
If it is enabled, VigorAP will detect if the wireless client is
capable of dual-band or not within the time limit.
Check Time…. – If the wireless station does not have the
capability of 5GHz network connection, the system shall
wait and check for several seconds (15 seconds, in default)
to make the 2.4GHz network connection. Specify the time
limit for VigorAP to detect the wireless client.
5GHz Minimum RSSI – The wireless station has the
capability of 5GHz network connection, yet the signal
performance might not be satisfied. Therefore, when the
signal strength is below the value set here while the
wireless station connecting to VigorAP 920RP, VigorAP
will allow the client to connect to 2.4GHz network.
Overloaded – If it is enabled, VigorAP will activate the
band steering according to the conditions set below.
2.4GHz Utilization Overload Threshold – The
default setting is 70%. It can define the network
congestion for 2.4GHz.
5GHz Utilization Overload Threshold – The default
setting is 70%. It can define the network congestion
for 5GHz.
When the utilization of 2.4GHz is higher than the specified
threshold and the utilization of 5GHz is lower than the
specified threshold, VigorAP will steer the client to connect
to 5GHz network.
After finishing this web page configuration, please click OK to save the settings.
Below shows how Band Steering works.
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HHooww ttoo UUssee BBaanndd SStteeeerriinngg??
1. Open Wireless LAN(2.4GHz)>>Band Steering.
2. Check the box of Enable Band Steering and use the default value (15) for check time
setting.
3. Click OK to save the settings.
4. Open Wireless LAN (2.4GHz)>>General Setup and Wireless LAN (5GHz)>>
General Setup. Configure SSID as ap920-BandSteering for both pages. Click OK to
save the settings.
Same value
for 2.4GHz
and 5GHz
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Same value
for 2.4GHz
and 5GHz
5. Open Wireless LAN (2.4GHz)>>Security and Wireless LAN (5GHz)>>Security.
Configure Security as 12345678 for both pages. Click OK to save the settings.
6. Now, VigorAP 920RP will let the wireless clients connect to less congested wireless
LAN, such as 5GHz to prevent from network congestion.
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33..55..1133 SSttaattiioonn LLiisstt
Station List provides the knowledge of connecting wireless clients now along with its status code. Each tab (general, advanced, control, neighbor) will display different status information (including MAC address, Vendor, SSID, Auth, Encrypt, Tx/Rx Rate, Hostname, RSSI, Link Speed, BW, PSM, WMM, PHMd, MCS, Connection Time, Reconnection Time, Approx. Distance, Visit Time, and so on).
General
Display general information (e.g., MAC Address, SSID, Auth, Encrypt, TX/RX Rate) for the
station.
Available settings are explained as follows:
Item Description
MAC Address
Hostname
SSID
Auth
Encrypt
Tx Rate/Rx Rate
Refresh
Add to Access
Control
VigorAP 920R Series User’s Guide
Display the MAC Address for the connecting client.
Display the host name of the connecting client.
Display the SSID that the wireless client connects to.
Display the authentication that the wireless client uses for
connection with such AP.
Display the encryption mode used by the wireless client.
Display the transmission /receiving rate for packets.
Click this button to refresh the status of station list.
Client’s MAC Address - For additional security of wireless
access, the Access Control facility allows you to restrict the
network access right by controlling the wireless LAN MAC
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address of client. Only the valid MAC address that has been
configured can access the wireless LAN interface.
Add
Click this button to add current typed MAC address into
Access Control.
Control
Display connection and reconnection time of the wireless stations.
Neighbor
Display more information for the neighboring wireless stations.
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33..66 WWiirreelleessss LLAANN SSeettttiinnggss ffoorr AAPP BBrriiddggee--PPooiinntt ttoo PPooiinntt//AAPP
BBrriiddggee--PPooiinntt ttoo MMuullttii--PPooiinntt MMooddee
When you choose AP Bridge-Point to Point or Point-to Multi-Point Mode as the operation
mode, the Wireless LAN menu items will include General Setup, Advanced Setting, AP
Discovery, and WDS AP Status.
AP Bridge-Point to Point allows VigorAP 920RP to connect to another VigorAP 920RP
which uses the same mode. All wired Ethernet clients of both VigorAP 920RPs will be
connected together.
Point-to Multi-Point Mode allows AP 920RP to connect up to four VigorAPs using the same
mode. All wired Ethernet clients of every VigorAP 920RP will be connected together.
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By clicking the General Setup, a new web page will appear so that you could configure security, Tx Burst and choose proper mode. Please refer to the following figure for more information.
Available settings are explained as follows:
Item Description
Enable Wireless LAN
Mode
VigorAP 920R Series User’s Guide
Check the box to enable wireless function.
At present, VigorAP 920RP can connect to 11b only, 11n
only, Mixed (11b+11g), and Mixed (11b+11g+11n) stations
simultaneously. Simply choose Mixed (11b+11g+11n) mode.
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Channel
Filtered Out List
Extension Channel
Rate
PHY Mode
Security
Peer MAC Address
Means the channel of frequency of the wireless LAN. The
default channel is 11. You may switch channel if the selected
channel is under serious interference. If you have no idea of
choosing the frequency, please select AutoSelect to let
system determine for you.
Such link will be shown if AutoSelect is selected as Channel.
Click such link to access into Wireless LAN >> Advanced
Settings page.
With 802.11n, there is one option to double the bandwidth per
channel. The available extension channel options will be
varied according to the Channel selected above.
If 11b Only is selected as Mode, such feature will be available
to set data transmission rate.
Data will be transmitted via HTMIX mode.
Each access point should be setup to the same PHY Mode for
connecting with each other.
Select TKIP or AES as the encryption algorithm. Type the key
number if required.
Type the peer MAC address for the access point that VigorAP
920RP connects to.
After finishing this web page configuration, please click OK to save the settings.
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This page is to determine which algorithm will be selected for wireless transmission rate.
Available settings are explained as follows:
Item Description
Channel Width
20 MHz - AP will use 20MHz for data transmission and
receiving between the AP and the stations.
Auto 20/40 MHz - VigorAP will scan for nearby wireless AP
to determine which channel width (20MHz or 40MHz) shall be
used to meet the air situation. Usually, 40MHz would have
better performance under the clean wireless environment (e.g.,
less wireless traffic / contention). When the air condition is not
satisfied (e.g., dirty air), 20MHz will be used by VigorAP
automatically to ensure smooth network transmission.
40 MHz - AP will use 40MHz for data transmission and
receiving between the AP and the stations.
Antenna
VigorAP can be attached with two antennas to have good data
transmission via wireless connection. However, if you have
only one antenna attached, please choose 1T1R.
Fragment Length
Set the Fragment threshold of wireless radio. Do not modify
default value if you don’t know what it is, default value is 2346.
RTS Threshold
Minimize the collision (unit is bytes) between hidden stations
to improve wireless performance.
Set the RTS threshold of wireless radio. Do not m odif y default
value if you don’t know what it is, default value is 2347.
Country Code
VigorAP 920R Series User’s Guide
VigorAP broadcasts country codes by following the 802.11d
standard. However, some wireless stations will detect / scan
the country code to prevent conflict occurred. If conflict is
detected, wireless station will be warned and is unable to make
network connection. Therefore, changing the country code to
ensure successful network connection will be necessary for
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some clients.
Auto Channel
Filtered Out List
Isolate 2.4GHz and
5GHz bands
Isolate members with
IP
MAC Clone
The wireless channels selected in this field will be discarded if
AutoSelect is selected as Channel selection mode in Wireless
LAN>>General Setup.
The default setting is “Enable”. It means that the wireless
client using 2.4GHz band is unable to connect to the wireless
client with 5GHz band, and vice versa.
For WLAN 2.4GHz and 5GHz set with the same SSID name:
No matter such function is enabled or disabled, clients
using WLAN 2.4GHz and 5GHz can communicate for
each other if Isolate Member (in Wireless
LAN>>General Setup) is NOT enabled for such SSID.
Yet, if the function of Isolate Member (in Wireless
LAN>>General Setup) is enabled for such SSID, clients
using WLAN 2.4GHz and 5GHz will be unable to
communicate with each other.
The default setting is “Disable”.
If it is enabled, VigorAP will isolate different wireless clients
according to their IP address(es).
Click Enable and manually enter the MAC address of the
device with SSID 1. The MAC address of other SSIDs will
change based on this MAC address.
After finishing this web page configuration, please click OK to save the settings.
33..66..33 AAPP DDiissccoovveerryy
VigorAP 920RP can scan all regulatory channels and find working APs in the neighborhood.
Based on the scanning result, users will know which channel is clean for usage. Also, it can
be used to facilitate finding an AP for a WDS link. Notice that during the scanning process
(about 5 seconds), no client is allowed to connect to VigorAP 920RP.
This page is used to scan the existence of the APs on the wireless LAN. Yet, only the AP
which is in the same channel of VigorAP 920RP can be found. Please click Scan to discover
all the connected APs.
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Available settings are explained as follows:
Item Description
SSID
BSSID
Display the SSID of the AP scanned by VigorAP 920RP.
Display the MAC address of the AP scanned by VigorAP
920RP.
RSSI
Display the signal strength of the access point. RSSI is the
abbreviation of Received Signal Strength Indication.
Channel
Display the wireless channel used for the AP that is scanned by
VigorAP 920RP.
Encryption
Authentication
Scan
Display the encryption mode for the scanned AP.
Display the authentication type that the scanned AP applied.
It is used to discover all the connected AP. The results will be
shown on the box above this button
AP’s MAC Address
If you want the found AP applying the WDS settings, please
type in the AP’s MAC address.
AP’s SSID
To specify an AP to be applied with WDS settings, you can
specify MAC address or SSID for the AP. Here is the place that
you can type the SSID of the AP.
Add
Type the MAC address of the AP. Click Add. Later, the MAC
address of the AP will be added and be shown on WDS settings
page.
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VigorAP 920RP can display the status such as MAC address, physical mode, power save and
bandwidth for the working AP connected with WDS. Click Refresh to get the newest
information.
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When you choose AP Bridge-WDS as the operation mode, the Wireless LAN menu items
will include General Setup, Security, Access Control, WPS, Advanced Setting, AP
Discovery, WDS AP Status, WMM Configuration, Bandwidth Management, Airtime
Fairness, Station Control, Roaming, Band Steering and Station List.
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By clicking the General Setup, a new web page will appear so that you could configure security, Tx Burst and choose proper mode. Please refer to the following figure for more information.
Available settings are explained as follows:
Item Description
Enable Wireless LAN
Enable Limit Client
Check the box to enable wireless function.
Check the box to set the maximum number of wireless stations
which try to connect Internet through VigorAP. The number
you can set is from 3 to 128.
Enable Limit Client
per SSID
Define the maximum number of wireless stations per SSID
which try to connect to Internet through Vigor device. The
number you can set is from 3 to 128.
Mode
At present, VigorAP 920RP can connect to 11b only, 11n only,
Mixed (11b+11g) and Mixed (11b+11g+11n) stations
simultaneously. Simply choose Mixed (11b+11g+11n) mode.
Channel
Means the channel of frequency of the wireless LAN. You may
switch channel if the selected channel is under serious
interference. If you have no idea of choosing the frequency,
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please select AutoSelect to let system determine for you.
Extension Channel
Rate
Enable
Hide SSID
SSID
Isolate LAN
Isolate Member
With 802.11n, there is one option to double the bandwidth per
channel. The available extension channel options will be varied
according to the Channel selected above. Configure the
extension channel you want.
If 11b Only is selected as Mode, such feature will be available
to set data transmission rate.
Check the box to enable the SSID configuration.
Check it to prevent from wireless sniffing and make it harder
for unauthorized clients or STAs to join your wireless LAN.
Depending on the wireless utility, the user may only see the
information except SSID or just cannot see any thing about
VigorAP 920RP while site surveying. The system allows you
to set four sets of SSID for different usage.
Set a name for VigorAP 920RP to be identified. Default setting
is DrayTek.
Check this box to make the wireless clients (stations) with the
same SSID not accessing for wired PC in LAN.
Check this box to make the wireless clients (stations) with the
same SSID not accessing for each other.
VLAN ID
Type the value for such SSID. Packets transferred from such
SSID to LAN will be tagged with the number.
If your network uses VLANs, you can assign the SSID to a
VLAN on your network. Client devices that associate using the
SSID are grouped into this VLAN. The VLAN ID range is
from 3 to 4095. The VLAN ID is 0 by default, it means
disabling the VLAN function for the SSID.
PHY Mode
Data will be transmitted via HTMIX mode.
Each access point should be setup to the same PHY Mode for
connecting with each other.
Security
Peer MAC Address
Select Disabled, TKIP or AES as the encryption algorithm.
Four peer MAC addresses are allowed to be entered in this
page at one time.
After finishing this web page configuration, please click OK to save the settings.
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This page allows you to set security with different modes for SSID 1, 2, 3 and 4 respectively.
After configuring the correct settings, please click OK to save and invoke it.
By clicking the Security, a new web page will appear so that you could configure the settings.
Available settings are explained as follows:
Item Description
Mode
There are several modes provided for you to choose.
Disable - The encryption mechanism is turned off.
WEP - Accepts only WEP clients and the encryption key
should be entered in WEP Key.
WPA/PSK or WPA2/PSK or Mixed (WPA+WPA2)/PSK -
Accepts only WPA clients and the encryption key should be
entered in PSK. The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WEP/802.1x - The built-in RADIUS client feature enables
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VigorAP 920RP to assist the remote dial-in user or a wireless
station and the RADIUS server in performing mutual
authentication. It enables centralized remote access
authentication for network management.
The WPA encrypts each frame transmitted from the radio
using the key, which either PSK (Pre-Shared Key) entered
manually in this field below or automatically negotiated via
802.1x authentication. Select WPA, WPA2 or Auto as WPA
mode.
WPA/802.1x - The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WPA2/802.1x - The WPA encrypts each frame transmitted
from the radio using the key, which either PSK (Pre-Shared
Key) entered manually in this field below or automatically
negotiated via 802.1x authentication.
WP A Algorithms
Pass Phrase
Key Renewal Interval
EAPOL Key Retry
Select TKIP, AES or TKIP/AES as the algorithm for WPA.
Such feature is available for WPA2/802.1x, WPA/802.1x,
WPA/PSK or WPA2/PSK or Mixed (WPA+WPA2)/PSK
mode.
Either 8~63 ASCII characters, such as 012345678..(or 64
Hexadecimal digits leading by 0x, such as
"0x321253abcde..."). Such feature is available for WPA/PSK
or WPA2/PSK or Mixed (WPA+WPA2)/PSK mode.
WPA uses shared key for authentication to the network.
However, normal network operations use a different
encryption key that is randomly generated. This randomly
generated key that is periodically replaced. Enter the renewal
security time (seconds) in the column. Smaller interval leads to
greater security but lower performance. Default is 3600
seconds. Set 0 to disable re-key. Such feature is available for
WPA2/802.1,WPA/802.1x, WPA/PSK or WPA2/PSK or
Mixed (WPA+WPA2)/PSK mode.
EAPOL means Extensible Authentication Protocol over LAN.
Enable - The default setting is "Enable". It can make sure that
the key will be installed and used once in order to prevent key
reinstallation attack.
Key 1 – Key 4
Click the link of RADIUS Server to access into the following page for more settings.
VigorAP 920R Series User’s Guide
Four keys can be entered here, but only one key can be
selected at a time. The format of WEP Key is restricted to 5
ASCII characters or 10 hexadecimal values in 64-bit
encryption level, or restricted to 13 ASCII characters or 26
hexadecimal values in 128-bit encryption level. The allowed
content is the ASCII characters from 33(!) to 126(~) except '#'
and ','. Such feature is available for WEP mode.
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Available settings are explained as follows:
Item Description
Use internal RADIUS
Server
There is a RADIUS server built in VigorAP 920RP which is
used to authenticate the wireless client connecting to the access
point. Check this box to use the internal RADIUS server for
wireless security.
Besides, if you want to use the external RADIUS server for
authentication, do not check this box.
Please refer to the section,3.11 RADIUS Server to configure
settings for internal server of VigorAP 920RP.
IP Addr ess
Port
Enter the IP address of external RADIUS server.
The UDP port number that the external RADIUS server is
using. The default value is 1812, based on RFC 2138.
Shared Secret
The external RADIUS server and client share a secret that is
used to authenticate the messages sent between them. Both
sides must be configured to use the same shared secret.
Session Timeout
Set the maximum time of service provided before
re-authentication. Set to zero to perform another authentication
immediately after the first authentication has successfully
completed. (The unit is second.)
After finishing this web page configuration, please click OK to save the settings.
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For additional security of wireless access, the Access Control facility allows you to restrict the network access right by controlling the wireless LAN MAC address of client. Only the valid MAC address that has been configured can access the wireless LAN interface. By clicking the Access Control, a new web page will appear, as depicted below, so that you could edit the clients' MAC addresses to control their access rights (deny or allow).
Available settings are explained as follows:
Item Description
Policy
Select to enable any one of the following policy or disable the
policy. Choose Activate MAC address filter to type in the
MAC addresses for other clients in the network manually.
Choose Blocked MAC address filter, so that all of the devices
with the MAC addresses listed on the MAC Address Filter
table will be blocked and cannot access into VigorAP 920RP.
MAC Address Filter
Client’s MAC
Display all MAC addresses that are edited before.
Manually enter the MAC address of wireless client.
Address
Add
Delete
Edit
Add a new MAC address into the list.
Delete the selected MAC address in the list.
Edit the selected MAC address in the list.
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Cancel
Backup
Restore
After finishing this web page configuration, please click OK to save the settings.
33..77..44 WWPPSS
Open Wireless LAN>>WPS to configure the corresponding settings.
Give up the access control set up.
Click it to store the settings (MAC addresses on MAC Address
Filter table) on this page as a file.
Click it to restore the settings (MAC addresses on MAC
Address Filter table) from an existed file.
Available settings are explained as follows:
Item Description
Enable WPS
WPS Configured
Check this box to enable WPS setting.
Display related system information for WPS. If the wireless
security (encryption) function of VigorAP 920RP is properly
configured, you can see ‘Yes’ message here.
WPS SSID
WPS Auth Mode
Display current selected SSID.
Display current authentication mode of the VigorAP 920RP.
Only WPA2/PSK and WPA/PSK support WPS.
WPS Encryp Type
Display encryption mode (None, TKIP, AES, etc.) of VigorAP
920RP.
Configure via Push
Button
Click Start PBC to invoke Push-Button style WPS setup
procedure. VigorAP 920RP will wait for WPS requests from
wireless clients about two minutes. Both ACT and 2.4G
WLAN LEDs on VigorAP 920RP will blink quickly when
WPS is in progress. It will return to normal condition after two
minutes. (You need to setup WPS within two minutes)
Configure via Client
PinCode
Type the PIN code specified in wireless client you wish to
connect, and click Start PIN button. Both ACT and 2.4G
WLAN LEDs on VigorAP 920RP will blink quickly when
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WPS is in progress. It will return to normal condition after two
minutes. (You need to setup WPS within two minutes).
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This page is to determine which algorithm will be selected for wireless transmission rate.
Available settings are explained as follows:
Item Description
Channel Width
20 MHz- the AP will use 20MHz for data transmission and
receiving between the AP and the stations.
Auto 20/40 MHz – VigorAP will scan for nearby wireless AP
to determine which channel width (20MHz or 40MHz) shall be
used to meet the air situation. Usually, 40MHz would have
better performance under the clean wireless environment (e.g.,
less wireless traffic / contention). When the air condition is not
satisfied (e.g., dirty air), 20MHz will be used by VigorAP
automatically to ensure smooth network transmission.
40 MHz- the AP will use 40MHz for data transmission and
receiving between the AP and the stations.
Antenna
VigorAP can be attached with two antennas to have good data
transmission via wireless connection. However, if you have
only one antenna attached, please choose 1T1R.
Fragment Length
Set the Fragment threshold of wireless radio. Do not modify
default value if you don’t know what it is, default value is 2346.
RTS Threshold
Minimize the collision (unit is bytes) between hidden stations
to improve wireless performance.
Set the RTS threshold of wireless radio. Do not m odif y default
value if you don’t know what it is, default value is 2347.
Country Code
VigorAP broadcasts country codes by following the 802.11d
standard. However, some wireless stations will detect / scan
the country code to prevent conflict occurred. If conflict is
detected, wireless station will be warned and is unable to make
network connection. Therefore, changing the country code to
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ensure successful network connection will be necessary for
some clients.
Auto Channel
Filtered Out List
Isolate 2.4GHz and
5GHz bands
Isolate members with
IP
MAC Clone
The wireless channels selected in this field will be discarded if
AutoSelect is selected as Channel selection mode in Wireless
LAN>>General Setup.
The default setting is “Enable”. It means that the wireless
client using 2.4GHz band is unable to connect to the wireless
client with 5GHz band, and vice versa.
For WLAN 2.4GHz and 5GHz set with the same SSID name:
No matter such function is enabled or disabled, clients
using WLAN 2.4GHz and 5GHz can communicate for
each other if Isolate Member (in Wireless
LAN>>General Setup) is NOT enabled for such SSID.
Yet, if the function of Isolate Member (in Wireless
LAN>>General Setup) is enabled for such SSID, clients
using WLAN 2.4GHz and 5GHz will be unable to
communicate with each other.
The default setting is “Disable”.
If it is enabled, VigorAP will isolate different wireless clients
according to their IP address(es).
Click Enable and manually enter the MAC address of the
device with SSID 1. The MAC address of other SSIDs will
change based on this MAC address.
After finishing this web page configuration, please click OK to save the settings.
33..77..66 AAPP DDiissccoovveerryy
VigorAP 920RP can scan all regulatory channels and find working APs in the neighborhood.
Based on the scanning result, users will know which channel is clean for usage. Also, it can
be used to facilitate finding an AP for a WDS link. Notice that during the scanning process
(about 5 seconds), no client is allowed to connect to Vigor.
This page is used to scan the existence of the APs on the wireless LAN. Yet, only the AP
which is in the same channel of VigorAP 920RP can be found. Please click Scan to discover
all the connected APs.
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Each item is explained as follows:
Item Description
SSID
BSSID
Display the SSID of the AP scanned by VigorAP 920RP.
Display the MAC address of the AP scanned by VigorAP
920RP.
RSSI
Display the signal strength of the access point. RSSI is the
abbreviation of Received Signal Strength Indication.
Channel
Display the wireless channel used for the AP that is scanned by
VigorAP 920RP.
Encryption
Authentication
Scan
Display the encryption mode for the scanned AP.
Display the authentication type that the scanned AP applied.
It is used to discover all the connected AP. The results will be
shown on the box above this button
AP’s MAC Address
If you want the found AP applying the WDS settings, please
type in the AP’s MAC address.
AP’s SSID
To specify an AP to be applied with WDS settings, you can
specify MAC address or SSID for the AP. Here is the place
that you can type the SSID of the AP.
Add
Click Repeater for the specified AP. Next, click Add. Later,
the MAC address of the AP will be added and be shown on
WDS settings page.
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VigorAP 920RP can display the status such as MAC address, physical mode, power save and
bandwidth for the working AP connected with WDS. Click Refresh to get the newest
information.
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WMM is an abbreviation of Wi-Fi Multimedia. It defines the priority levels for four access
categories derived from 802.1d (prioritization tabs). The categories are designed with
specific types of traffic, voice, video, best effort and low priority data. There are four
accessing categories - AC_BE , AC_BK, AC_VI and AC_VO for WMM.
Available settings are explained as follows:
Item Description
WMM Capable
To apply WMM parameters for wireless data transmission,
please click the Enable radio button.
APSD Capable
APSD (automatic power-save delivery) is an enhancement over
the power-save mechanisms supported by Wi-Fi networks. It
allows devices to take more time in sleeping state and consume
less power to improve the performance by minimizing
transmission latency.
Aifsn
It controls how long the client waits for each data transmission.
Please specify the value ranging from 1 to 15. Such parameter
will influence the time delay for WMM accessing categories.
For the service of voice or video image, please set small value
for AC_VI and AC_VO categories For the service of e-mail or
web browsing, please set large value for AC_BE and AC_BK
categories.
CWMin/CWMax
CWMin means contention Window-Min and CWMax means
contention Window-Max. Please specify the value ranging from
1 to 15. Be aware that CWMax value must be greater than
CWMin or equals to CWMin value. Both values will influence
the time delay for WMM accessing categories. The difference
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between AC_VI and AC_VO categories must be smaller;
however, the difference between AC_BE and AC_BK categories
must be greater.
Txop
It means transmission opportunity. For WMM categories of
AC_VI and AC_VO that need higher priorities in data
transmission, please set greater value for them to get highest
transmission opportunity. Specify the value ranging from 0 to
65535.
AckPolicy
“Uncheck” (default value) the box means the AP will answer the
response request while transmitting WMM packets through
wireless connection. It can assure that the peer must receive the
WMM packets.
“Check” the box means the AP will not answer any response
request for the transmitting packets. It will have better
performance with lower reliability.
ACM
It is an abbreviation of Admission control Mandatory. It can
restrict stations from using specific category class if it is
checked.
Note: VigorAP 920RP provides standard WMM configuration
in the web page. If you want to modify the parameters, please
refer to the Wi-Fi WMM standard specification.
After finishing this web page configuration, please click OK to save the settings.
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The downstream or upstream from FTP, HTTP or some P2P applications will occupy large
of bandwidth and affect the applications for other programs. Please use Bandwidth
Management to make the bandwidth usage more efficient.
Available settings are explained as follows:
Item Description
SSID
Enable
Upload Limit
Download Limit
Auto Adjustment
Total Upload Limit
Total Download
Limit
Display the specific SSID name.
Check this box to enable the bandwidth management for clients.
Define the maximum speed of the data uploading which will be
used for the wireless stations connecting to VigorAP with the
same SSID.
Use the drop down list to choose the rate. If you choose User
defined, you have to specify the rate manually.
Define the maximum speed of the data downloading which will
be used for the wireless station connecting to VigorAP with the
same SSID.
Use the drop down list to choose the rate. If you choose User
defined, you have to specify the rate manually.
Check this box to have the bandwidth limit determined by the
system automatically.
When Auto Adjustment is checked, the value defined here will
be treated as the total bandwidth shared by all of the wireless
stations with the same SSID for data uploading.
When Auto Adjustment is checked, the value defined here will
be treated as the total bandwidth shared by all of the wireless
stations with the same SSID for data downloading.
After finishing this web page configuration, please click OK to save the settings.
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Airtime fairness is essential in wireless networks that must support critical enterprise
applications.
Most of the applications are either symmetric or require more downlink than uplink capacity;
telephony and email send the same amount of data in each direction, while video streaming
and web surfing involve more traffic sent from access points to clients than the other way
around. This is essential for ensuring predictable performance and quality-of-service, as well
as allowing 802.11n and legacy clients to coexist on the same network. Without airtime
fairness, offices using mixed mode networks risk having legacy clients slow down the entire
network or letting the fastest client(s) crowd out other users.
With airtime fairness, every client at a given quality-of-service level has equal access to the
network's airtime.
The wireless channel can be accessed by only one wireless station at the same time.
The principle behind the IEEE802.11 channel access mechanisms is that each station has
equal probability to access the channel. When wireless stations have similar data rate, this
principle leads to a fair result. In this case, stations get similar channel access time which is
called airtime.
However, when stations have various data rate (e.g., 11g, 11n), the result is not fair. The
slow stations (11g) work in their slow data rate and occupy too much airtime, whereas the
fast stations (11n) become much slower.
Take the following figure as an example, both Station A(11g) and Station B(11n) transmit
data packets through VigorAP 920RP. Although they have equal probability to access the
wireless channel, Station B(11n) gets only a little airtime and waits too much because Station
A(11g) spends longer time to send one packet. In other words, Station B(fast rate) is
obstructed by Station A(slow rate).
To improve this problem, Airtime Fairness is added for VigorAP 920RP. Airtime Fairness
function tries to assign similar airtime to each station (A/B) by controlling TX traffic. In the
following figure, Station B(11n) has higher probability to send data packets than Station
A(11g). By this way, Station B(fast rate) gets fair airtime and it's speed is not limited by
Station A(slow rate).
VigorAP 920R Series User’s Guide
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