Edge-Core WA6202A, WA6202AM User Manual

AeroExtend
by
SOHOWARE
WA6202A WA6202AM
2.4 GHz / 5 GHz Dual Band Outdoor Access Point / Bridge
User Guide
www.sohoware.com
User Guide
2.4 GHz / 5 GHz Wireless Access Point/Bridge
WA6202A IEEE 802.11g and 802.11a Dual-band Access Point / Bridge with
Integrated 5 GHz High-Gain Antenna
and External Antenna Options WA6202AM
IEEE 802.11g and 802.11a Dual-band Access Point / Bridge with
External Antenna Options
WA6202A WA6202AM F4.3.3.6 E112006-DT-R01 149100034900E
Compliances
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable
protection against harmful interference in a residential installation. This
equipment
generates, uses and can radiate radio frequency energy and, if not installed
and
used in accordance with the instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user
is
encouraged to try to correct the interference by one of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
Consult the dealer or an experienced radio/TV technician for help
FCC Caution: Any changes or modifications not expressly approved by the party
responsible
for compliance could void the user’s authority to operate this equipment. This
device
complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and (2) this device must
accept
any interference received, including interference that may cause undesired
operation.
IMPORTANT NOTE: FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum distance of 20 centimeters (8 inches) between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Wireless 5 GHz Band Statement:
As the access point can operate in the 5150-5250 MHz frequency band it is limited by the FCC, Industry Canada and some other countries to indoor use only so as to reduce the potential
for harmful interference to co-channel Mobile Satellite systems.
High power radars are allocated as primary users (meaning they have priority) of the 5250-5350 MHz and 5650-5850 MHz bands. These radars could cause interference and/ or damage to the access point.
i
VCCI Notice
This is a class A product based on the standard of the Voluntary Control Council for Interference
by
Information Technology Equipment (VCCI). If this equipment is used in a
domestic
environment, radio disturbance may arise. When such trouble occurs, the user
may
be
required to take corrective actions.
EC Conformance Declaration
Marking by the above symbol indicates compliance with the Essential Requirements of the
R&TTE Directive of the European Union (1999/5/EC). This equipment meets the
following
conformance standards:
EN
60950 (IEC 60950) - Product Safety
EN
301 893 - Technical requirements for 5 GHz radio equipment
EN
300 328 - Technical requirements for 2.4 GHz radio equipment
EN
301 489-1 / EN 301 489-17 - EMC requirements for radio equipment
Countries of Operation & Conditions of Use in the European Community
This device is intended to be operated in all countries of the European Community. Requirements
for indoor vs. outdoor operation, license requirements and allowed
channels
of
operation apply in some countries as described below:
Note:
The user must use the configuration utility provided with this product to ensure the channels
of
operation are in conformance with the spectrum usage rules for
European
Community countries as described below.
This device requires that the user or installer properly enter the current country of operation
in
the command line interface as described in the user guide, before operating
this device.
This device will automatically limit the allowable channels determined by the current country
of
operation. Incorrectly entering the country of operation may result in illegal
operation
and may cause harmful interference to other system. The user is obligated to
ensure
the device is operating according to the channel limitations, indoor/outdoor
restrictions
and license requirements for each European Community country as
described
in
this document.
ii
This device employs a radar detection feature required for European Community operation in the 5 GHz band. This feature is automatically enabled when the country of operation
is
correctly configured for any European Community country. The presence of
nearby
radar operation may result in temporary interruption of operation of this device.
The
radar detection feature will automatically restart operation on a channel free of
radar.
The 5 GHz Turbo Mode feature is not allowed for operation in any European Community
country.
The current setting for this feature is found in the 5 GHz 802.11a Radio Settings
Window
as
described in the user guide.
The 5 GHz radio's Auto Channel Select setting described in the user guide must always remain
enabled to ensure that automatic 5 GHz channel selection complies with
European requirements. The current setting for this feature is found in the 5 GHz
802.11a Radio Settings Window as described in the user guide.
This device may be operated indoors or outdoors in all countries of the European Community using the 2.4 GHz band: Channels 1 - 13, except where noted below.
-
In
Italy the end-user must apply for a license from the national spectrum authority to
operate
this device outdoors.
-
In
Belgium outdoor operation is only permitted using the 2.46 - 2.4835 GHz band:
Channel
13.
-
In
France outdoor operation is only permitted using the 2.4 - 2.454 GHz band:
Channels
1 - 7
Operation Using 5 GHz Channels in the European Community
The user/installer must use the provided configuration utility to check the current channel of
operation and make necessary configuration changes to ensure operation occurs in
conformance
with European National spectrum usage laws as described below and elsewhere
in
this document.
Allowed 5GHz Channels in Each European Community Country Allowed Frequency Bands Allowed Channel Numbers
Countries
5.15 - 5.25 GHz*
36, 40, 44, 48
Austria, Belgium
5.15 - 5.35 GHz*
36, 40, 44, 48, 52, 56, 60, 64
France, Switzerland, Liechtenstein
5.15 - 5.35* & 5.470 - 5.725 GHz
36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
Denmark, Finland, Germany,
Iceland,
Ireland,
Italy, Luxembourg, Netherlands,
Norway,
Portugal,
Spain,
Sweden,
U.K.
iii
Allowed 5GHz Channels in Each European Community Country Allowed Frequency Bands
Allowed Channel Numbers
Countries
5 GHz Operation Not Allowed None
Greece
* Outdoor operation is not allowed using 5.15-5.35 GHz bands (Channels 36 - 64).
Channels
36 - 64
are currently not available for use.
Safety Compliance
Power Cord Safety
Please read the following safety information carefully before installing the device:
Warning: Installation and removal of the unit must be carried out by qualified personnel
only.
The unit must be connected to an earthed (grounded) outlet to comply with international safety
standards.
Do
not connect the unit to an A.C. outlet (power supply) without an earth (ground)
connection.
The appliance coupler (the connector to the unit and not the wall plug) must have a configuration
for mating with an EN 60320/IEC 320 appliance inlet.
The socket outlet must be near to the unit and easily accessible. You can only remove power
from the unit by disconnecting the power cord from the outlet.
This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC
60950. The conditions are only maintained if the equipment to which it is connected also operates
under SELV conditions.
France and Peru only
This unit cannot be powered from IT
supplies. If your supplies are of IT type, this unit
must
be
powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the
secondary
connection point labelled Neutral, connected directly to earth (ground).
Impédance à la terre
Important! Before making connections, make sure you have the correct cord set. Check
it (read the label on the cable) against the following:
iv
Power Cord Set
The cord set must be UL-approved and CSA certified. The minimum specifications for the flexible cord are:
- No. 18 AWG - not longer than 2 meters, or 16 AWG.
- Type SV or SJ
- 3-conductor The cord set must have a rated current capacity of at least 10 A
U.S.A. and Canada
The attachment plug must be an earth-grounding type with NEMA
5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V)
configuration.
Denmark
The supply plug must comply with Section 107-2-D1, Standard DK2-1a or DK2-5a.
Switzerland
The supply plug must comply with SEV/ASE 1011. The supply plug must comply with BS1363 (3-pin 13 A) and be
fitted
with a 5 A fuse which complies with BS1362.
U.K.
The mains cord must be <HAR> or <BASEC> marked and be of type
HO3VVF3GO.75 (minimum). The supply plug must comply with CEE7/7 (“SCHUKO”). The mains cord must be <HAR> or <BASEC> marked and be of
type
HO3VVF3GO.75 (minimum).
Europe
IEC-320 receptacle
.
Veuillez lire à fond l'information de la sécurité suivante avant d'installer l’appareil: AVERTISSEMENT: L’installation et la dépose de ce groupe doivent être confiés à un
personnel
qualifié.
Ne
branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il
n'y
a
pas de connexion de mise à la terre (mise à la masse).
Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter les normes internationales de sécurité.
Le
coupleur d’appareil (le connecteur du groupe et non pas la prise murale) doit
respecter
une configuration qui permet un branchement sur une entrée d’appareil EN
60320/IEC 320.
La
prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile.
Vous
ne
pouvez mettre l’appareil hors circuit qu’en débranchant son cordon électrique
au
niveau de cette prise.
v
L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme IEC 60950. Ces conditions ne sont maintenues que si l’équipement auquel il est
raccordé fonctionne dans les mêmes conditions.
France et Pérou uniquement:
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations
sont du type impédance à la terre, ce groupe doit être alimenté par une
tension
de
230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport 1:1, avec
un
point secondaire de connexion portant l’appellation Neutre et avec raccordement
direct à la terre (masse).
Cordon é lectrique - Il doit ê tre agr
éé dans le pays d’utilisation
Le cordon doit avoir reçu l’homologation des UL et un certificat de
la
CSA.
Les spécifications minimales pour un cable flexible sont AWG No.
18, ouAWG No. 16 pour un cable de longueur inférieure à 2
mètres.
- type SV ou SJ
- 3 conducteurs Le cordon doit être en mesure d’acheminer un courant nominal
d’au
moins 10 A.
Etats-Unis et Canada:
La prise femelle de branchement doit être du type à mise à la terre
(mise à la masse) et respecter la configuration NEMA
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V).
Danemark:
La prise mâle d’alimentation doit respecter la section 107-2 D1 de la norme DK2 1a ou DK2 5a.
Suisse:
La prise mâle d’alimentation doit respecter la norme SEV/ASE
1011.
Europe
La prise secteur doit être conforme aux normes CEE 7/7 (“SCHUKO”)
LE cordon secteur doit porter la mention <HAR> ou <BASEC> et doit être de type HO3VVF3GO.75 (minimum).
vi
Bitte unbedingt vor dem Einbauen des Geräts die folgenden Sicherheitsanweisungen durchlesen
(Germany)
:
WARNUNG: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal
erfolgen.
Das Gerät sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden.
Das Gerät muß an eine geerdete Steckdose angeschlossen werden, welche die internationalen
Sicherheitsnormen erfüllt.
Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß einen
gemäß EN 60320/IEC 320 konfigurierten Geräteeingang haben.
Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung
des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus
der
Netzsteckdose unterbrochen werden.
Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese Bedingungen sind nur gegeben, wenn
auch die an das Gerät angeschlossenen Geräte unter SELV-Bedingungen
betrieben
werden.
vii
Stromkabel.
Dies muss von dem Land, in dem es benutzt wird geprü ft
werden:
Der Cord muß das UL gepruft und war das CSA beglaubigt. Das Minimum spezifikation fur der Cord sind:
- Nu. 18 AWG - nicht mehr als 2 meter, oder 16 AWG.
- Der typ SV oder SJ
- 3-Leiter Der Cord muß haben eine strombelastbarkeit aus wenigstens
10 A
U.S.A und Canada
Dieser Stromstecker muß hat einer erdschluss mit der typ NEMA
5-15P (15A, 125V) oder NEMA 6-15P (15A, 250V)
konfiguration.
Danemark
Dieser Stromstecker muß die ebene 107-2-D1, der standard DK2-1a oder DK2-5a Bestimmungen einhalten.
Schweiz
Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalten.
Europe
Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung) sein und die Aufschrift <HAR> oder <BASEC> tragen.
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).
viii
Table o f Co n tents
Chapter 1: Introduction 1-1
Radio Characteristics 1-1 Package Checklist 1-2 Hardware Description 1-2 LED Indicators 1-3 Integrated High-Gain Antenna 1-5 External Antenna Options 1-5 Ethernet Port 1-6 Power Injector Module 1-6 Grounding Point 1-7 Water Tight Test Point 1-7 Wall- and Pole-Mounting Bracket Kit 1-7 System Configuration 1-8 Features and Benefits 1-8
Chapter 2: Network Configuration 2-1
Access Point Topologies 2-1
Infrastructure Wireless LAN 2-2 Infrastructure Wireless LAN for Roaming Wireless PCs 2-3
Bridge Link Topologies 2-4
Point-to-Point Configuration 2-4 Point-to-Multipoint Configuration 2-5
Chapter 3: Bridge Link Planning 3-1
Data Rates 3-1 Radio Path Planning 3-1
Antenna Height 3-2 Antenna Position and Orientation 3-4 Radio Interference 3-5
Weather Conditions 3-5 Ethernet Cabling 3-5 Grounding 3-6
Chapter 4: Hardware Installation 4-1
Testing Basic Link Operation 4-1 Mount the Unit 4-1
ix
Contents
Mounting to a Wall 4-4 Connect External Antennas 4-5 Connect Cables to the Unit 4-6 Connect the Power Injector 4-7 Align Antennas 4-8
Chapter 5: Initial Configuration 5-1
Initial Setup through the CLI 5-1
Required Connec tions 5-1 Initial Configuration Steps 5-2
Logging In 5-3
Chapter 6: Syst em Con figuration 6-1
Advanced Configuration 6-2
System Identification 6-3 TCP / IP Settings 6-5 RADIUS 6-7 SSH Settings 6-11 Authentication 6-12 Filter Control 6-17 VLAN 6-19 WDS Settings 6-21 AP Management 6-27 Administration 6-28 System Log 6-33 RSSI 6-37
SNMP 6-40
Configuring SNMP and Trap Message Parame ters 6-41 Configuring SNMPv3 Users 6-46 Configuring SNMPv3 Trap Filters 6-48 Configuring SNMPv3 Targets 6-50
Radio Interface 6-52
Radio Settings A (802.11a) 6-53 Radio Settings G (802.11g) 6-70 Security 6-73
Status Information 6-90
Access Po i nt S tat u s 6-90 Station Status 6-93 Event Logs 6-95 STP Status 6-97
x
Contents
Chapter 7: Command Line Interface 7-1
Using the Command Line Interface 7-1
Accessing the CLI 7 -1
Console Connection 7-1
Telnet Connection 7-1 Entering Commands 7-2
Keywords and Argum ents 7-2
Minimum Abbreviation 7-2
Command Completion 7-3
Getting Help on Commands 7-3
Partial Keyword Lookup 7-4
Negating the Effect of Commands 7-4
Using Command History 7-4
Understanding Command Modes 7-4
Exec Commands 7-5
Configuration Commands 7-5
Comm and Line Proc essin g 7-6 Command Groups 7-6 General Commands 7-7
configure 7-8
end 7-8
exit 7-8
ping 7-9
reset 7-10
show history 7-10
show line 7-11 System Management Commands 7-11
country 7-12
prompt 7-14
system name 7-14
username 7-15
password 7-15
ip ssh-server enable 7-16
ip ssh-server port 7-16
ip telnet-server enable 7-17
ip http port 7-17
ip http server 7-18
ip http sess ion-timeout 7-18
ip https port 7-19
ip https server 7-19
APmgmtIP 7-21
APmgmtUI 7-22
show apmanagement 7-22
show system 7-23
xi
Contents
show version 7-24 show config 7-24 show hardware 7-28
System Logging Commands
7-28
logging on
7-29
logging host
7-29
logging consol e
7-30
logging le vel
7-30
logging facility-type
7-31
logging clear
7-32 show logging 7-32 show event-log
7-33
System Clock Commands
7-33 sntp-server ip
7-34 sntp-server enable
7-34 sntp-server date-time
7-35 sntp-server daylight-saving 7-36 sntp-server timezone
7-36 show sntp
7-37
DHCP Relay Commands 7-38
dhcp-relay enable 7-38 dhcp-relay 7-39 show dhcp-relay 7-39
SNMP Commands 7-40
snmp-server community
7-41 snmp-server contact
7-41 snmp-server location
7-42 snmp-server enable server
7-42 snmp-server host
7-43 snmp-server trap
7-44 snmp-server e ngine -id
7-45 snmp-server user
7-46 snmp-server targets
7-48 snmp-server filter
7-49 snmp-server filter-assignments
7-50 show snmp groups 7-50 show snmp users
7-51 show snmp group-assignments 7- 51 show snmp target
7-52 show snmp filter
7-52 show snmp filter-assignments
7-53 show snmp
7-54
Flash/File C omm ands 7-55
bootfile 7-55 copy 7-56
xii
Contents
delete 7-57 dir 7-58 show bootfile 7-58
RADIUS Client 7-59
radius-server address 7-59 radius-server port 7-60 radius-server key 7-60 radius-server retransmit 7-61 radius-server timeout 7-61 radius-server port-accounting 7-62 radius-server timeout-interim 7-62 radius-server radius-mac-format 7-63 radius-server vlan-format 7-63 show radius 7-64
802.1X Authentication 7-65
802.1x 7-65
802.1x-supplicant enable 7-66
802.1x-supplicant user 7-67 show authentication 7-68
MAC Address Authentication 7-69
address filter default 7-69 address filter entry 7-70 address filter delete 7-70 mac-authentication server 7-71 mac-authentication session-timeout 7-71
Filtering Commands 7-72
filter lo c al- bridg e 7-73 filter ap-manage 7-73 filter uplink enable 7-74 filter uplink 7-74 filter ethernet-type enable 7-74 filter ethernet-type protocol 7-75 show filters 7-76
WDS Bridge Commands 7-76
bridge mode 7-77 bridge role (WDS) 7-77 bridge channel-auto-sy n c 7-78 bridge-link parent 7-78 bridge-link child 7-79 bridge dynamic-en try age-time 7-80 show bridge aging-time 7-80 show bridge filter-entry 7-81 show bridge link 7-81
Spanning Tree Commands 7-83
bridge stp en able 7-83
xiii
Contents
bridge stp forw arding-delay 7-84 bridge stp he llo-time 7-84 bridge stp max- age 7-85 bridge stp pri ority 7-85 bridge-link path- cost 7-86 bridge-link port-priority 7-86 show bridge stp 7-87
Ethernet Interface Commands 7-88
interface ethernet 7-88 dns server 7-89 ip address 7-89 ip dhcp 7-90 speed-duplex 7-91 shutdown 7-92 show interface ethernet 7-92
Wireless Interface Commands 7-93
interface wireless 7-95 vap 7-95 speed 7-96 turbo 7-96 multicast-data-rate 7-97 channel 7-98 transmit-power 7-98 radio-mode 7-99 preamble 7-100 antenna control 7-101 antenna id 7-101 antenna location 7-102 beacon-interval 7-103 dtim-period 7-103 fragmentation-length 7-104 rts-threshold 7-105 super-a 7-106 super-g 7-106 description 7-107 ssid 7-107 closed-system 7-108 max-association 7-108 assoc-timeout-interval 7-109 auth-timeout-value 7-109 shutdown 7-109 show interface wireless 7-111 show station 7-113
Rogue AP Detection Commands 7-114
rogue-ap enable 7-114
xiv
Contents
rogue-ap authenticate 7-115 rogue-ap duration 7-116 rogue-ap interval 7-116 rogue -ap sc a n 7-117 show rogue-ap 7-118
Wireless Security Commands 7-118
auth 7-119 encryption 7-121 key 7-122 transmit-key 7-123 cipher-suite 7-124 mic_mode 7-125 wpa-pre-shared-key 7-126 pmksa-lifetime 7-126 pre-authentication 7-127
Link I nt e gr ity Co mma nds 7- 128
link-integrity ping-detect 7-129 link - in t egr i t y pi n g- h os t 7-1 29 link-integrity ping-interval 7-130 link-integrity ping-fail-retry 7-130 link-integrity ethernet-detect 7-130 show link-integrity 7-131
IAPP Commands 7-132
iapp 7-132
VLAN C ommands 7-133
vlan 7-133 management-vlanid 7-134 vlan-id 7-134
WMM Commands 7-135
wmm 7-136 wmm-acknowledge-policy 7-136 wmmparam 7-137
Appendix A: Troubleshooting A-1
Appendix B: Cables and Pinouts B-1
Twisted-Pair Cable Assignments B-1
10/100BASE-TX Pin Assignments B-1 Straight-Through Wiring B-2 Crossover Wiring B-3 8-Pin DIN Connector Pinout B-3 8-Pin DIN to RJ-45 Cable Wiring B-4
xv
Contents
Appendix C: Specifications C-1
General Specifications C-1 Sensitivity C-4 Transmit Power C-5 Antenna Spec ifications C-6
18 dBi High Gain D irectional
Panel (2.4GHz) C-6 8 dBi Omnidirectional (2.4 GHz) C-7 10 dBi Sector (2.4 GH z) C-8 8 dBi Omnidirectional (2.4 GHz) C-9 8 dBi Omnidirectional (5 GHz) C-10
12.5~13.5 dBi 60-Degree Sector
(5 GHz) C-11 8 dBi Omnidirectional (5 GHz) C-12 23 dBi High-Ga in Panel (5 GHz) C-13 8 dBi Omnidirectional (5 GHz) C-14 8 dBi Omnidirectional (5 GHz) C-15
Appendix D: Montieren der Bridge D-1
Verwenden der Halterung für Mastmontage D-1 Verwenden der Halterung für Wandmontage D-3 Anschließen der externen Antennen D-5 Anschließen der Kabel an das Gerät D-6 Anschließen des PoE Injecto rs D-7
Glossary Index
xvi
Chapter 1: Introduction
The Dual-band Outdoor Access Point / Bridge system consists of two models that provide
point-to-point or point-to-multipoint bridge links between remote Ethernet
LANs,
and wireless access point services for clients in the local LAN area:
WA6202A – Includes an integrated high-gain antenna for the 802.11a radio and is
designed
to
operate as a “bridge node” in point-to-m ultipoint configurations, or
provide
a
high-speed point-to-point wireless link between two sites that can be up to
15.4 km (9.6 miles) apart. The 802.11b/g radio requires an external antenna option.
WA6202AM – Provides only external antenna options and is designed to operate
as
the “root bridge” in point-to-multipoint configurations, supporting wireless bridge
connections
to as
many as six units.
Note:
Both models can be set to operate in either “root bridge” or “bridge node” mode.
Each model is housed in a weatherproof enclosure for mounting outdoors and includes
its own brackets for attaching to a wall, pole, radio mast, or tower structure.
The
unit is powered through its Ethernet cable connection from a power injector
module
that is installed indoors.
The wireless bridge system offers a fast, reliable, and cost-effective solution for connectivity
between remote Ethernet wired LANs or to provide Internet access to
an
isolated site. The system is also easy to install and operate, ideal for situations
where
a
wired link may be difficult or expensive to deploy. The wireless bridge
connection
provides data rates of up to 108 Mbps.
In addition, both wireless bridge models offer full network management capabilities through
an
easy-to-use web interface, a command-line interface, and support for
Simple
Network Management Protocol (SNMP) tools.
Radio Characteristics
The IEEE 802.11a and 802.11g standards use a radio modulation technique known as
Orthogon al Frequency Division Multiplexing (OFDM), and a shared collision
domain
(CSMA/CA). The 802.11a standard operates in the 5 GHz Unlicensed
National Information Infrastructure (UNII) band, and the 802.11g standard in the
2.4 GHz band. IEEE 802.11g includes backward compatibility with the IEEE 802.11b standard.
IEEE
802.11b also operates at 2.4 GHz, but uses Direct Sequence Spread Spectrum (DSSS) and Complementary Code Keying (CCK) modulation technology to achieve a communication rate of up to 11 Mbps.
The wireless bridge provides a 54 Mbps half-duplex connection for each active channel
(up to 108 Mbps in turbo mode on the 802.11a interface).
1-1
1
Introduction
Package Checklist
The Dual-band Outdoor Access Point / Bridge package includes:
One Wireless Dual-band Access Point (WA6202A or WA6202AM)
One Category 5e network PoE cable, length 98 ft (30 m)
One power injector module and power cord 5.9 ft (1.8 m)
One RS232 console cable 5.9ft (1.8 m)
Outdoor pole- and wall-mounting bracket kit
User Guide CD
Inform your dealer if there are any incorrect, missing or damaged parts. If possible,
retain the carton, including the original packing materials. Use them again to repack
the product in case there is a need to return it.
Hardware Description
Bottom View (both models)
Console Port CoverAttachment
Top View (WA6202A)
Console Port
Ethernet/PoE
Connector
Water-Tight Test Point (DO NOT REMOVE)
Integrated Antenna
N-Type External Antenna Connector (2.4 GHz)
N-Type External Antenna Connector (5 GHz)
N-Type External Antenna Connector (2.4 GHz)
1-2
LED Indicators
1
Top View (WA6202AM)
N-Type External Antenna Connector (2.4 GHz) Right Antenna
N-Type External Antenna Connector (5 GHz) Right Antenna
N-Type External Antenna Connector (5 GHz) Left Antenna
N-Type External Antenna Connector (2.4 GHz) Left Antenna
LED Indicators
The access point includes eight status LED indicators, as indicated in the following figure.
802.11b/g Wireless
Link/Activity
11b/g
11a
Power
Link
Power
Ethernet Link/Activity
802.11a Wireless Link/Activity
The following table describes the system status LEDs.
LED
Status
Description
On Green
Indicates that the system is working normally.
Power
On Amber
Indicates a system reset.
On Green
Indicates a valid 10/100 Mbps Ethernet cable link.
Link
Flashing Green
Indicates that the access point is transmitting or receiving data on
a
10/100 Mbps Ethernet LAN. Flashing rate is proportional
to network activity.
1-3
1
Introduction
The 11a and 11b/g LEDs operate in two display modes, which are configurable through
the management interface. The RSSI mode is for aligning antennas in a
bridge
link. The AP mode is for indicating data traffic rates.
The following table describes the wireless status LEDs in AP mode.
LED
Status
Description
Off
No signal detected or the 802.11a radio is disabled.
Slow Flashing Green
The
802.11a radio is enabled with a low level of network
activity.
Fast Flashing Green Indicates a medium level of network activity.
11a (three LEDs)
On Green
Indicates a high level of network activity.
Off
No signal detected or the 802.11b/g radio is disabled.
Slow Flashing Green
The
802.11b/g radio is enabled with a low level of network
activity.
Fast Flashing Green Indicates a medium level of network activity.
11b/g (three LEDs)
On Green
Indicates a high level of network activity.
The following table describes the wireless status LEDs in RSSI mode.
LED
Status
Description
Off
No signal detected or the 802.11a radio is disabled. Slow Flashing Green The 802.11a radio is enabled with a low level signal. Fast Flashing Green Indicates a medium level signal.
11a (three LEDs)
On Green
Indicates a high level signal. Off
No signal detected or the 802.11b/g radio is disabled. Slow Flashing Green The 802.11b/g radio is enabled with a low level signal. Fast Flashing Green Indicates a medium level signal.
11b/g (three LEDs)
On Green
Indicates a high level signal.
1-4
Integrated High-Gain Antenna
Integrated High-Gain Antenna
1
The WA6202A unit includes an integrated high-gain (17 dBi) flat-panel antenna for 5 GHz operation. The antenna can provide a direct line-of-sight link up to 15.4 km (9.6 miles) with a 6 Mbps data rate.
External Antenna Options
The WA6202AM unit does not include an integrated antenna, but provides various external
antenna options for both 5 GHz and 2.4 GHz operation. In a
point-to-m ultipoint configuration, an external high-gain omnidirectional, sector, or
high-gain panel antenna can be attached to communicate with bridges spread over
a wide area. The WA6202A and WA6202AM units both require an omnidirectional or sector
external antenna for 2.4 GHz operation. The following table summarizes the
external
antenna options:
Model Number Antenna Type
Gain (dBi)
HPBW* Horizontal
HPBW* Vertical
Polarization
ACC04-0500 90 2.4 GHz ~ 2.5 GHz
High Gain Directional Panel
18
15
15
Linear, vertical
ACC04-0502 8A (with mounting bracket)
and
ACC04-0542 7A
2.4 GHz ~ 2.5 GHz Omnidirectional
8
360
15
Linear, vertical
ACC04-0538 30A 2.4 GHz ~ 2.5 GHz
Sector
10
120
15
Linear, vertical
ACC04-0903 80 5.47 GHz ~ 5.875 GHz
Omnidirectional
8
360
12
Linear, vertical
ACC04-2000 10 4.9 GHz ~ 5.15 GHz
5.15 GHz ~ 5.875 GHz 120-Degree Sector
12.5
13.5
120 120
6 6
Linear, vertical Linear, vertical
ACC04-2001 80 5.5 GHz ~ 5.825 GHz
Omnidirectional
8
360
12
Linear, vertical
ACC04-2021 2A 5.15 ~ 5.875 GHz
High-Gain Panel
23
9
9
Linear
ACC04-202130 5.15 GHz ~5.35 GHz
Omnidirectional
8
360
12
Linear, vertical
ACC05-200180 4.9 GHz ~ 5.35 GHz
Omnidirectional
8
360
12
Linear, vertical
* Half-power beam width in degrees
External antennas connect to the N-type RF connectors on the wireless bridge either directly or using coaxial cables.
1-5
1
Introduction
Ethernet Port
The wireless bridge has one 10BASE-T/100BASE-TX 8-pin DIN port that connects to
the power injector module using the included Ethernet cable. The Ethernet port
connection
provides power to the wireless bridge as well as a data link to the local
network.
The wireless bridge appears as an Ethernet node and performs a bridging function by
moving packets from the wired LAN to the remote end of the wireless bridge link.
Note:
The power injector module does not support Power over Ethernet (PoE) based on
the
IEEE 802.3af standard. The wireless bridge unit must always be powered on
by
being connected to the power injector module.
Power Injector Module
The wireless bridge receives power through its network cable connection using power-over-Ethernet technology. A power injector module is included in the wireless bridge
package and provides two RJ-45 Ethernet ports, one for connecting to the
wireless
bridge (Output), and the other for connecting to a local LAN switch (Input).
The Input port uses an MDI (i.e., internal straight-through) pin configur ation. You can therefore
use straight-through twisted-pair cable to connect this port to most network
interconnection
devices such as a switch or router that provide MDI-X ports. However, when connecting the access point to a workstation or other device that does not have MDI-X ports, you must use crossover twisted-pair cable.
LED Indicator
AC Power Socket
(Hidden)
Input Output
Ethernet from Local Network
Ethernet and Power to Wireless Bridge
The wireless bridge does not have a power switch. It is powered on when its Ethernet port is connected to the power injector module, and the power injector module
is
connected to an AC power source. The power injector includes one LED
indicator
that turns on when AC power is applied.
1-6
Grounding Point
1
The power injector module automatically adjusts to any AC voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.
Warning: The power injector module is designed for indoor use only. Never mount
the
power injector outside with the wireless bridge unit.
Grounding Point
Even though the wireless bridge includes its own built-in lightning protection, it is important
that the unit is properly connected to ground. A grounding screw is
provided
for attaching a ground wire to the unit.
Water Tight Test Point
Caution: Do no remove or loosen this screw. Doing so could lead to damage of the
unit.
Wall- and Pole-Mounting Bracket Kit
The wireless bridge includes a bracket kit that can be used to mount the bridge to a wall,
pole, radio mast, or part of a tower structure.
1-7
1
Introduction
System Configuration
At each location where a unit is installed, it must be connected to the local network using
the power injector module. The following figure illustrates the system
component
connections.
External Antenna
Indoor Outdoor
RF Coaxial Cable
LAN Switch
Ethernet Cable
Power Injector
Lightning
Arrestor
Ethernet
Cable
Wireless Bridge Unit
AC Power
Ground Wire
Features and Benefits
WA6202A units support a 5 GHz point-to-point wireless link up 15.4 km (at 6 Mbps
data
rate) using integrated high-gain 17 dBi antennas
WA6202AM units support 5 GHz point-to-multipoint links using various external
antenna
options
Both WA6202A and WA6202AM units also support access point services for the
5 GHz and 2.4 GHz radios using various external antenna options
Maximum data rate up to 108 Mbps
Outdoor weatherproof design
IEEE 802.11a and 802.11b/g compliant
Local network connection via 10/100 Mbps Ethernet port
Powered through its Ethernet cable connection to the power injector module
Includes wall- and pole-mount bracket
Security through 64/128/152-bit Wired Equivalent Protection (WEP) or 128-bit
Advanced Encryption Standard (AES) encryption
Scans all available channels and selects the best channel and data rate based on
the
signal-to-noise ratio
Mana geable through an easy-to-use web-browser interface, command line (via
Telnet), or SNMP network management tools
1-8
Chapter 2: Network Configuration
The Dual-band Outdoor Access Point / Bridge system provides access point and bridging
services through either the 5 GHz or 2.4 GHz radio interfaces.
The wireless bridge units can be used just as normal 802.11a/b/g access points connected
to a
local wired LAN, providing connectivity and roaming services for
wireless
clients in an outdoor area. Units can also be used purely as bridges
connecting
remote LANs. Alternatively, you can employ both access point and
bridging
functions together, offering a flexible and convenient wireless solution for
many
applications.
This chapter describes the role of Dual-band Outdoor Access Point / Bridge in various
wireless network configurations.
Access Point Topologies
Operating as an outdoor access point, the unit is deployed in an integrated configuration
with wired Ethernet LANs, providing network access to wireless
stations
in
the wireless coverage area.
The access point’s radios can support these modes:
Infrastructure wireless LAN
Infrastructure wireless LAN with roaming
Point-to-point bridge link
Point-to-multipoint bridge links
The 802.11b and 802.11g frequency band, which operates at 2.4 GHz, can easily encounter
interference from other 2.4 GHz devices, such as other 802.11b or g
wireless
devices, cordless phones and microwave ovens. If you experience poor
wireless
LAN performance, try the following measures:
Limit any possible sources of radio interference within the service area
Increase the distance between neighboring access points
Increase the channe l separation of neighboring access points (e.g., up to 3 channels of separation for 802.11b or up to 5 channels for 802.11g)
2-1
2
Network Configuration
Infrastructure Wireless LAN
The access point function of the wireless bridge provides access to a wired LAN for
802.11a/b/g wireless workstations. An integrated wired/wireless LAN is called an Infrastructure
configuration. A Basic Service Set (BSS) consists of a group of
wireless
PC
users and an access point that is directly connected to the wired LAN.
Each
wireless PC in a BSS can connect to any computer in its wireless group or
access
other computers or network resources in the wired LAN infrastructu re through
the access point. The infrastructure configuration not only extends the accessibility of wireless PCs to
the
wired LAN, but also increases the effective wireless transmission range for
wireless PCs by passing their signals through one or more access points.
A wireless infrastructure can be used for access to a central database, or for connection
between mobile workers, as shown in the following figure.
Wired LAN Extension to Wireless Clients
Server
Desktop PC
Switch
Access Point
Notebook PC
Desktop PC
2-2
Access Point Topologies
2
Infrastructure Wireless LAN for Roaming Wireless PCs
The Basic Service Set (BSS) defines the communications domain for each access point
and its associated wireless clients. The BSS ID is a 48-bit binary number
based
on
the access point’s wireless MAC address, and is set automatically and
transparently
as
clients associate with the access point. The BSS ID is used in frames sent between the access point and its clients to identify traffic in the service area.
The BSS ID is only set by the access point, never by its clients. The clients only
need to set the Service Set Identifier (SSID) that identifies the service set provided by
one or more access points. The SSID can be manually configured by the clients,
can
be detected in an access point’s beacon, or can be obtained by querying for the
identity of the nearest access point. For clients that do not need to roam, set the SSID
for the wireless card to that used by the access point to which you want to
connect. A wireless infrastructure can also support roaming for mobile workers. More than
one
access point can be configured to create an Extended Service Set (ESS). By
placing
the access points so that a continuous coverage area is created, wireless
users
within this ESS can roam freely. All wireless network card adapters and
wireless
access points within a specific ESS must be configured with the same
SSID.
Seamless Roaming
Between Access Points
Server
Desktop PC
Switch
Switch
Access Point
Notebook PC
Notebook PC
Access Point
<BSS 2>
<BSS 1> <ESS>
Desktop PC
2-3
2
Network Configuration
Bridge Link Topologies
The IEEE 802.11 standard defines a WIreless Distribution System (WDS) for bridge connections
between BSS areas (access points). The outdoor wireless bridge uses
WDS
to
forward traffic on links between units. Up to 5 WDS links can be specified for a WA6202AM unit, which acts as the “Master” in the wireless bridge network. Other WA6202A
units support only one WDS link, which must be to the network’s master
unit. The unit supports WDS bridge links on either the 5 GHz (802.11a) or 2.4 GHz
(802.11b/g) bands and can be used with various external antennas to offer flexible deployment
options.
Note:
The external antennas offer longer range options using the 5 GHz radio, which makes
this interface more suitable for bridge links. The 2.4GHz radio has various
types
of
antenna options, but the 8dBi omnidirectional antenna is better suited for
local
access point services.
When using WDS on a radio band, only wireless bridge units can associate to each other.
Wireless clients can only associate with the wireless bridge using a radio band
set
to
access point mode.
Point-to-Point Configuration
Two WA6202A bridges can form a wireless point-to-point link using their integrated 5 GHz (802.11a) antennas. A point-to-point configuration can provide a limited data rate
(6
Mbps) link over a long range (up to 15.4 km), or a high data rate (108 Mbps)
over
a
short range (1.3 km).
WA6202A
WA6202A
LAN
LAN
2-4
Point-to-Multipoint Configuration
Bridge Link T opologies
2
A WA6202AM wireless bridge can use an omnidirectional or sector antenna to connect to as many as 6 bridges in a point-to-multipoint configuration. There can only
be
one “Master” unit in the wireless bridge network, all other bridges must be
“Slave” units. Using the 5 GHz 8 dBi omnidirectional external antenna, the WA6202AM can
connect
to
WA6202A units up to 3.3 km (2 miles) away. Using the 13.5 dBi
120-degree sector antenna, the WA6202AM can connect to WA6202A units up to
10.3 km (6.4 miles) away.
WA6202A
WA6202A
WA6202A
WA6202A
WA6202AM with
Omnidirectional
Antenna
WA6202A
WA6202A
WA6202A
WA6202AM with
Sector Antenna
WA6202A
WA6202A
2-5
2
Network Configuration
2-6
Chapter 3: Bridge Link Planning
The Dual-band Outdoor Access Point / Bridge supports fixed point-to-point or point-to-m ultipoint wireless links. A single link between two points can be used to connect
a
remote site to larger core network. Multiple bridge links can provide a way to
connect widespread Ethernet LANs. For each link in a wireless bridge network to be reliable and provide optimum
performance,
some careful site planning is required. This chapter provides guidance
and
information for planning your wireless bridge links.
Note: The planning and installation of the wireless bridge requires professional
personnel
that are trained in the installation of radio transmitting equipment. The user is responsible for compliance with local regulations concerning items such as antenna power, use of lightning arrestors, grounding, and radio mast or tower construction.
Therefore, it is recommended to consult a professional contractor
knowledgeable
in
local radio regulations prior to equipment installation.
Data Rates
Using its 5 GHz integrated antenna, the WA6202A Slave bridge can operate over a range
of up to
15.4 km (9.6 miles) or provide a high-speed connection of 54 Mbps (108 Mbps in turbo mode). However, the maximum data rate for a link decreases as the operating range increases.
When you are planning each wireless bridge link, take into account the maximum distance
and data rates for the various antenna options. See “Antenna
Specifications”
on
page C-6.
Radio Path Planning
Although the wireless bridge uses IEEE 802.11a radio technology, which is capable of reducing the effect of multipath signals due to obstructions, the wireless bridge link requires a “radio line-of-sight” between the two antennas for optimum performance.
The concept of radio line-of-sight involves the area along a radio link path through which
the bulk of the radio signal power travels. This area is known as the first
Fresnel Zone of the radio link. For a radio link not to be affected by obstacles along its path, no object, including the ground, must intrude within 60% of the first Fresnel Zone.
The following figure illustrates the concept of a good radio line-of-sight.
3-1
3
Bridge Link Planning
Visual Line of Sight
Radio Line of Sight
If there are obstacles in the radio path, there may still be a radio link but the quality and strength of the signal will be affected. Calculating the maximum clearance from objects
on a
path is important as it directly affects the decision on antenna placement and height. It is especially critical for long-distance links, where the radio signal
could easily be lost.
When planning the radio path for a wireless bridge link, consider these factors:
Avoid any partial line-of-sight between the antennas.
Be
cautious of trees or other foliage that may be near the path, or may grow and
obstruct
the path.
Be
sure there is enough clearance from buildings and that no building construction
may
eventual ly block the path.
Check the topology of the land between the antennas using topographical maps,
aerial
photos, or even satellite image data (software packages are available that
may
include this information for your area)
Avoid a path that may incur temporary blockage due to the movement of cars, trains,
or
aircraft.
Antenna Height
A reliable wireless link is usually best achieved by mounting the antennas at each end
high enough for a clear radio line of sight between them. The minimum height
required
depends on the distance of the link, obstacles that may be in the path,
topology
of
the terrain, and the curvature of the earth (for links over 3 miles).
For long-distance links, a mast or pole may need to be contsructed to attain the minimum
required height. Use the following table to estimate the required minimum
clearance
above the ground or path obstruction.
3-2
Radio Path Planning
3
.
Total Link Distance Max Clearance for
60% of First Fresnel Zone at 5.8 GHz
Approxim ate Clearance
for
Earth Curvature
Total Clearance Required at Mid-point of Link
0.25 mile (402 m)
4.5 ft (1.4 m)
0
4.5 ft (1.4 m)
0.5 mile (805 m)
6.4 ft (1.95 m)
0
6.4 ft (1.95 m)
1 mile (1.6 km)
9 ft (2.7 m)
0
9 ft (2.7 m)
2 miles (3.2 km)
12.7 ft (3.9 m)
0
12.7 ft (3.9 m)
3 miles (4.8 km)
15.6 ft (4.8 m)
1.8 ft (0.5 m)
17.4 ft (5.3 m)
4 miles (6.4 km)
18 ft (5.5 m)
3.2 ft (1.0 m)
21.2 ft (6.5 m)
5 miles (8 km)
20 ft (6.1 m)
5 ft (1.5 m)
25 ft (7.6 m)
7 miles (11.3 km)
24 ft (7.3 m)
9.8 ft (3.0 m)
33.8 ft (10.3 m)
9 miles (14.5 km)
27 ft (8.2 m)
16 ft (4.9 m)
43 ft (13.1 m)
12 miles (19.3 km)
31 ft (9.5 m)
29 ft (8.8 m)
60 ft (18.3 m)
15 miles (24.1 km)
35 ft (10.7 m)
45 ft (13.7 m)
80 ft (24.4 m)
17 miles (27.4 km)
37 ft (11.3 m)
58 ft (17.7 m)
95 ft (29 m)
Note that to avoid any obstruction along the path, the height of the object must be added
to
the minimum clearance required for a clear radio line-of-sight. Consider the
following
simple example, illustrated in the figure below.
Visual Line of Sight
Radio Line of Sight
3 miles (4.8 km)
2.4 m
A
20 m
17 m
5.4 m
1.4 m 9 m
12 m
A wireless bridge link is deployed to connect building A to a building B, which is located three miles (4.8 km) away. Mid-way between the two buidings is a small tree-covered hill. From the above table it can be seen that for a three-mile link, the object
clearance required at the mid-point is 5.3 m (17.4 ft). The tree-tops on the hill
are
at an
elevation of 17 m (56 ft), so the antennas at each end of the link need to be
at least 22.3 m (73 ft) high. Building A is six stories high, or 20 m (66 ft), so a 2.3 m
3-3
3
Bridge Link Planning
(7.5 ft) mast or pole must be contructed on its roof to achieve the required antenna height.
Building B is only three stories high, or 9 m (30 ft), but is located at an
elevation
that is 12 m (39 ft) higher than bulding A. To mount an anntena at the
required
height on building B, a mast or pole of only 1.3 m (4.3 ft) is needed.
Warning: Never construct a radio mast, pole, or tower near overhead power lines. Note: Local regulations may limit or prevent construction of a high radio mast or tower. If
your
wireless bridge link requires a high radio mast or tower, consult a
professional contractor for advice.
Antenna Position and Orientation
Once the required antenna height has been determined, other factors affecting the
precise position of the wireless bridge must be considered:
Be
sure there are no other radio antennas within 2 m (6 ft) of the wireless bridge
Place the wireless bridge away from power and telephone lines
Avoid placing the wireless bridge too close to any metallic, refective surfaces, such
as
roof-installed air-conditioning equipm ent, tinted windows, wire fences, or water
pipes
The wireless bridge antennas at both ends of the link must be positioned with the same
polarization direction, either horizontal or vertical
Antenna Polarization — The wireless bridge’s integrated antenna sends a radio
signal
that is polarized in a particular direction. The antenna’s receive sensitivity is
also
higher for radio signals that have the same polarization. To maximize the
performance
of
the wireless link, both antennas must be set to the same polarization
direction.
The unit should be mounted with the antenna sockets facing upwards.
Antenna sockets should point
upwards in a vertical
manner
3-4
Radio Interference
Ethernet Cabling
3
The avoidance of radio interference is an important part of wireless link planning. Interference
is
caused by other radio transmissions using the same or an adjacent
channel
frequency. You should first scan your proposed site using a spectrum
analyzer
to
determine if there are any strong radio signals using the 802.11a channel frequencies. Always use a channel frequency that is furthest away from another signal.
If radio interference is still a problem with your wireless bridge link, changing the antenna
polarization direction may improve the situation. This is only recommended
when
the integrated internal antenna is used.
Weather Conditions
When planning wireless bridge links, you must take into account any extreme weather
conditions that are known to affect your location. Consider these factors:
Temperat ure — The wireless bridge is tested for normal operation in temperatures
from
-40°C to 60°C. Operating in temperatures outside of this range may cause the
unit
to
fail.
Wind Velocity — The wireless bridge can operate in winds up to 44 m/s and
survive
higher wind speeds up to 66 m/s. You must consider the known maximum
wind
velocity and direction at the site and be sure that any supporting structure,
such
as a
pole, mast, or tower, is built to withstand this force.
Lightning — The wireless bridge includes its own built-in lightning protection.
However,
you should make sure that the unit, any supporting structure, and cables
are
all properly grounded. Additional protection using lightning rods, lightning
arrestors,
or
surge suppressors may also be employed.
Rain — The wireless bridge is weatherproofed against rain. Also, prolonged heavy
rain
has no significant effect on the radio signal. However, it is recommended to
apply
weatherproof sealing tape around the Ethernet port and antenna connectors
for
extra protection. If moisture enters a connector, it may cause a degradation in
performance
or
even a complete failure of the link.
Snow and Ice — Falling snow, like rain, has no significant effect on the radio
signal.
However, a build up of snow or ice on antennas may cause the link to fail. In this case, the snow or ice has to be cleared from the antennas to restore operation of the link.
Ethernet Cabling
When a suitable antenna location has been determined, you must plan a cable route form
the wireless bridge outdoors to the power injector module indoors. Consider
these
points:
The Ethernet cable length should never be longer than 100 m (328 ft)
Determine a building entry point for the cable
3-5
3
Bridge Link Planning
Determine if conduits, bracing, or other structures are required for safety or protection
of
the cable
For lightning protection at the power injector end of the cable, consider using a lightning
arrestor immediately before the cable enters the building
Grounding
It is important that the wireless bridge, cables, and any supporting structures are properly
grounded. The wireless bridge unit includes a grounding screw for attaching a ground wire. Be sure that grounding is available and that it meets local and national electrical codes.
3-6
Chapter 4: Hardware Installation
Before mounting antennas to set up your wireless bridge links, be sure you have selected
appropriate locations for each antenna. Follow the guidance and
information
in
Chapter 3: "Bridge Link Planning."
Also, before mounting units in their intended locations, you should first perform initial configuration
and test the basic operation of the wireless bridge links in a controlled
environment
over a very short range. (See the section “Testing Basic Link
Operation” in this chapter.) The wireless bridge includes its own bracket kit for mounting the unit to a 1.5 to
2 inch diameter steel pole or tube, or to a wall. The pole-mounting bracket allows the unit
to be
mounted to part of a radio mast or tower structure. The wall-mounting option
enables it to be fixed to a building wall or roof when using external antennas. Hardware installation of the wireless bridge involves these steps:
1. Mount the unit on a wall, pole, mast, or tower using the mounting bracket.
2. Mount external antennas directly on the bridge or on the same supporting structure
as
the bridge and connect them to the bridge unit.
3. Connect the Ethernet cable and a grounding wire to the unit.
4. Connect the power injector to the Ethernet cable, a local LAN switch, and an AC power source.
5. Align antennas at both ends of the link.
Testing Basic Link Operation
Set up the units over a very short range (15 to 25 feet), either outdoors or indoors. Connect
the units as indicated in this chapter and be sure to perform all the basic
configuration
tasks outlined in Chapter 5: "Initial Configuration." When you are
satisfied
that the links are operating correctly, proceed to mount the units in their
intended
locations.
Mount the Unit
The bridge can be mounted in the following ways using the included moun ting bracket:
To a
1.5 to 2 inch diameter Pole
To a
wall
4-1
4
Hardwar e Installatio n
The bridge’s mounting bracket has four parts. One rectangular plate that is used for pole
and wall mounting, one square plate that attaches directly to the bridge, and
two plates that form an adjustable V-shaped clamp for pole mounting.
Mounting
on a
Pole
Perform the following steps to mount the unit to a 1.5 to 2 inch diameter steel pole or tube
using the mounting bracket:
1. Fit the edges of the V-shaped clamp parts into the slots on the flat side of the rectangular
plate. The inner slots are for a 1.5 inch diameter pole and the outer
slots
for a 2 inch diameter pole.
2. Place the V-shaped clamp parts of the bracket around the pole and tighten the securing
nuts just enough to hold the bracket to the pole. (The bracket may
need
to be
rotated around the pole during the antenna alignment process.)
Fit the edges of the V-shaped part into the slots
Tighten the securing bolts
3. Attach the square mounting plate to the bridge with the supplied screws.
4-2
Mount the Unit
4
Attach the adjustable rectangular plate to the
bridge with
supplied screws
4. Attach the bridge with its mounting plate to the bracket already fixed to the pole.
Attach the bridge to the plate on the pole
5. Use the included nuts to secure the wireless bridge to the pole bracket. Note that the wireless bridge tilt angle may need to be adjusted during the antenna alignment
process.
4-3
4
Hardwar e Installatio n
Be sure to take account of the antenna polarization direction; all antennas in a link
must be mounted with the same polarization.
Mounting to a Wall
Perform the following steps to mount the unit to a wall using the wall-mounting bracket:
Note:
The wall-mounting bracket does not allow the wireless bridge’s intrgrated antenna to
be
aligned. It is intended for use with the unit using external antennas.
1. Attach the bracket to a wall with flat side flush against the wall (see following
figure). Position the bracket in the intended location and mark the position of
the four mounting screw holes.
2. Drill four holes in the wall that match the screws and wall plugs included in the bracket
kit, then secure the bracket to the wall.
3. Attach the square mounting plate to the bridge with the supplied screws.
4. Use the included nuts to tightly secure the wireless bridge to the bracket.
4-4
Connect External Antennas
4
Connect External Antennas
When deploying a WA6202AM unit for a bridge link or access point operation, you need
to
mount external antennas and connect them to the bridge. Typically, a bridge
link
requires a 5 GHz antenna, and access point operation a 2.4 GHz antenna.
WA6202A
units also require an external antenna for 2.4 GHz operation.
Perform these steps:
1. Mount the external antenna to the same supporting structure as the bridge, within
3 m
(10 ft) distance, using the bracket supplied in the antenna package.
2. Connect the antenna to the bridge’s N-type connector using the RF coaxial cable
provided in the antenna package. Some omnidirectional external
antennas
attach directly to an N-type connector without using a coaxial cable.
3. Apply weatherproofing tape to the antenna connectors to help prevent water entering
the connectors.
4. Set the antenna option for the corresponding antenna through the user interface.
See “Antenna ID” on page 6-60 and “Antenna Control Method” on
page
6-61.
4-5
4
Hardwar e Installatio n
2.4 GHz N-type Connector
5 GHz N-type Connector
5 GHz External High-gain
Panel
Antenna
2.4 GHz External Omnidirectional Antenna
RF Coaxial Cable
Connect Cables to the Unit
Warning: Do not connect or disconnect cables or otherwise work with the bridge
during
periods of lightning activity.
1. Attach the Ethernet cable to the Ethernet port on the wireless bridge.
2. For extra protection against rain or moisture, apply weatherproofing tape (not included)
around the Ethernet connector.
3. Be sure to ground the unit with an appropriate grounding wire (not included) by attaching
it to
the grounding point on the base of the unit using the screw
provided in the package.
Caution:
Be sure that grounding is available and that it meets local and national
electrical
codes. For additional lightning protection, use lightning rods,
lightning
arrestors, or surge suppressors.
Note:
The Ethernet cable included with the package is 30 m (100 ft) long.
4-6
Connect the Power Injector
4
Console Port
PoE (Ethernet) Port
Grounding Screw
Ground Wire
Ethernet Cable
Connect the Power Injector
To connect the wireless bridge to a power source:
Caution: Do not install the power injector outdoors. The unit is for indoor installation
only.
Caution: Install lightning protection at the power injector end of the Ethernet cable,
use
a
lightning arrestor immediate ly before the cable enters the building.
Note:
The wireless bridge’s Ethernet port does not support Power over Ethernet (PoE)
based
on
the IEEE 802.3af standard. Do not try to power the unit by connecting it
directly
to a
network switch that provides IEEE 802.3af PoE. Always connect the
unit
to
the included power injector module.
1. Connect the Ethernet cable from the wireless bridge to the RJ-45 port labeled “Output” on the power injector.
2. Connect a straight-through unshielded twisted-pair (UTP) cable from a local LAN
switch to the RJ-45 port labeled “Input” on the power injector. Use
Category
5e or
better UTP cable for 10/100BASE-TX connections.
Note:
The RJ-45 port on the power injector is an MDI port. If connecting directly to a computer
for testing the link, use a crossover cable.
4-7
4
Hardwar e Installatio n
Ethernet cable from
LAN switch
AC power
Power LED indicator
Ethernet cable to wireless bridge
1. Insert the power cable plug directly into the standard AC receptacle on the power injector.
2. Plug the other end of the power cable into a grounded, 3-pin socket, AC power source.
Note:
For International use, you may need to change the AC line cord. You must use a line
cord set that has been approved for the receptacle type in your country.
3. Check the LED on top of the power injector to be sure that power is being supplied
to
the wireless bridge through the Ethernet connection.
Align Antennas
After wireless bridge units have been mounted, connected, and their radios are operating,
the antennas must be accurately aligned to ensure optimum performance
on
the bridge links. This alignment process is particularly important for long-range
point-to-point
links. In a point-to-multipoint configuration the root bridge uses an
omnidirectional
or
sector antenna, which does not require alignment, but bridge nodes
still need to be correctly aligned with the root bridge antennna.
Point-to-Point Configurations – In a point-to-point configuration, the alignment
process
requires two people, one at each end of the link. The use of cell phones or
two-way
radio communication may help with coordination. To start, you can just
point the antennas at each other, using binoculars or a compass to set the general direction.
For accurate alignment, you must monitor the signal strength LEDs as the
antenna moves horizontally and vertically.
Point-to-Multipoint Configurations – In a point-to-multipoint configuration all
bridge
nodes must be aligned with the root bridge antenna. The alignment process is the same as in point-to-poi nt links, but only the bridge node end of the link requires
the alignment.
4-8
Align Antennas
4
The signal strength LEDs indicate the received radio signal strength for a particular bridge
link. The more LEDs that turn on, the stronger the signal. Alternatively, you
can
monitor the Receive Signal Strength Indicator (RSSI) value directly from the
management
interface. The higher the RSSI value, the stronger the signal.
When you move the antenna during alignment, the radio signal from the remote antenna can be seen to have a strong central main lobe and smaller side lobes. The object
of
the alignment process is to set the antenna so that it is receiving the
strongest
signal from the central main lobe.
Vertical Scan
Remote Antenna
Horizontal Scan
Maximum Signal
Strength Position for
Vertical Alignment
RSSI
Main Lobe Maximum
RSSI Value
Value
Side Lobe
Maximum
Maximum Signal Strength Position
for Horizontal Alignment
To align the antennas in the link, monitor the signal strength LEDs or the RSSI value in the management interface. Start with one antenna fixed and then perform the following
procedure on the other antenna:
Note:
The RSSI value can be configured through management interfaces to display a value
for specific WDS bridge links. See page 6-40 for more information.
High 11a Signal
11b/g
11a
Power Link
Medium 11a Signal
11b/g
11a
Power Link
Low 11a Signal
11b/g
11a
Power Link
4-9
4
Hardwar e Installatio n
1. Pan the antenna horizontally back and forth while checking the LEDs. If using the
pole-mounting bracket with the unit, you must rotate the mounting bracket
around
the pole. Other external antenna brackets may require a different
horizontal
adjustment.
2. Find the point where the signal is strongest (all LEDs on) and secure the horizontal
adjustment in that position.
Note:
Sometimes there may not be a central lobe peak because vertical alignment is too
far
off; only two similar peaks for the side lobes are detected. In this case, fix the
antenna
so
that it is halfway between the two peaks.
3. Loosen the vertical adjustment on the mounting bracket and tilt the antenna
slowly up and down while checking the LEDs.
4. Find the point where the signal is strongest and secure the vertical adjustment in that position.
4-10
Chapter 5: Initial Configuration
The Dual-band Outdoor Access Point / Bridge offers a variety of management options,
including a web-based interface, a direct connection to the console port,
Telnet,
Secure Shell (SSH), or using SNMP software.
The initial configuration steps can be made through the web browser interface or CLI. The access point requests an IP address via DHCP by default. If no response is received
from the DHCP server, then the access point uses the default address
192.168.1.1. If this address is not compatible with your network, you can first use the command line interface (CLI) as described below to configure a valid address.
Note:
Units sold in countries outside the United States are not configured with a specific
country
code. You must use the CLI to set the country code and enable wireless
operation
(page 5-3).
Initial Setup through the CLI
Required Connections
The access point provides an RS-232 serial port that enables a connection to a PC
or terminal for monitoring and configuration. Attach a VT100-compatible terminal, or a PC running a terminal emulation program to the access point. You can use the console
cable provided with this package, or use a cable that complies with the
wiring
assignments shown on page B-3.
To connect to the console port, complete the following steps:
1. Connect the console cable to the serial port on a terminal, or a PC running terminal
emulation software, and tighten the captive retaining screws on the
DB-9
connector.
2. Connect the other end of the cable to the RS-232 serial port on the access point.
3. Make sure the terminal emulation software is set as follows:
Select the appropriate serial port (COM port 1 or 2).
Set the data rate to 9600 baud.
Set the data format to 8 data bits, 1 stop bit, and no parity.
Set flow control to none.
Set the emulation mode to VT100.
When using HyperTerminal, select Terminal keys, not Windows keys.
4. Once you have set up the terminal correctly, press the [Enter] key to initiate the console
connection. The console login screen will be displayed.
5-1
5
Initial Configuration
For a description of how to use the CLI, see “Using the Command Line Interface” on page
7-1. For a list of all the CLI commands and detailed information on using the
CLI,
refer to “Command Groups” on page 7-6.
Initial Configuration Steps
Logging In – Enter “admin” for the user name. The default password is null, so just
press
[Enter] at the password prompt. The CLI prompt appears displaying the
access point’s name.
Username: admin Password: Enterprise
AP#
Setting the IP Address – By default, the access point is configured to obtain IP
address settings from a DHCP server. If a DHCP server is not available, the IP address
defaults to 192.168.1.1, which may not be compatible with your network.
You
will therefore have to use the command line interface (CLI) to assign an IP
address
that is compatible with your network.
Type “configure” to enter configuration mode, then type “interface ethernet” to access
the Ethernet interface-configuration mode.
Enterprise AP#configure Enterprise AP(config)#interface ethernet Enterprise AP(config-if)#
First type “no ip dhcp” to disable DHCP client mode. Then type “ip address ip-address netmask gateway,” where “ip-address” is the access point’s IP address, “netmask” is the network mask for the network, and “gateway” is the default gateway router.
Check with your system administrator to obtain an IP address that is
compatible
with your network.
Enterprise AP(if-ethernet)#no ip dhcp Enterprise AP(if-ethernet)#ip address 192.168.2.2
255.255.255.0 192.168.2.254
Enterprise AP(if-ethernet)#
After configuring the access point’s IP parameters, you can access the management interface from anywhere within the attached network. The command line interface can
also be accessed using Telnet from any computer attached to the network.
5-2
Logging In
5
Setting the Country Code – Units sold in the United States are configured by
default
to
use only radio channels 1-11 in 802.11b or 802.11g mode as defined by
FCC
regulatio ns. Units sold in other countries are configured by default without a
country
code (i.e., 99). You must use the CLI to set the country code. Setting the
country
code restricts operation of the access point to the radio channels and
transmit
power levels permitted for wireless networks in the specified country.
Type “exit” to leave configuration mode. Then type “country ?” to display the list of countries.
Select the code for your country, and enter the country command again,
following
by
your country code (e.g., tw for Taiwan).
Enterprise AP#country tw Enterprise AP#
Note:
Command examples shown later in this manual abbreviate the console prompt to “AP” for simplicity.
Logging In
There are only a few basic steps you need to complete to connect the access point to your corporate network, and provide network access to wireless clients.
The access point can be managed by any computer using a web browser (Internet Explorer
5.0 or above, or Netscape 6.2 or above). Enter the default IP address:
http://192.168.1.1
Logging In – Enter the username “admin,” the password is null, so just press just
leave
it
blank and click LOGIN. For information on configuring a user name and
password,
see page 6-28.
5-3
5
Initial Configuration
The home page displays the Main Menu.
5-4
Chapter 6: System Config urat i on
Before continuing with advanced configuration, first complete the initial configuration steps
described in Chapter 5 to set up an IP address for the access point.
The access point can be managed by any computer using a web browser (Internet Explorer
5.0 or above, or Netscape 6.2 or above). Enter the configured IP address of
the
access point, or use the default address: http://192.168.1.1
To log into the access point, enter the default user name “admin” and then press “LOGIN”. When the home page displays, click on Advanced Setup. The following page
will display.
The information in this chapter is organized to reflect the structure of the web screens
for easy reference. However, it is recommended that you configure a user
name
and password as the first step under Administration to control management
access
to
this device (page 6-28).
6-1
6
System Configuration
Advanced Configuration
The Advanced Configurati on pages include the following options.
Table 6-1.
Menu
Menu
Description
Page
System
Configures basic administrative and client access
6-3
Identification
Specifies the host name
6-3
TCP / IP Settings
Configures the IP address, subnet mask, gateway, and domain name
servers
6-4
RADIUS
Configures the RADIUS server for wireless client authentication and
accounting
6-7
SSH Settings
Configures Secure Shell management access
6-11
Authentication
Configures 802.1X client authentication, with an option for MAC address authentication
6-12
Filter Control
Filters communications between wireless clients, access to the management interface from wireless clients, and traffic matching specific
Ethernet protocol types
6-17
VLAN
Enables VLAN support and sets the management VLAN ID
6-19
WDS Settings
Configures bridge or repeater modes for each radio interface and sets
spanning tree paramete rs
6-21
AP Management
Configures access to management interfaces
6-27
Administration
Configures user name and password for management access; upgrades
software from local file, FTP or TFTP server; resets configuration settings to factory defaults; and resets the access point
6-28
System Log
Controls logging of error messages; sets the system clock via SNTP server or manual configuration
6-33
RSSI
Configures RSSI value display, bridge link distance, and LED display mode
6-37
SNMP
Configures SNMP settings
6-40
SNMP
Controls access to this access point from management stations using
SNMP, as well as the hosts that will receive trap messages
6-40
SNMP Trap Filters
Defines trap filters for SNMPv3 users
6-48
SNMP Targets
Specifies SNMPv3 users that will receive trap messages
6-50
Radio Interface A
Configures the IEEE 802.11a interface
6-52
Radio Settings
Configures common radio signal parameters and other settings for each
VAP interface
6-53
Security
Enables each virtual access point (VAP) interface, sets the Service Set Identifier (SSID), and configures wireless security
6-73
6-2
Advanced Configuration
6
Table 6-1.
Menu
Menu
Description
Page
Radio Interface G
Configures the IEEE 802.11g interface
6-52
Radio Settings
Configures common radio signal parameters and other settings for each
VAP interface
6-70
Security
Enables each VAP interface, sets the SSID, and configures wireless
security
6-73
Status
Displays information about the access point and wireless clients
6-90
AP Status
Displays configuration settings for the basic system and the wireless
interface
6-90
Station Station
Shows the wireless clients currently associated with the access point
6-93
Event Logs
Shows log messages stored in memory
6-95
System Identification
The system name for the access point can be left at its default setting. However, modifying
this parameter can help you to more easily distinguish different devices in
your
network.
System Name – An alias for the access point, enabling the device to be uniquely
identified
on
the network. (Default: Enterprise Wireless AP; Range: 1-32 characters)
6-3
6
System Configuration
CLI Commands for System Identification – Enter the global configuration mode, and use
the system name command to specify a new system name. Then return to the
Exec
mode, and use the show system command to display the changes to the
system
identification settings.
Enterprise AP#config
7-8
Enter configuration commands, one per line. Enterprise AP(config)#system name R&D
7-14
Enterprise AP(config)#end
7-88
Enterprise AP#show system
7-23
System Information ============================================================== Serial
Number
:
System Up time
: 0 days, 0 hours, 32 minutes, 22 seconds
System Name
: R&D
System
Location
:
System Contact
: Contact System Country Code : US - UNITED STATES MAC
Address
: 00-12-CF-12-34-60 Radio A MAC Address : 00-12-CF-12-34-61 Radio G MAC Address : 00-12-CF-12-34-65 IP Address
: 192.168.1.1 Subnet Mask
: 255.255.255.0 Default Gateway
: 0.0.0.0 VLAN State
: DISABLED Management
VLAN ID(AP): 1
IAPP State
: ENABLED DHCP
Client
: ENABLED HTTP
Server
: ENABLED HTTP
Server Port
: 80 HTTP Session Timeout : 300 sec(s) HTTPS Server
: ENABLED HTTPS
Server Port
: 443 Slot Status
: Dual band(a/g) Boot Rom Version
: v1.1.6 Software Version
: v4.3.3.1b05 SSH Server
: ENABLED SSH
Server Port
: 22 Telnet Server
: ENABLED DHCP
Relay
: DISABLED ==============================================================
Enterprise
AP#
6-4
Advanced Configuration
6
TCP / IP Settings
Configuring the access point with an IP address expands your ability to manage the access
point. A number of access point features depend on IP addressing to
operate.
Note:
You can use the web browser interface to access IP addressing only if the access point
already has an IP address that is reachable through your network.
By default, the access point will be automatically configured with IP settings from a Dynamic Host Configurati on Protocol (DHCP) server. However, if you are not using a DHCP server to configure IP addressing, use the CLI to manually configure the initial
IP
values (see page 5-2). After you have network access to the access point,
you
can use the web browser interface to modify the initial IP configuration, if
needed.
Note:
If
there is no DHCP server on your network, or DHCP fails, the access point will
automatically
start up with a default IP address of 192.168.1.1.
DHCP Client (Enable) – Select this option to obtain the IP settings for the access
point
from a DHCP (Dynamic Host Configuration Protocol) server. The IP address,
subnet
mask, default gateway, and Domain Name Server (DNS) address are
dynamically
assigned to the access point by the network DHCP server.
(Default: Enabled)
DHCP Client (Disable) – Select this option to manua lly configure a static address for
the
access point.
6-5
6
System Configuration
IP
Address: The IP address of the access point. Valid IP addresses consist of four
decimal
numbers, 0 to 255, separated by periods.
Subnet Mask: The mask that identifies the host address bits used for routing to specific
subnets.
Default Gateway: The default gateway is the IP address of the router for the access point,
which is used if the requested destination address is not on the local subnet.
If you have management stations, DNS, RADIUS, or other network servers located
on another subnet, type the IP address of the default gateway router in the text field provided. Otherwise, leave the address as all zeros (0.0.0.0).
Primary and Secondary DNS Address: The IP address of Domain Name Servers
on
the network. A DNS maps numerical IP addresses to domain names and can
be used to identify network hosts by familiar names instead of the IP addresses.
If you have one or more DNS servers located on the local network, type the IP
addresses in the text fields provided. Otherwise, leave the addresses as all zeros (0.0.0.0).
CLI Commands for TCP/IP Settings – From the global configuration mode, enter the interface
configuration mode with the interface ethernet command. Use the ip
dhcp command to enable the DHCP client, or no ip dhcp to disable it. To manually
configure an address, specify the new IP address, subnet mask, and default gateway using the ip address command. To specify DNS server addresses use the
dns server command. Then use the show interface ethernet command from the
Exec
mode to display the current IP settings.
Enterprise AP(config)#interface ethernet
7-88
Enter Ethernet configuration commands, one per line. Enterprise AP(if-ethernet)#no ip dhcp
7-90
Enterprise AP(if-ethernet)#ip address 192.168.1.2
255.255.255.0 192.168.1.253
7-89
Enterprise AP(if-ethernet)#dns primary-server 192.168.1.55
7-89
Enterprise AP(if-ethernet)#dns secondary-server 10.1.0.55
7-89
Enterprise AP(config)#end
7-8
Enterprise AP#show interface ethernet
7-92
Ethernet Interface Information ======================================== IP
Address
: 192.168.1.2
Subnet Mask
: 255.255.255.0
Default Gateway
: 192.168.1.253
Primary DNS
: 192.168.1.55
Secondary DNS
: 10.1.0.55
Admin status
: Up Operational status : Up ======================================== Enterprise
AP#
6-6
Advanced Configuration
6
RADIUS
Remote Authentication Dial-in User Service (RADIUS) is an authentication protocol that
uses software running on a central server to control access to RADIUS-aware
devices
on
the network. An authentication server contains a database of user
credentials
for each user that requires access to the network.
A primary RADIUS server must be specified for the access point to implement IEEE
802.1X network access control and Wi-Fi Protected Access (WPA) wireless security. A secondary RADIUS server may also be specified as a backup should the primary server
fail or become inaccessible.
In addition, the configured RADIUS server can also act as a RADIUS Accounting server
and receive user-sessi on accounting information from the access point.
RADIUS Accounting can be used to provide valuable information on user activity in
the network.
Note:
This guide assumes that you have already configured RADIUS server(s) to support the access point. Configuration of RADIUS server software is beyond the scope
of
this guide, refer to the documentation provided with the RADIUS server
software.
6-7
6
System Configuration
6-8
Advanced Configuration
6
MAC Address Format – MAC addresses can be specified in one of four formats,
using no delimeter, with a single dash delimeter, with multiple dash delimeters, and with
multiple colon delimeters.
VLAN ID Format – A VLAN ID (a number between 1 and 4094) can be assigned to
each
client after successful authentication using IEEE 802.1X and a central RADIUS
server.
The user VLAN IDs must be configured on the RADIUS server for each user
authorized
to
access the network. VLAN IDs can be entered as hexadecimal numbers
or as ASCII strings.
Primary RADIUS Server Setup – Configure the following settings to use RADIUS
authentication on the access point.
RADIUS Status: Enabling RADIUS Status allows the settings of RADIUS authentication. (Default: Enable)
IP
Address: Specifies the IP address or host name of the RADIUS server.
Port: The UDP port number used by the RADIUS server for authentication messages.
(Range: 1024-65535; Default: 1812)
Key: A shared text string used to encrypt messages between the access point and
the
RADIUS server. Be sure that the same text string is specified on the RADIUS
server.
Do
not use blank spaces in the string. (Maximum length: 255 characters)
Timeout: Number of seconds the access point waits for a reply from the RADIUS server before resending a request. (Range: 1-60 seconds; Default: 5)
Retransmit attempts: The number of times the access point tries to resend a request
to
the RADIUS server before authentication fails. (Range: 1-30; Default: 3)
Accounting Port: The RADIUS Accounting server UDP port used for accounting messages.
(Range: 0 or 1024-65535; Default: 0, disabled)
Interim Update Timeout: The interval between transmitting accounting updates to the
RADIUS server. (Range: 60-86400; Default: 3600 seconds)
Note:
For the Timeout and Retransmit attempts fields, accept the default values unless you
experience problems connecting to the RADIUS server over the network.
Secondary RADIUS Server Setup – Configure a secondary RADIUS server to
provide
a
backup in case the primary server fails. The access point uses the
secondary
server if the primary server fails or becomes inaccessible. Once the
access
point switches over to the secondary server, it periodically attempts to
establish
communication again with primary server. If communication with the
primary server is re-established, the secondary server reverts to a backup role.
6-9
6
System Configuration
CLI Commands for RADIUS – From the global configuration mode, use the
radius-server address command to specify the address of the primary or secondary
RADIUS servers. (The following example configures the settings for the primary RADIUS server.) Configure the other parameters for the RADIUS server. Then use the show radius command from the Exec mode to display the current settings for the primary and secondary RADIUS servers.
Enterprise AP(config)#radius-server address 192.168.1.25
7-59
Enterprise AP(config)#radius-server port 181
7-60
Enterprise AP(config)#radius-server key green
7-60
Enterprise AP(config)#radius-server timeout 10
7-61
Enterprise AP(config)#radius-server retransmit 5
7-61
Enterprise AP(config)#radius-server port-accounting 1813
7-62
Enterprise AP(config)#radius-server timeout-interim 500
7-62
Enterprise AP(config)#exit Enterprise AP#show radius
7-64
Radius Server Information ======================================== IP
: 192.168.1.25
Port
: 181
Key
: *****
Retransmit
: 5
Timeout
: 10 Radius MAC format : no-delimiter Radius VLAN format : HEX ========================================
Radius Secondary Server Information ======================================== IP
: 0.0.0.0 Port
: 1812 Key
: ***** Retransmit
: 3 Timeout
: 5 Radius MAC format : no-delimiter Radius VLAN format : HEX ======================================== Enterprise
AP#
6-10
Advanced Configuration
6
SSH Settings
Telnet is a remote management tool that can be used to configure the access point from
anywhere in the network. However, Telnet is not secure from hostile attacks.
The
Secure Shell (SSH) can act as a secure replacement for Telnet. The SSH
protocol
uses generated public keys to encrypt all data transfers passing between the access point and SSH-enabled management station clients and ensures that data traveling over the network arrives unaltered. Clients can then securely use the local
user name and password for access authentication.
Note that SSH client software needs to be installed on the management station to access
the access point for management via the SSH protocol.
Notes:
1.
The access point supports only SSH version 2.0.
2.
After boot up, the SSH server needs about two minutes to generate host encryption
keys. The SSH server is disabled while the keys are being
generated.
SSH Settings
Telnet Server Status – Enables or disables the Telnet server. (Default: Enabled) SSH Server Status – Enables or disables the SSH server. (Default: Enabled) SSH Server Port – Sets the UDP port for the SSH server. (Range: 1-65535;
Default:
22)
6-11
6
System Configuration
CLI Commands for SSH – To enable the SSH server, use the ip ssh-server enable command from the CLI Ethernet interface configuration mode. To set the SSH server UDP port, use the ip ssh-server port command. To view the current settings, use
the show system command from the CLI Exec mode (not shown in the
following example).
Enterprise AP(if-ethernet)#no ip telnet-server
7-17
Enterprise AP(if-ethernet)#ip ssh-server enable
7-16
Enterprise AP(if-ethernet)#ip ssh-server port 1124
7-16
Enterprise AP(if-ethernet)#exit Enterprise AP(config)#
Authentication
Wireless clients can be authenticated for network access by checking their MAC address
against the local database configured on the access point, or by using a
database
configured on a central RADIUS server. Alternatively , authentication can
be
impleme nted using the IEEE 802.1X network access control protocol.
A client’s MAC address provides relatively weak user authentication, since MAC addresses
can be easily captured and used by another station to break into the
network.
Using 802.1X provides more robust user authentication using user names
and
passwords or digital certificates. You can configure the access point to use both
MAC
address and 802.1X authentication, with client station MAC authentication
occurring
prior to IEEE 802.1X authentication. However, it is better to choose one or
the
other, as approp riate.
Take note of the following points before configuring MAC address or 802.1X authentication:
Use MAC address authentication for a small network with a limited number of users.
MAC addresses can be manually configured on the access point itself
without
the need to set up a RADIUS server, but managing a large number of MAC
addresses
across many access points is very cumbersome. A RADIUS server can
be
used to centrally manage a larger database of user MAC addresses.
Use IEEE 802.1X authentication for networks with a larger number of users and
where
security is the most important issue. When using 802.1X authentication, a
RADIUS
server is required in the wired network to centrally manage the credentials
of
the wireless clients. It also provides a mechanism for enhanced network security
using dynamic encryption key rotation or W-Fi Protected Access (WPA).
Note:
If
you configure RADIUS MAC authentication together with 802.1X, RADIUS MAC
address
authentication is performed prior to 802.1X authentication. If RADIUS MAC authentication succeeds, then 802.1X authentication is performed. If RADIUS MAC authentication fails, 802.1X authentication is not performed.
The access point can also operate in a 802.1X supplicant mode. This enables the access
point itself to be authenticated with a RADIUS server using a configured
MD5
user name and password. This prevents rogue access points from gaining
access
to
the network.
6-12
Advanced Configuration
6
MAC Authentication – You can configure a list of the MAC addresses for wireless
clients that are authorized to access the network. This provides a basic level of authentication
for wireless clients attempting to gain access to the network. A
database
of
authorized MAC addresses can be stored locally on the access point or
remotely
on a
central RADIUS server.
(Default: Disabled)
Disabled: No checks are performed on an associating station’s MAC address.
Local MAC: The MAC address of the associating station is compared against the local
database stored on the access point. Use the Local MAC Authentication
section of this web page to set up the local database, and configure all access points
in
the wireless network service area with the same MAC address database.
Radius MAC: The MAC address of the associating station is sent to a configured RADIUS
server for authentication. When using a RADIUS authentication server for
MAC
address authentication, the server must first be configured in the RADIUS
window
(see “RADIUS” on page 6-7). The database of MAC addresses and
filtering policy must be defined in the RADIUS server.
Note:
MAC addresses on the RADIUS server can be entered in four different formats (see “RADIUS” on page 6-7).
6-13
6
System Configuration
802.1X Supplicant – The access point can also operate in a 802.1X supplicant
mode. This enables the access point itself to be authenticated with a RADIUS server using
a
configured MD5 user name and password. This prevents rogue access
points from gaining access to the network.
Local MAC Authentication – Configures the local MAC authentication database. The
MAC
database provides a mechanism to take certain actions based on a wireless
client’s
MAC address. The MAC list can be configured to allow or deny network
access
to
specific clients.
System Default: Specifies a default action for all unknown MAC addresses (that is, those
not listed in the local MAC database).
Deny: Blocks access for all MAC addresses except those listed in the local
database as “Allow.”
Allow: Permits access for all MAC addresses except those listed in the local database
as
“Deny.”
MAC Authentication Settings: Enters specified MAC addresses and permissions into
the local MAC database.
MAC Address: Physical address of a client. Enter six pairs of hexadecimal digits separated
by
hyphens; for example, 00-90-D1-12-AB-89.
Permission: Select Allow to permit access or Deny to block access. If Delete is selected,
the specified MAC address entry is removed from the database.
Update: Enters the specified MAC address and permission setting into the local database.
MAC Authentication Table: Displays current entries in the local MAC database.
6-14
Advanced Configuration
6
CLI Commands for Local MAC Authentication – Use the mac-auth entication
server command from the global configuration mode to enable local MAC
authentication.
Use the mac-authentication session-timeout command to set the
authentication
interval to enable web-based authentication for service billing. Set
the default action for MAC addresses not in the local table using the address filter
default command, then enter MAC addresses in the local table using the address filter
entry command. To remove an entry from the table, use the address filter
delete
command. To display the current settings, use the show authentication
command from the Exec mode.
Enterprise AP(config)#mac-authentication server local
7-71
Enterprise AP(config)#mac-authentication session-timeout 5
7-71
7-20
Enterprise AP(config)#address filter default denied
7-69
Enterprise AP(config)#address filter entry
00-70-50-cc-99-1a denied
7-70
Enterprise AP(config)#address filter entry
00-70-50-cc-99-1b allowed
Enterprise AP(config)#address filter entry
00-70-50-cc-99-1c allowed
Enterprise AP(config)#address filter delete
00-70-50-cc-99-1c
7-70
Enterprise AP(config)#exit Enterprise AP#show authentication
7-67
Authentication Information =========================================================== MAC
Authentication Server
: LOCAL
MAC Auth Session Timeout Value : 0 min
802.1x supplicant
: DISABLED
802.1x supplicant user
: EMPTY
802.1x supplicant password
: EMPTY
Address
Filtering
: DENIED
System Default : ALLOW addresses not found in filter table. Filter
Table
MAC Address
Status
-----------------
----------
00-70-50-cc-99-1a
DENIED
00-70-50-cc-99-1b
ALLOWED ========================================================= Enterprise
AP#
6-15
6
System Configuration
CLI Commands for RADIUS MAC Authentication – Use the mac-authen tication
server
command from the global configuration mode to enable remote MAC
authentication.
Set the timeout value for re-authentication using the mac-
authentication
session-timeout command. Be sure to also configure connection
settings
for the RADIUS server (not shown in the following example). To display the
current
settings, use the show authentication command from the Exec mode.
Enterprise AP(config)#mac-authentication server remote
7-71
Enterprise AP(config)#mac-authentication
session-timeout 300
7-71
Enterprise AP(config)#exit Enterprise AP#show authentication
7-67
Authentication Information =========================================================== MAC
Authentication Server
: REMOTE
MAC Auth Session Timeout Value : 300 min
802.1x supplicant
: DISABLED
802.1x supplicant user
: EMPTY
802.1x supplicant password
: EMPTY
Address
Filtering
: DENIED
System Default : DENY addresses not found in filter table. Filter
Table
MAC Address
Status
-----------------
----------
00-70-50-cc-99-1a
DENIED
00-70-50-cc-99-1b
ALLOWED ========================================================= Enterprise
AP#
CLI Command for 802.1x Supplicant – To configure the access point to operate as a
802.1X supplicant, first use the 802.1X supplicant user command to set a user name and password for the access point, then use the 802.1X supplicant command to enable the feature. To display the current settings, use the show authentication command from the Exec mode (not shown in the following example)
Enterprise AP(config)#802.1X supplicant user secureAP dot1xpass
7-67
Enterprise AP(config)#802.1X supplicant
7-66
Enterprise AP(config)#
6-16
Advanced Configuration
6
Filter Control
The access point can employ network traffic frame filtering to control access to network
resources and increase security. You can prevent communications between
wireless
clients and prevent access point management from wireless clients. Also,
you
can block specific Ethernet traffic from being forwarded by the access point.
Inter Client STAs Communication Filter – Sets the global mode for
wireless-to-wireless communications between clients associated to Virtual AP (VAP) interfaces on the access point. (Default: Disabled)
Disabled: All clients can communicate with each other through the access point.
Prevent Intra VAP client communication: When enabled, clients associated with a
specific
VAP interface cannot establish wireless communications with each other.
Clients
can communicate with clients associated to other VAP interfaces.
Prevent Inter and Intra VAP client communication: When enabled, clients cannot
establish
wireless communications with any other client, either those associated to
the
same VAP interface or any other VAP interface.
AP Management Filter – Controls management access to the access point from
wireless
clients. Manag ement interfaces include the web, Telnet, or SNMP.
(Default: Enabled)
Disabled: Allows management access from wireless clients.
Enabled: Blocks manag ement access from wireless clients.
6-17
6
System Configuration
Uplink Port MAC Address Filtering Status – Prevents traffic with specified source
MAC
addresses from being forwarded to wireless clients through the access point.
You
can add a maximum of four MAC addresses to the filter table. (Default:
Disabled)
MAC Address: Specvifies a MAC address to filter, in the form xx-xx-xx-xx-xx-xx.
Permission: Adds or deletes a MAC address from the filtering table.
Ethernet Type Filter – Controls checks on the Ethernet type of all incoming and
outgoing
Ethernet packets against the protocol filtering table. (Default: Disabled)
Disabled: Access point does not filter Ethernet protocol types.
Enabled: Access point filters Ethernet protocol types based on the configuration of
protocol types in the filter table. If the status of a protocol is set to “ON,” the protocol
is filtered from the access point.
Note:
Ethernet protocol types not listed in the filtering table are always forwarded by the access
point.
Ethernet Type Filter – Enables or disables Ethernet filtering on the port. (Default:
Disabled) CLI Commands for Bridge Filtering – Use the filter local-bridge command from the
global
configuration mode to prevent wireless-to-wireless communications through
the
access point. Use the filter ap-manage command to restrict management
access from wireless clients. To configure Ethernet protocol filtering, use the filter
ethernet-type
enable command to enable filtering and the filter ethernet-type
protocol
command to define the protocols that you want to filter. To remove an entry
from
the table, use the address filter delete command. To display the current
settings,
use the show filters command from the Exec mode.
Enterprise AP(config)#filter local-bridge
7-73
Enterprise AP(config)#filter ap-manage
7-73
Enterprise AP(config)#filter uplink enable
7-74
Enterprise AP(config)#filter uplink add 00-12-34-56-78-9a
7-74
Enterprise AP(config)#filter ethernet-type enable
7-74
Enterprise AP(config)#filter ethernet-type protocol ARP
7-75
Enterprise AP(config)#exit Enterprise AP#show filters
7-76
Protocol Filter Information ========================================================= Local
Bridge
:ENABLED
AP Management
:ENABLED
Ethernet
Type Filter :ENABLED
Enabled Protocol Filters
--------------------------------------------------------­Protocol:
ARP
ISO: 0x0806 ========================================================= Enterprise
AP#
6-18
Advanced Configuration
6
VLAN
The access point can employ VLAN tagging support to control access to network resources
and increase security. VLANs separate traffic passing between the
access
point, associated clients, and the wired network. There can be a VLAN
assigned
to
each associated client, a default VLAN for each VAP (Virtual Access
Point)
interface, and a management VLAN for the access point.
Note the following points about the access point’s VLAN support:
The management VLAN is for managing the access point through remote management
tools, such as the web interface, SSH, SNMP, or Telnet. The access
point
only accepts management traffic that is tagged with the specified
management
VLAN ID.
All wireless clients associated to the access point are assigned to a VLAN. If IEEE
802.1X is being used to authenticate wireless clients, specific VLAN IDs can be configured
on
the RADIUS server to be assigned to each client. If a client is not
assigned
to a
specific VLAN or if 802.1X is not used, the client is assigned to the
default
VLAN for the VAP interface with which it is associated. The access point
only
allows traffic tagged with assigned VLAN IDs or default VLAN IDs to access
clients
associated on each VAP interface.
When VLAN support is enabled on the access point, traffic passed to the wired
network
is
tagged with the appropriate VLAN ID, either an assigned client VLAN
ID,
default VLAN ID, or the management VLAN ID. Traffic received from the wired
network
must also be tagged with one of these known VLAN IDs. Received traffic
that
has an unknown VLAN ID or no VLAN tag is dropped.
When VLAN support is disabled, the access point does not tag traffic passed to the wired
network and ignores the VLAN tags on any received frames.
Note:
Before enabling VLAN tagging on the access point, be sure to configure the attached
network switch port to support tagged VLAN frames from the access
point’s
management VLAN ID, default VLAN IDs, and other client VLAN IDs.
Otherwise,
connectivity to the access point will be lost when you enable the VLAN
feature.
Using IEEE 802.1X and a central RADIUS server, up to 64 VLAN IDs can be mapped to specific wireless clients, allowing users to remain within the same VLAN as
they move around a campus site. This feature can also be used to control access
to
network resources from clients, thereby improving security.
A VLAN ID (1-4094) can be assigned to a client after successful IEEE 802.1X authentica tion.
The client VLAN IDs must be configured on the RADIUS server for
each
user authorized to access the network. If a client does not have a configured
VLAN
ID on
the RADIUS server, the access point assigns the client to the
configured
default VLAN ID for the VAP interface.
Note:
When using IEEE 802.1X to dynamically assign VLAN IDs, the access point must have
802.1X authentication enabled and a RADIUS server configured. Wireless
clients
must also support 802.1X client software.
6-19
6
System Configuration
When setting up VLAN IDs for each user on the RADIUS server, be sure to use the RADIUS attributes and values as indicated in the following table.
Number
RADIUS Attribute
Value
64
Tunnel-Type
VLAN (13)
65
Tunnel-Medium-Type
802
81
Tunnel-Private-Group-ID
VLANID (1 to 4094 as hexadecimal or string)
VLAN IDs on the RADIUS server can be entered as hexadecimal digits or a string (see “radius-server vlan-format” on page 7-63).
Note:
The specific configuration of RADIUS server software is beyond the scope of this guide.
Refer to the documentation provided with the RADIUS server software.
VLAN Classification – Enables or disables VLAN tagging support on the access
point.
Native VLAN ID – The VLAN ID that traffic must have to be able to manage the
access
point. (Range 1-4094; Default: 1)
6-20
Advanced Configuration
6
WDS Settings
Each access point radio interface can be configured to operate in a bridge or repeater
mode, which allows it to forward traffic directly to other access point units.
To
set up bridge links between access point units, you must configure the wireless Distribution System (WDS) forwarding table by specifying the wireless MAC address of all units to which you want to forward traffic. Up to six WDS bridge or repeater links can be specified for each unit in the wireless bridge network.
The Spanning Tree Protocol (STP) can be used to detect and disable network loops, and
to
provide backup links between bridges. This allows a wireless bridge to interact with other bridging devices (that is, an STP-compliant switch, bridge or router) in your network to ensure that only one route exists between any two stations
on the network, and provide backup links which automatically take over when a
primary link goes down.
WDS Bridge – Up to six WDS bridge or repeater links (MAC addresses) per radio
interface
can be specified for each unit in the wireless bridge network. One unit only
must
be
configured as the “root bridge” in the wireless network. The root bridge is
the unit connected to the main core of the wired LAN. Other bridges need to specify one “Parent” link to the root bridge or to a bridge connected to the root bridge. The other
five WDS links are available as “Child” links to other bridges.
Bridge Role – Each radio interface can be set to operate in one of the following four
modes:
(Default: AP)
AP
(Access Point): Operates as an access point for wireless clients, providing
connectivity
to a
wired LAN.
6-21
6
System Configuration
Bridge: Operates as a bridge to other access points. The “Paren t” link to the root
bridge
must be configured. Up to five other ”Child” links are available to other
bridges.
Repeater: Operates as a wireless repeater, extendin g the range for remote wireless
clients and connecting them to the root bridge. The “Parent” link to the
root
bridge must be configured. In this mode, traffic is not forwarded to the
Ethernet
port from the radio interface.
Root Bridge: Operates as the root bridge in the wireless bridge network. Up to six
”Child” links are available to other bridges in the network.
Master/Slave Mode – Selects between Master and Slave mode. A single master
enables
up to
five slave links, whereas a slave will have only one link to the master.
Bridge Parent – The physical layer address of the root bridge unit or the bridge unit
connected
to
the root bridge. (12 hexadecimal digits in the form
“xx-xx-xx-xx-xx-xx”)
Channel Auto Sync – Allows a Bridge Child to automatically find the operating
channel
used by its Bridge Parent.
Caution:Do
not enable Channel Auto Sync on a master bridge if there is no root bridge
acting
as
the master bridge's parent.
Bridge Child – The physical layer address of other bridge units for which this unit
serves
as
the bridge parent or the root bridge. Note that the first entry under the list
of
child nodes is reserved for the root bridge, and can only be configured if the role
is set to “Root Bridge.” (12 hexadecimal digits in the form “xx-xx-xx-xx-xx-xx”)
6-22
Advanced Configuration
6
Spanning Tree Protocol – STP uses a distributed algorithm to select a bridging
device (STP-compliant switch, bridge or router) that serves as the root of the spanning
tree network. It selects a root port on each bridging device (except for the
root
device) which incurs the lowest path cost when forwarding a packet from that
device
to
the root device. Then it selects a designated bridging device from each LAN
which incurs the lowest path cost when forwarding a packet from that LAN to
6-23
6
System Configuration
the root device. All ports connected to designated bridging devices are assigned as designated
ports. After determining the lowest cost spanning tree, it enables all root
ports
and designated ports, and disables all other ports. Network packets are
therefore
only forwarded between root ports and designated ports, eliminating any
possible
network loops.
Once a stable network topology has been established, all bridges listen for Hello BPDUs
(Bridge Protocol Data Units) transmitted from the root bridge. If a bridge
does
not get a Hello BPDU after a predefined interval (Maximum Age), the bridge
assumes
that the link to the root bridge is down. This bridge will then initiate
negotiations
with other bridges to reconfigure the network to reestablish a valid
network
topology.
Bridge – Enables/disables STP on the wireless bridge or repeater.
(Default: Disabled)
Bridge Priority – Used in selecting the root device, root port, and designated port.
The
device with the highest priority becomes the STP root device. However, if all
devices
have the same priority, the device with the lowest MAC address will then
become
the root device. (Note that lower numeric values indicate higher priority.)
Range: 0-65535
Default: 32768
Bridge Max Age – The maximum time (in seconds) a device can wait without
receiving
a
configuration message before attempting to reconfigure. All device
ports
(except for designated ports) should receive configuration messages at
regular
intervals. Any port that ages out STP information (provided in the last
configuration
message) becomes the designated port for the attached LAN. If it is a root port, a new root port is selected from among the device ports attached to the network.
(Range: 6-40 seconds)
Default: 20
Minimum: The higher of 6 or [2 x (Hello Time + 1)].
Maximum: The lower of 40 or [2 x (Forward Delay - 1)]
Bridge Hello Time – Interval (in seconds) at which the root device transmits a
configuration
message. (Range: 1-10 seconds)
Default: 2
Minimum: 1
Maximum: The lower of 10 or [(Max. Message Age / 2) -1]
Bridge Forwarding Delay – The maximum time (in seconds) this device waits
before
changing states (i.e., discarding to learning to forwarding). This delay is
required
because every device must receive information about topology changes
before
it
starts to forward frames. In addition, each port needs time to listen for
conflicting
information that would make it return to a discarding state; otherwise,
temporary
data loops might result. (Range: 4-30 seconds)
Default: 15
Minimum: The higher of 4 or [(Max. Message Age / 2) + 1]
Maximum: 30
6-24
Advanced Configuration
6
Link Path Cost – This parameter is used by the STP to determine the best path
between devices. Therefore, lower values should be assigned to ports attached to faster
media, and higher values assigned to ports with slower media. (Path cost
takes
precedence over port priority.)
Range: 1-65535
Default: Ethernet interface: 19; Wireless interface: 40
Link Port Priority – Defines the priority used for this port in the Spanning Tree
Protocol.
If
the path cost for all ports on a switch are the same, the port with the
highest
priority (i.e., lowest value) will be configured as an active link in the
spanning
tree. This makes a port with higher priority less likely to be blocked if the
Spanning
Tree Protocol is detecting network loops. Where more than one port is
assigned the highest priority, the port with lowest numeric identifier will be enabled.
Default: 128
Range: 0-240, in steps of 16
CLI Commands for WDS Settings – To set the role of the access point radio interface,
use the bridge role command from the CLI wireless interface configuration mode. If the role of the radio interface is set to “Bridge” or “Repeater,” the
MAC address of the parent node must also be configured using the bridge-link
parent
command. If the role is set to anything other than “Access Point,” then you
should
also configure the MAC addresses of the child nodes using the bridge-link
child
command. To view the current bridge link settings, use the show bridge link
command.
Enterprise AP(if-wireless a)#bridge role bridge
7-77
Enterprise AP(if-wireless a)#bridge channel-auto-sync enable
7-78
Enterprise AP(if-wireless a)#bridge-link child 2
00-08-3e-84-bc-6d
7-79
Enterprise AP(if-wireless a)#bridge-link child 3
00-08-3e-85-13-f2
Enterprise AP(if-wireless a)#bridge-link child 4
00-08-3e-84-79-31
Enterprise AP(if-wireless a)#bridge-link parent
00-08-2d-69-3a-51
7-78
Enterprise AP(if-wireless a)#exit Enterprise AP#show bridge link wireless a
7-81
Interface Wireless A WDS Information ==================================== AP
Role: Bridge Channel Auto Sync: Enable Parent:
00-08-2d-69-3a-51
Child:
STAs:
Child 2:
00-08-3e-84-bc-6d
Child 3:
00-08-3e-85-13-f2
Child 4:
00-08-3e-84-79-31
Child 5:
00-00-00-00-00-00
Child 6:
00-00-00-00-00-00
No WDS Stations.
Enterprise AP#
6-25
6
System Configuration
CLI Commands for STP Settings – If the role of a radio interface is set to Repeater, Bridge
or
Root Bridge, STP can be enabled on the access point to maintain a valid
network
topology. To globally enable STP, use the bridge stp enable command from the CLI configuration mode. Then configure the other global STP parameters for
the bridge. The path cost and priority for each bridge link can be set using the
bridge-link path-cost and bridge-link port-priority command from the Wireless
Interface
configuration mode. The path cost and priority can also be set for the
Ethernet
port from the Ethernet Interface configuration mode. To view the current
STP
settings, use the show bridge stp command.
Enterprise AP(config)#bridge stp enable
6-104
Enterprise AP(config)#bridge stp forwarding-delay 2500
6-105
Enterprise AP(config)#bridge stp hello-time 500
6-106
Enterprise AP(config)#bridge stp max-age 4000
6-107
Enterprise AP(config)#bridge stp priority 40000
6-108
Enterprise AP(config)#interface wireless a Enterprise AP(if-wireless a)#bridge-link path-cost 2 40
6-109
Enterprise AP(if-wireless a)#bridge-link port-priority 2 64
6-110
Enterprise AP(if-wireless a)#exit Enterprise AP#show bridge stp
6-111
Bridge MAC
: 00:30:F1:F0:9A:9C
Status
: Disabled
priority
: 40000
desiginated-root
: priority = 0, MAC = 00:00:00:00:00:00
root-path-cost
: 0
root-Port-no
: 0
Hold Time
: 0 Seconds
Hello
Time
: 0 Seconds
Maximum
Age
: 0 Seconds
Forward
Delay
: 2500 Seconds
bridge
Hello Time
: 500 Seconds
bridge
Maximum Age : 4000 Seconds
bridge
Forward Delay : 5 Seconds
time-since-top-change:
3168 Seconds
topology-change-count:
0
Enterprise AP#
6-26
Advanced Configuration
6
AP Management
The Web, Telnet, and SNMP management interfaces are enabled and open to all IP addresses by default. To provide more security for management access to the access
point, specific interfaces can be disabled and management restricted to a
single
IP
address or a limited range of IP addresses.
Once you specify an IP address or range of addresses, access to management interfaces
is
restricted to the specified addresses. If anyone tries to access a
management
interface from an unauthorized address, the access point will reject the
connection.
UI Management – Enables or disables management access through Telnet, the Web
(HTTP), or SNMP interfaces. (Default: Enabled)
Note:
Secure Web (HTTPS) connections are not affected by the UI Management or IP Management
settings.
IP Mana gement – Restricts management access to Telnet, Web, and SNMP
interfaces to specified IP addres ses. (Default: Any IP)
Any IP: Indicates that any IP address is allowed management access.
Single IP: Specifies a single IP address that is allowed manag ement access.
6-27
6
System Configuration
Multiple IP: Specifies an address range as defined by the entered IP address and subnet
mask. For example, IP address 192.168.1.6 and subnet mask
255.255.255.0, defines all IP addresses from 192.168.1.6 to 192.168.1.254.
CLI Commands for AP Management features.
Enterprise AP(config)#apmgmtip multiple 192.168.1.6 255.255.255.0
7-21
Enterprise AP(config)#apmgmtui SNMP enable
7-22
Administration
Changing the Password
Management access to the web and CLI interface on the access point is controlled through
a
single user name and password. You can also gain additional access
security
by
using control filters (see “Filter Control” on page 6-17).
To protect access to the management interface, you need to configure an Administrator’s
user name and password as soon as possible. If the user name and
password
are not configured, then anyone having access to the access point may be able to compromise access point and network security. Once a new Administrator has been configured, you can delete the default “admin” user name from the system.
Username – The name of the user. The default name is “admin.” (Length: 3-16
characters, case sensitive)
New Password – The password for management access. (Length: 3-16 characters,
case
sensitive)
Confirm New Password – Enter the password again for verification.
CLI Commands for the Administrator’s User Name and Password – Use the
username and password commands from the CLI configuration mode.
Enterprise AP(config)#username bob
7-15
Enterprise AP(config)#password admin
7-15
Enterprise AP#
6-28
Advanced Configuration
6
Setting the Timeout Interval
You can set the timeout interval for web access to the unit, after which the user will have
to
re-enter the username and password.
Session Timeout for WEB – Sets the time limit for an idle web interface session. (Range: 0-1800 seconds; Default: 300 seconds; 0 is disabled)
CLI Command for the Web Session Timeout – Use the ip http session-timeout
command from the CLI configuration mode.
Enterprise AP(config)#ip http session-timeout 0
7-18
Enterprise AP(config)#
Upgrading Firmware
You can upgrade new access point software from a local file on the management workstation,
or
from an FTP or TFTP server. New software may be provided
periodically
from your distributor.
After upgrading new software, you must reboot the access point to implement the new code. Until a reboot occurs, the access point will continue to run the software it was using before the upgrade started. Also note that new software that is incompatible with the current configuration automatically restores the access point to the factory default settings when first activated after a reboot.
6-29
6
System Configuration
Before upgrading new software, verify that the access point is connected to the network and has been configured with a compatible IP address and subnet mask.
If you need to download from an FTP or TFTP server, take the following additional steps:
Obtain the IP address of the FTP or TFTP server where the access point software
is stored.
If
upgrad ing from an FTP server, be sure that you have an account configured on
the
server with a user name and password.
If
VLANs are configured on the access point, determine the VLAN ID with which the FTP or TFTP server is associated, and then configure the management station, or the network port to which it is attached, with the same VLAN ID. If you are managing
the access point from a wireless client, the VLAN ID for the wireless
client
must be configured on a RADIUS server.
Current version – Version number of runtime code.
6-30
Advanced Configuration
6
Firmware Upgrade Local – Downloads an operation code image file from the web
management station to the access point using HTTP. Use the Browse button to locate
the image file locally on the management station and click Start Upgrade to
proceed.
New firmware file: Specifies the name of the code file on the server. The new firmware
file name should not contain slashes (\ or /), the leading letter of the file
name
should not be a period (.), and the maximum length for file names is 32
characters
for files on the access point. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)
Firmware Upgrade Remote – Downlo ads an operation code image file from a
specified
remote FTP or TFTP server. After filling in the following fields, click Start
Upgrade
to
proceed.
New firmware file: Specifies the name of the code file on the server.
The new
firmware
file name should not contain slashes (\ or /), the leading letter of the file
name
should not be a period (.), and the maximum length for file names on the
FTP/TFTP
server is 255 characters or 32 characters for files on the access point.
(Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)
IP
Address: IP address or host name of FTP or TFTP server.
Username: The user ID used for login on an FTP server.
Password: The password used for login on an FTP server.
Configuration File Backup/Restore – Uploads the current access point configuration
file
to a
specified remote FTP or TFTP server. A configuration file can also be
downloaded
to
the access point to restore a specific configuration.
Export/Import: Select Export to upload a file to an FTP/TFTP server. Select Import to download a file from an FTP/TFTP server.
Config file: Specifies the name of the configuration file, which must always be "syscfg." A path on the server can be specified using “/” in the name, providing the path
already exists; for example, “myfolder/syscfg.” Other than to indicate a path,
the
file name must not contain any slashes (\ or /), the leading letter cannot be a
period
(.), and the maximum length for file names on the FTP/TFTP server is 255
characters.
(Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)
IP
Address: IP address or host name of FTP or TFTP server.
Username: The user ID used for login on an FTP server.
Password: The password used for login on an FTP server.
Restore Factory Settings – Click the Restore button to reset the configuration
settings for the access point to the factory defaults and reboot the system. Note that all
user configured information will be lost. You will have to re-enter the default user
name
(admin) to re-gain manag ement access to this device.
Reboot Access Point – Click the Reset button to reboot the system.
Note:
If
you have upgraded system software, then you must reboot the access point to
implement
the new operation code. New software that is incompatible with the
current
configuration automatically restores the access point to default values
when
first activated after a reboot.
6-31
6
System Configuration
Upon uploading a new configuration file you will be prompted to either restore factory
settings, or reboot the unit.
CLI Commands for Downloading Software from a TFTP Server – Use the copy tftp
file
command from the Exec mode and then specify the file type, name, and IP
address of the TFTP server. When the download is complete, the dir command can
be used to check that the new file is present in the access point file system. To run the new software, use the reset board command to reboot the access point.
Enterprise AP#copy tftp file
7-56
1. Application image
2. Config file
3. Boot block image Select the type of download<1,2,3>: [1]:1 TFTP Source file name:img.bin TFTP Server IP:192.168.1.19
Enterprise AP#dir
7-58
File Name
T
ype
F
ileSize
----------------------
-
----
-------
-
-
-----
dflt-img.bin
2
131
9
939
img.bin
2
162
9
577
syscfg
517
776
syscfgbak
517
776
262144 byte(s) available
Enterprise AP#reset board
7-10
Reboot system now? <y/n>: y
6-32
Advanced Configuration
6
System Log
The access point can be configured to send event and error messages to a System Log Server. The system clock can also be synchronized with a time server, so that all
the messages sent to the Syslog server are stamped with the correct time and
date.
Enabling System Logging
The access point supports a logging process that can control error messages saved to
memory or sent to a Syslog server. The logged messages serve as a valuable tool
for
isolating access point and network problems.
System Log Setup – Enable s the logging of error messages. (Default: Disable) Server (1-4) – Enables the sending of log messages to a Syslog server host. Up to
four
Syslog servers are supported on the access point. (Default: Disable)
Server Name/IP – The IP address or name of a Syslog server. (Default: 0.0.0.0) UDP Port – The UDP port used by a Syslog server. (Range: 514 or 11024-65535;
Default:
514)
Logging Console – Enables the logging of error messages to the console.
(Default: Disable)
6-33
6
System Configuration
Logging Level – Sets the minimum severity level for event logging.
(Default: Informational) The system allows you to limit the messages that are logged by specifying a
minimum
severity level. The following table lists the error message levels from the
most
severe (Emergency) to least severe (Debug). The message levels that are
logged
include the specified minimum level up to the Emergency level.
Error Level
Description
Emergency
System unusable
Alerts
Immediate action needed
Critical
Critical conditions (e.g., memory allocation, or free memory error - resource exhausted)
Error
Error conditions (e.g., invalid input, default used)
Warning
Warning conditions (e.g., return false, unexpected return)
Notice
Normal but significant condition, such as cold start
Informational
Informational messages only
Debug
Debugging messages
Note:
The access point error log can be viewed using the Event Logs window in the Status
section (page 6-95). The Event Logs window displays the last 128
messages
logged in chronological order, from the newest to the oldest. Log
messages
saved in the access point’s memory are erased when the device is
rebooted.
Logging Facility Type – Sets the facility type for remote logging of syslog messages.
The
command specifies the facility type tag sent in syslog messages. (See RFC
3164.) This type has no effect on the kind of messages reported by the switch. However, it may be used by the syslog server to sort messages or to store messages
in
the corresponding database. (Range: 16-23; Default: 16)
6-34
Advanced Configuration
6
CLI Commands for System Logging – To enable logging on the access point, use the logging on command from the global configuration mode. The logging level command sets the minimum level of message to log. Use the logging console command to enable logging to the console. Use the logging host command to specify
up to
four Syslog servers. The CLI also allows the logging facility-type command to set the facility-type number to use on the Syslog server. To view the current
logging settings, use the show logging command.
Enterprise AP(config)#logging on
7-29
Enterprise AP(config)#logging level alert
7-30
Enterprise AP(config)#logging console
7-30
Enterprise AP(config)#logging host 1 IP 10.1.0.3 514
7-29
Enterprise AP(config)#logging host 1 Port 514
7-29
Enterprise AP(config)#logging facility-type 19
7-31
Enterprise AP(config)#exit Enterprise AP#show logging
7-32
Logging Information ============================================ Syslog
State
: Enabled
Logging Console State
: Enabled
Logging Level
: Alert
Logging Facility Type
: 19
Servers
1: 10.1.0.3, UDP Port: 514, State: Enabled 2: 0.0.0.0, UDP Port: 514, State: Disabled 3: 0.0.0.0, UDP Port: 514, State: Disabled 4: 0.0.0.0, UDP Port: 514, State: Disabled
=============================================
Enterprise
AP#
Configuring SNTP
Simple Network Time Protocol (SNTP) allows the access point to set its internal clock based on periodic updates from a time server (SNTP or NTP). Maintaining an accurate
time on the access point enables the system log to record meaningful dates and times for event entries. If the clock is not set, the access point will only record the time from the factory default set at the last bootup.
The access point acts as an SNTP client, periodically sending time synchronization requests
to
specific time servers. You can configure up to two time server IP
addresses.
The access point will attempt to poll each server in the configured
sequence.
SNTP Server – Configures the access point to operate as an SNTP client. When
enabled,
at
least one time server IP address must be specified.
Primary Server: The IP address of an SNTP or NTP time server that the access point
attempts to poll for a time update.
Secondary Server: The IP address of a secondary SNTP or NTP time server. The
access
point first attempts to update the time from the primary server; if this fails it
attempts
an
update from the secondary server.
6-35
6
System Configuration
Note:
The access point also allows you to disable SNTP and set the system clock manually.
Set Time Zone – SNTP uses Coordinated Universal Time (or UTC, formerly
Greenwich
Mean Time, or GMT) based on the time at the Earth’s prime meridian,
zero
degrees longitude. To display a time corresponding to your local time, you must
indicate
the number of hours your time zone is located before (east) or after (west)
UTC.
Enable Daylight Saving – The access point provides a way to automatically adjust
the
system clock for Daylight Savings Time changes. To use this feature you must
define
the month and date to begin and to end the change from standard time.
During
this period the system clock is set back by one hour.
CLI Commands for SNTP – To enable SNTP support on the access point, from the global
configuration mode specify SNTP server IP addresses using the sntp-server
ip
command, then use the sntp-server enable command to enable the service. Use
the
sntp-server timezone command to set the time zone for your location, and the
sntp-server daylight-saving command to set daylight savings. To view the current
SNTP
settings, use the show sntp command.
Enterprise AP(config)#sntp-server ip 1 10.1.0.19
7-34
Enterprise AP(config)#sntp-server enable
7-34
Enterprise AP(config)#sntp-server timezone +8
7-36
Enterprise AP(config)#sntp-server daylight-saving
7-36
Enter Daylight saving from which month<1-12>: 3 and which day<1-31>: 31 Enter Daylight saving end to which month<1-12>: 10 and which day<1-31>: 31 Enterprise AP(config)#exit Enterprise AP#show sntp
7-37
SNTP Information ========================================================= Service
State
: Enabled SNTP (server 1) IP : 10.1.0.19 SNTP (server 2) IP : 192.43.244.18 Current Time
: 19 : 35, Oct 10th, 2003 Time Zone
: +8 (TAIPEI, BEIJING) Daylight Saving
: Enabled, from Mar, 31st to Oct, 31st =========================================================
Enterprise
AP#
6-36
Advanced Configuration
6
CLI Commands for the System Clock – The following example shows how to manually set the system time when SNTP server support is disabled on the access point.
Enterprise AP(config)#no sntp-server enable
7-34
Enterprise AP(config)#sntp-server date-time
7-35
Enter Year<1970-2100>: 2003 Enter Month<1-12>: 10 Enter Day<1-31>: 10 Enter Hour<0-23>: 18 Enter Min<0-59>: 35 Enterprise AP(config)#
RSSI
The RSSI value displayed on the RSSI page represents a signal to noise ratio. A value
of 30
would indicate that the power of the received signal is 30 dBm above the
ambient
noise floor. This value can be used to align antennas (see page 4-6) and
monitor
the quality of the received signal for bridge links. An RSSI value of about 30 or more indicates a strong enough signal to support the maximum data rate of 54 Mbps. Below a value of 30, the supported data rate would drop to lower rates. A value of 15 or less indicates that the signal is weak and the antennas may require realignment.
6-37
6
System Configuration
The RSSI controls allow the external connector to be disabled and the receive signal for
each WDS port displayed.
6-38
Advanced Configuration
6
RSSI:
Auto Refresh – Enables or disables the refreshing of RSSI information.
RSSI Value – The displayed RSSI value for a selected port.
Port Number: Selects a specific WDS port for which to display the RSSI output value.
Ports 1-6 are available for a Master unit, only port 1 for a Slave unit.
(Default: 1)
Distance:
Mode: Indicates if the 802.11a radio is operating in normal or Turbo mode. (See "Radio Settings A" on page 6-53.)
Distance: The approximate distance between antennas in a bridge link.
LED Status
Mode – Selects AP mode or Bridge mode.
Bridge Port – Allows the user to select the bridge port on which to monitor traffic. (Default:1; Range: 1~6)
There are currently no equivalent CLI commands for the RSSI controls.
6-39
6
System Configuration
SNMP
Simple Network Management Protocol (SNMP) is a communication protocol de si gne d specifically for managing devices on a network. Equipment commonly managed with SNMP includes switches, routers and host computers. SNMP is typically used to configure these devices for proper operation in a network en viro nm en t, as well as to monitor them to evaluate performance or detect pote ntial pro blems.
Managed devices supporting SNMP contain software, which runs locally on the device
and is referred to as an agent. A defined set of variables, known as managed
objects,
is
maintained by the SNMP agent and used to manage the device. These
objects are defined in a Manage ment Information Base (MIB) that provides a
standard presentation of the information controlled by the agent. SNMP defines both the format of the MIB specifications and the protocol used to access this information over the network.
The access point includes an onboard agent that supports SNMP versions 1, 2c, and
3
clients. This agent continuously monitors the status of the access point, as
well
as
the traffic passing to and from wireless clients. A network management
station
can access this information using SNMP management software that is compliant with MIB II. To implement SNMP management, the access point must first have an IP address and subnet mask, configured either manually or dynamically. Access
to
the onboard agent using SNMP v1 and v2c is controlled by community
strings.
To
communicate with the access point, the management station must first
submit
a
valid community string for authentication.
Access to the access point using SNMP v3 provides additional security features that cover
message integrity, authentication, and encryption; as well as controlling
notifications
that are sent to specified user targets.
6-40
SNMP
6
Configuring SNMP and Trap Message Parameters
The access point SNMP agent must be enabled to function (for versions 1, 2c, and 3 clients). Management access using SNMP v1 and v2c also requires community strings
to be
configured for authentication. Trap notifications can be enabled and
sent
to up to
four management stations.
SNMP – Enables or disables SNMP management access and also enables the
access
point to send SNMP traps (notifications). (Default: Disable)
Location – A text string that describes the system location. (Maximum length: 255
characters)
Contact – A text string that describes the system contact. (Maximum length: 255
characters)
Community Name (Read Only) – Defines the SNMP community access string that
has
read-only access. Authorized management stations are only able to retrieve MIB
objects. (Maximum length: 23 characte rs, case sensitive; Default: public)
6-41
6
System Configuration
Community Name (Read/Write) – Defines the SNMP community access string that
has
read/write access. Authorized management stations are able to both retrieve and modify MIB objects. (Maximum length: 23 characters, case sensitive; Default: private)
Trap Destination (1 to 4) – Enables recipients (up to four) of SNMP notifications.
Trap Destination IP Address – Specifies the recipient of SNMP notifications. Enter
the
IP
address or the host name. (Host Name: 1 to 63 characters, case sensitive)
Trap Destination Community Name – The community string sent with the
notification
operation. (Maximum length: 23 characters, case sensitive;
Default:
public)
Engine ID – Sets the engine identifier for the SNMPv3 agent that resides on the
access
point. This engine protects against message replay, delay, and redirection.
The
engine ID is also used in combination with user passwords to generate the
security
keys for authenticating and encrypting SNMPv3 packets. A default engine
ID
is
automatically generated that is unique to the access point. (Range: 10 to 64
hexadecimal
characters)
Note:
If
the local engine ID is deleted or changed, all SNMP users will be cleared. All
existing
users will need to be re-configured. If you want to change the default
engine
ID, change it first before configuring other SNMP v3 parameters.
6-42
SNMP
6
Trap Configuration – Allows selection of specific SNMP notifications to send. The
following items are available:
sysSystemUp - The access point is up and running.
sysSystemDown - The access point is about to shutdown and reboot.
sysRadiusServerChanged - The access point has changed from the primary RADIUS server to the secondary, or from the secondary to the primary.
sysConfigFileVersionChanged - The access point’s configuration file has been changed.
dot11StationA ssociation - A client station has successfully associated with the access
point.
dot11StationReAssociation - A client station has successfully re-associated with the
access point.
dot11StationAuthentication - A client station has been successfully authenticated.
dot11StationRequestFail - A client station has failed association, re-association, or authentication.
dot11InterfaceBFail - The 802.11b interface has failed.
dot11InterfaceAFail - The 802.11a or 802.11g interface has failed.
dot1xMacAddrAuthSuccess - A client station has successfully authenticated its MAC address with the RADIUS server.
dot1xMac AddrAuthFail - A client station has failed MAC address authentication with
the RADIUS server.
dot1xAuthNotInitiate d - A client station did not initiate 802.1X authentication.
dot1xAuthSuccess - A 802.1X client station has been successfully authenticated by
the RADIUS server.
dot1xAuthFail - A 802.1X client station has failed RADIUS authentication.
dot1xSuppAuthenticated - A supplicant station has been successfully authenticated
by
the RADIUS server
localMacAddrAuthSuccess - A client station has successfully authenticated its MAC address with the local database on the access point.
localMacAddrAuthFail - A client station has failed authentication with the local MAC address database on the access point.
iappStationRoamedFrom - A client station has roamed from another access point (identified by its IP address).
iappStationR oamedTo - A client station has roamed to another access point (identified by its IP address).
iappContextDataSent - A client station’s Context Data has been sent to another access
point with which the station has associated.
sntpServerFail - The access point has failed to set the time from the configured SNTP server.
wirelessExternalAntenna - An external antenna has been enabled.
dot11WirelessStationDeauthenticate - A client station has de-authenticated from the
network.
6-43
6
System Configuration
dot11StationD is associate - A client station no longer associates with the network.
dot11StationAuthenticateFail - A client station has tried and failed to authenticate to the network.
Enable All Traps - Click the button to enable all the available traps.
Disable All Traps - Click the button to disable all the available traps.
CLI Commands for SNMP and Trap Configuration – Use the snmp-server enable
server
command from the global configuration mode to enable the SNMP agent.
Use
the snmp-server location and snmp-server contact commands to indicate
the
physical location of the access point and define a system contact. To set the
read-only
and read/write community names, use the snmp-server community
command. Use the snmp-server host command to define a trap receiver host and
the snmp-server trap command to enable or disable specific traps.
Enterprise AP(config)#snmp-server enable server
7-42
Enterprise AP(config)#snmp-server community alpha rw
7-41
Enterprise AP(config)#snmp-server community beta ro Enterprise AP(config)#snmp-server location WC-19
7-42
Enterprise AP(config)#snmp-server contact Paul
7-41
Enterprise AP(config)#snmp-server host 192.168.1.9 alpha
7-43
Enterprise AP(config)#snmp-server trap dot11StationAssociation
7-44
Enterprise AP(config)#
6-44
dot11InterfaceG
F
ailE
nabled
pppLogonF
a
i
l
Enabled
s
ntpServerF
a
ilE
nabled
configFileVersionChan
g
e
d
Enabled
r
adiusServerChan
g
edE
nabled
systemD
o
w
n
Enabled
sy
ste
mUpE
nabled
SNMP
6
To view the current SNMP settings, use the show snmp command.
Enterprise AP#show snmp
7-54
SNMP Information ============================================== Service
State
: Enable
Community
(ro)
: *****
Community (rw)
: *****
Location
: WC-19
Contact
: Paul
EngineId :80:00:07:e5:80:00:00:2e:62:00:00:00:18 EngineBoots:1
Trap Destinations:
1:
192.168.1.9, Community: *****, State: Enabled
2:
0.0.0.0, Community: *****, State: Disabled
3:
0.0.0.0, Community: *****, State: Disabled
4:
0.0.0.0, Community: *****, State: Disabled
dot11InterfaceAGFail Enabled
dot11InterfaceBFail
Enabled
dot11StationAssociation
Enabled dot11StationAuthentication
Enabled
dot11StationReAssociat
i
onE
nabled
dot
1
1StationRequestF
a
ilE
nabled
dot1xAuthF
a
ilE
nabled
d
o
t1xAuthNotInitia
t
edE
nabled
dot1xAuthSuccess Enabled
dot1xMacAddrAuthFail
Enabled
dot1xMacAddrAuthSucc
e
ssE
nabled
i
appContextDataS
e
ntE
nabled
iappStationRoamedF
r
omE
nabled
i
appStationRoame
d
ToE
nabled
localMacAddrAuthF
a
ilE
nabled
loc
a
lMacAddrAuthSucc
e
ssE
nabled
iappContextDataSent
Enabled
dot1XSuppAuthenticated Enabled
wirelessExternalAntenna
Enabled
dot11InterfaceAFail Enabled
============================================= Enterprise
AP#
6-45
6
System Configuration
Configuring SNMPv3 Users
The access point allows up to 10 SNMP v3 users to be configured. Each user must be
defined by a unique name, assigned to one of three pre-defined security groups,
and
configured with specific authentication and encryption settings.
User – The SNMPv3 user name. (32 characters maximum) Group – The SNMPv3 group name. (Options: RO, RWAuth, or RWPriv; Default: RO)
RO –
Read-only access.
RWAuth – Read/write access with user authentication.
RWPriv – Read/write access with both user authentication and data encryption.
Auth Type – The authentication type used for the SNMP user; either MD5 or none.
When
MD5 is selected, enter a password in the corresponding Passphrase field.
Priv Type – The data encryption type used for the SNMP user; either DES or none.
When
DES is selected, enter a key in the corresponding Passphrase field.
Passphrase – The password or key associated with the authentication and privacy
settings.
A
minimum of eight plain text characters is required.
Action – Click the Add button to add a new user to the list. Click the edit button to
change
details of an existing user. Click the Del button to remove a user from the list.
Note:
Users must be assigned to groups that have the same security levels. For example,
a
user who has “Auth Type” and “Priv Type” configured to MD5 and
DES
respectively (that it, uses both authentication and data encryption) must be
assigned
to
the RWPriv group. If this same user were instead assigned to the
read-only (RO) group, the user would not be able to access the database.
6-46
Loading...