SMC Networks SMC2555W-AG User Manual

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SMC2555W-AG

EliteConnect™ Universal

2.4GHz/5GHz Wireless Access Point User Guide

The easy way to make all your network connections

38 Tesla Irvine, CA 92618 Phone: (949) 679-8000

November 2003 Revision Number: R01, F2.0.13

Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However , no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

All rights re served.

Trademarks:

SMC is a registered trademark; and EliteConnect is a trademark of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.

LIMITED WARRANTY

Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term. SMC will endeavor to repair or replace any product returned under warranty within 30 days of receipt of the product.

The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering new products within 30 days of purchase from SMC or its Authorized Reseller. Registration can be accomplished via the enclosed product registration card or online via the SMC Web site. Failure to register will not aff ect the standard limited warranty. The Limited Lifetime warranty cov ers a product during the Life of that Product, which is defined as the period of time during which the product is an “Active” SMC product. A product is considered to be “Active” while it is listed on the current SMC price list. As new technologies emerge, older technologies become obsolete and SMC will, at its discretion, replace an older product in its product line with one that incorporates these newer technologies. At t hat point, the obsolete product is discontinued and is no longer an “Active” SMC product. A list of discontinued products with their respective dates of discontinuance can be found at: http://www.smc.com/index.cfm?action=customer_service_warranty.

All products that are replaced become the property of SMC. Replacement products may be either new or reconditioned. Any replaced or repaired product carries either a 30-day limited warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible for any custom software or firmware, configuration information, or memory data of Customer contained in, stored on, or integrated with any products returned to SMC pursuant to any warranty. Products returned to SMC should have any customer-installed accessory or add-on components, such as expansion modules, removed prior to returning the product for replacement. SMC is not responsible for these items if they are returned with the product.

Customers must contact SMC for a Return Material Authorization number prior to returning any product to SMC. Proof of purchase may be required. Any product returned to SMC without a valid Return Material Authorization (RMA) number clearly marked on the outside of the package will be returned to customer at customer’s expense. For warranty claims within North America, please call our toll-free customer support number at (800) 762-4968.

LIMITED WARRANTY

Customers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer.

WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTI NG AND EXAMINATION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.

LIMITATION OF LIABIL ITY: IN NO EVENT, WHETHER BASED IN CONTRA CT OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DA MAGES.

SOME ST ATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.

* SMC will provide warranty service for one year following discontinuance from

the active SMC price list. Under the limited lifetime warranty, inter nal and external power supplies, fans, and cables are covered by a standard one-year warranty from date of purchase.

SMC Networks, Inc. 38 Tesla Irvine, CA 92618

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 b y 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 2.4 Ghz and 5 GHz Band Statements:

As the SMC2555W-AG 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.

iii

COMPLIANCES

High power radars are allocated as primary users (meaning they have priority) of the 5250-5350 MHz and 5650-5850 M Hz bands. Th ese radars could cause interference and/or damage to the access point when used in Canada.

The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

Industry Canada - Class B

This digital apparatus does not exceed the Class B limits for r adio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of Industry Canada.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans la norme sur le matérial brouilleur: “Appareils Numériques,” NMB-003 édictée par l’Industrie.

Japan VCCI Class B

Australia/New Zealand AS/NZS 4771

ACN 066 352010

Contact SMC at: SMC Networks, Inc.

38 Tesla Irvine, CA 92618 Phone: (949) 679-8000

OMPLIANCES

EC Conformance Declaration

SMC contact for these products in Europe is:

SMC Networks Europe, Edificio Conata II, Calle Fructuós Gelabert 6-8, 2 08970 - Sant Joan Despí, Barcelona, Spain.

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 301 489-1 7 - EMC requirements f or radio equipme nt

, 4a,

0560

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 allo w ed c hannel s of opera tion a ppl y in some count ries as described below:

Note: The user must use the configuration utility provided with this

product to ensure the channels of operati on are in conform an ce with the spectrum us age rul es for Europea n Communi ty co untries as described below.

• This device requires that the user or installer prop erly enter the current country of operation in the c omman d li ne 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 i llegal operation and may cause harmful interference to other s ystem. The user is obl igated to ensure th e device is operating according to the channel limitations, indoor/outdoor restrictions and license requirements for each European Community country as described in this document.

• 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

COMPLIANCES

European Community co untry. The presence of nearby radar op eration may result in temporary interruption of operation of this device. The radar detection featu re will automatica lly restart operati on 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 describe d 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 guid e.

• T his device is restricted to indoor use when operated in the European Community using the 5.15 - 5.35 GHz band: Channels 36, 40, 44, 48, 52, 56, 60, 64. See table below for al lowed 5 GHz channels by cou ntry.

• This device may be operated indoo rs or outdoo rs in all count ries of the European Community usin g the 2.4 GHz band: Channels 1 - 13, ex cept 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.

OMPLIANCES

Operation Using 5 GHz Channels in the European Community

The user/installer mus t use the provided configuration utility to check the current channel of oper ation and ma k e nec essary configur a tion c hanges to ensure operati on oc cur s in conformance with European N ationa l spe ctrum usage laws as described below and elsewhere in this document.

Allowed 5GHz Channels in Each European Community Country Allowed Frequency Ba nds 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,

5.15 - 5.35* & 5.470 - 5.725 GHz

5 GHz Operation Not Allowed

* Outdoor operation is not allowed using 5.15-5.35 GHz bands (Channels 36 - 64).

36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140

None Greece

Switzerland, Liechtenstein

Denmark, Finland, Germany, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, U.K.

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COMPLIANCES

Declaration of Conformity in Languages of the European Community

English Hereby, SMC Networks, declares that this Radio LAN device is in

Finnish Valmistaja SMC Networks vakuuttaa täten että Radio LAN device

Dutch Hierbij verklaart SMC Networks dat het toestel Radio LAN device

French Par la présente SMC Networks déclare que l'appareil Radio LAN

Swedish Härmed intygar SMC Networks att denna Radio LAN device står

Danish Undertegnede SMC Networks erklærer herved, at følgende udstyr

German Hiermit erklärt SMC Networks, dass sich dieser/diese/dieses

Greek Με την παρουσα smc networks δηλωνει οτι radio LAN device

compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG

Bij deze SMC Networks dat deze Radio LAN device voldoet aan de essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1999/5/EC.

device est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE

I överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/ EG.

Radio LAN device overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF

Radio LAN device in Übereinstimmung mit den grundlegenden Anforderungen und den anderen relevanten Vorschriften der Richtlinie 1999/5/EG befindet". (BMWi)

Hiermit erklärt SMC Networks die Übereinstimmung des Gerätes Radio LAN device mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1999/5/EG. (Wien)

συµµορφωνεται προσ τισ ουσιωδεισ απαιτησεισ και τισ λοιπεσ σΧετικεσ διαταξεισ τησ οδηγιασ 1999/5/εκ

viii

OMPLIANCES

Italian Con la presente SMC Networks dichiara che questo Radio LAN

Spanish Por medio de la presente SMC Networks declara que el Radio

Portuguese SMC Networks declara que este Radio LAN device está conforme

device è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.

LAN device cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/ CE

com os requisitos essenciais e outras disposições da Directiva 1999/5/CE.

Safety Compliance

Underwriters Laboratories Compliance Statement

Important! Before making connections, make sure you have the correct

cord set. Check it (read th e label on th e cable) against the following:

Operating Voltage Cord Set Specifications

120 Volts UL Listed/CSA Certified Cord Set

Minimum 18 AWG Type SVT or SJT three conductor cord Maximum length of 15 feet Parallel blade, grounding type attachment plug rated

15 A, 125 V

240 Volts (Europe only)

Cord Set with H05VV-F cord having three conductors with minimum diameter of 0.75 mm

IEC-320 receptacle Male plug rated 10 A, 250 V

COMPLIANCES

Wichtige Sicherheitshinweise (Germany)

1. Bitte lesen Sie diese Hinweise sorgfältig durch.

2. Heben Sie diese Anleitung für den späteren Gebrauch auf.

3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie

keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung.

4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht

zugänglich sein.

5. Das Gerät ist vor Feuchtigkeit zu schützen.

6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen

oder Fallen könnte Beschädigungen hervorrufen.

7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor

Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.

8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.

9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann.

Es sollte auch nichts auf der Leitung abgestellt werden.

10.Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.

11.Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom

Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.

12.Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten

in das Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.

13.Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen

Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.

14.Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen

und von einer qualifizierten Servicestelle zu überprüfen: a. Netzkabel oder Netzstecker sind beschädigt. b. Flüssigkeit ist in das Gerät eingedrungen. c. Das Gerät war Feuchtigkeit ausgesetzt. d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert

oder Sie mit Hilfe dieser Anleitung k eine Verbesserung erzielen. e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt. f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.

15. Stellen Sie sicher, daß die Stromversorgung dieses Gerätes nach der EN 60950 geprüft ist. Ausgangswerte der Stromversorgung sollten die Werte von

OMPLIANCES

AC 7,5-8V, 50-60Hz nicht über oder unterschreiten sowie den minimalen Strom von 1A nicht unterschreiten.

Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder weniger.

COMPLIANCES

xii

ABLE OF

ONTENTS

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Package Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Component Description . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

System Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

2 Hardware Installation . . . . . . . . . . . . . . . . . . . . . 2-1

3 Network Configuration . . . . . . . . . . . . . . . . . . . . 3-1

Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Ad Hoc Wireless LAN (no AP or Bridge) . . . . . . . . . . . . 3-2

Infrastructure Wireless LAN . . . . . . . . . . . . . . . . . . . . . 3-3

Infrastructure Wireless LAN for Roaming Wireless PCs 3-4

4 Initial Configuration . . . . . . . . . . . . . . . . . . . . . . 4-1

Initial Setup through the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Required Connections . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Initial Configuration Steps . . . . . . . . . . . . . . . . . . . . . . . 4-3

Using the Web-based Management Setup Wizard . . . . . . . . 4-4

5 System Configuration . . . . . . . . . . . . . . . . . . . . . 5-1

Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

System Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

TCP / IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Filter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27

System Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33

Radio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Radio Settings (802.11a) . . . . . . . . . . . . . . . . . . . . . . 5-39

Radio Settings (802.11g) . . . . . . . . . . . . . . . . . . . . . . 5-44

Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48

Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-61

Access Point Status . . . . . . . . . . . . . . . . . . . . . . . . . . 5-61

xiii

ABLE OF CONTENTS

Station Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-64

Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-66

6 Command Line Interface . . . . . . . . . . . . . . . . . . . 6-1

Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . .6-1

Accessing the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Telnet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Entering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Keywords and Arguments . . . . . . . . . . . . . . . . . . . . . . .6-3

Minimum Abbreviation . . . . . . . . . . . . . . . . . . . . . . . . . .6-4

Command Completion . . . . . . . . . . . . . . . . . . . . . . . . . .6-4

Getting Help on Commands . . . . . . . . . . . . . . . . . . . . . .6-4

Partial Keyword Lookup . . . . . . . . . . . . . . . . . . . . . . . . .6-5

Negating the Effect of Commands . . . . . . . . . . . . . . . . .6-6

Using Command History . . . . . . . . . . . . . . . . . . . . . . . .6-6

Understanding Command Modes . . . . . . . . . . . . . . . . .6-6

Exec Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7

Configuration Commands . . . . . . . . . . . . . . . . . . . . . . .6-7

Command Line Processing . . . . . . . . . . . . . . . . . . . . . .6-8

Command Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10

General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11

configure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11

end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12

exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12

ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13

reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14

show history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14

show line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15

System Management Commands . . . . . . . . . . . . . . . . . . . . .6-16

country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18

prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20

system name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20

username . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21

password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22

ip http port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22

ip http server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23

logging on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24

xiv

ABLE OF CONTENTS

logging host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

logging console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

logging level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

logging facility-type . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

sntp-server ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

sntp-server enable . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29

sntp-server date-time . . . . . . . . . . . . . . . . . . . . . . . . . 6-30

sntp-server daylight-saving . . . . . . . . . . . . . . . . . . . . . 6-31

sntp-server timezone . . . . . . . . . . . . . . . . . . . . . . . . . 6-32

show sntp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32

show system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33

show version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34

SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35

snmp-server community . . . . . . . . . . . . . . . . . . . . . . . 6-35

snmp-server contact . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36

snmp-server enable server . . . . . . . . . . . . . . . . . . . . . 6-37

snmp-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

snmp-server location . . . . . . . . . . . . . . . . . . . . . . . . . 6-39

show snmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40

Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40

bootfile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41

copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42

delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43

dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44

RADIUS Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45

radius-server address . . . . . . . . . . . . . . . . . . . . . . . . . 6-46

radius-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46

radius-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47

radius-server retransmit . . . . . . . . . . . . . . . . . . . . . . . 6-47

radius-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . 6-48

show radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49

802.1x Port Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50

802.1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-51

802.1x broadcast-key-refresh-rate . . . . . . . . . . . . . . . 6-52

802.1x session-key-refresh-rate . . . . . . . . . . . . . . . . . 6-53

802.1x session-timeout . . . . . . . . . . . . . . . . . . . . . . . . 6-54

address filter default . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54

ABLE OF CONTENTS

address filter entry . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-55

address filter delete . . . . . . . . . . . . . . . . . . . . . . . . . . .6-56

mac-authentication server . . . . . . . . . . . . . . . . . . . . . .6-57

mac-authentication session-timeout . . . . . . . . . . . . . . .6-58

show authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .6-59

Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-60

filter local-bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-60

filter ap-manage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-61

filter ethernet-type enable . . . . . . . . . . . . . . . . . . . . . .6-62

filter ethernet-type protocol . . . . . . . . . . . . . . . . . . . . .6-63

show filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-64

Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-64

interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-68

dns server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-68

ip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-69

ip dhcp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-71

shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-72

show interface ethernet . . . . . . . . . . . . . . . . . . . . . . . .6-72

radio-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-73

select-antenna-mode . . . . . . . . . . . . . . . . . . . . . . . . . .6-74

description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-75

ssid-broadcast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-75

speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-76

channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-77

turbo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-78

ssid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-79

beacon-interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-79

dtim-period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-80

fragmentation-length . . . . . . . . . . . . . . . . . . . . . . . . . .6-81

rts-threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-82

authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-83

encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-84

key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-85

transmit-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-86

transmit-power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-87

max-association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-88

multicast-cipher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-89

wpa-clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-90

xvi

ABLE OF CONTENTS

wpa-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92

wpa-preshared-key . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93

wpa-psk-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94

shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94

show interface wireless . . . . . . . . . . . . . . . . . . . . . . . . 6-95

show station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-97

IAPP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98

iapp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98

VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-99

vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-100

native-vlanid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-101

xvii

ABLE OF CONTENTS

Appendices

A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Maximum Distance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

B Cables and Pinouts . . . . . . . . . . . . . . . . . . . . . . .B-1

Twisted-Pair Cable Assignments . . . . . . . . . . . . . . . . . . . . . . B-1

10/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . B-2

Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . B-3

Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Console Port Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . B-4

Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . B-4

Serial Cable Signal Directions for DB-9 Ports . . . . . . . B-5

Serial Cable Signal Directions for DB-25 Ports . . . . . . B-5

C Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Transmit Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Glossary Index

xviii

Chapter 1

Introduction

SMC’s EliteConnect Universal 2.4GHz/5GHz Wireless Access Point (SMC2555W-AG) is an IEEE 802.11a/g access point that provides transparent, wireless high-speed data communications between the wired LAN and fixed, portable or mobile devices equipped with an 802.11a, 802.11b, or 802.11g wireless adapter.

This solution offers fast, reliable wireless connectivity with considerable cost savings over wired LANs (which include long-term maintenance overhead for cabling). Using 802.11a,

802.11b, and 802.11g technology , this access point can easily replace a 10 Mbps Ethernet connection or seamlessly integrate into a 10/100 Mbps Ethernet LAN.

In addition, the access point offers full network management capabilities through an easy to configure web interface, a command line interface for initial configuration and troubleshooting, and support for Simple Network Management tools, such as SMC’s EliteView (available in Q4 of 2003).

Radio Characteristics – The IEEE 802.11a/g standard uses a radio modulation technique known as Orthogonal Frequency Division Multiplexing (OFDM), and a shared collision domain (CSMA/CA). It operates at the 5 GHz Unlicensed National Information Infrastructure (UNII) band for connections to 802.11a clients, and at 2.4 GHz for connections to 802.11g clients.

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) modulation technology to achieve a communication rate of up to 11 Mbps.

1-1

Introduction

The access point also supports a 54 Mbps half-duplex connection to Ethernet networks for each active channel (up to 108 Mbps in turbo mode on the 802.11a interface).

Package Checklist

The EliteConnect Universal 2.4GHz/5GHz Wireless Access Point package includes:

• One Wireless Dual-band Access Point (SMC2555W-AG)

• One Category 5 network cable

• One RS-232 console cable

• One 5.1 VDC power adapter and power cord

• Four rubber feet

• Three mounting screws

• One Documentation CD

• This User Guide

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.

Please register this product and upgrade the product warranty at

www.smc.com

1-2

Hardware Description

Front Pa nel

Antennas

Rear Panel

Hardware Description

Indicator

Panel

Security Slot

Console

Port

RJ-45 Port,

PoE Connector

Reset

Button

5 VDC

Power Socket

1-3

Introduction

Component Description

Antennas

The access point includes two antennas for wireless communications. The signal transmitted from both antennas is identical, but only the best signal received on one of the antennas is used. The antennas transmit the outgoing signal along a horizontal plane perpendicular to the antenna (in the shape of a toroidal sphere, or a donut). The antennas should therefore be adjusted to different angles to provide better coverage. For further information, see “Positioning the Antennas” on page 2-2.

Note: You can install an optional SMC 2.4 GHz high-gain antenna for

802.11b and/or 802.11g client s in the socket on the rig ht antenna. Also, remember t o order the j umper cabl e ( to connect an external antenna to the access point. See “Radio Settings (802.11g)” on page 5-44 for information on selecting the antenna in use.

LED Indicators

The access point includes four status LED indicators, as described in the following figure and table.

Power

SMC2555W-JMPRCBL)

Ethernet

Link/Activity

802.11a

Wireless

Link/Activity

802.11b/g Wireless

Link/Activity

1-4

LED Status Description

PWR On Indicates that power is being supplied.

Flashing Indicates -

• running a self-test

• loading software program

Flashing

Indicates system err ors

(Prolonged)

Hardware Description

LED Status Description

Ethernet Link

.11a On Indicates a valid 802.11a wireless link.

On Indicates a valid 10/100 Mbps Ethernet

cable link.

Flashing Indicates that the access point is

transmitting or receiving data on a 10/100 Mbps Ethernet LAN. Flashing rate is proportional to your network activity.

Very Slow Flashing

Slow Flashing

Fast Flashing

.11g On Indicates a valid 802.11g or 802.11b

Very Slow Flashing

Slow Flashing

Fast Flashing

Searching for network association.

Associated with network but no activity.

Indicates that the access point is transmitting or receiving data through wireless links. Flashing rate is proportional to network act ivity .

wireless link. Searching for network association.

Associated with network but no activity.

Indicates that the access point is transmitting or receiving data through wireless links. Flashing rate is proportional to network act ivity .

Security Slot

The access point includes a Kensington security slot on the rear panel. You can prevent unauthorized removal of the access point by wrapping the Kensington security cable (not provided) around an unmovable object, inserting the lock into the slot, and turning the key.

1-5

Introduction

Console Port

This port is used to connect a console device to the access point through a serial cable. This connection is described under “Console Port Pin Assignments” on page B-4. The console device can be a PC or workstation running a VT-100 terminal emulator, or a VT-100 terminal.

Ethernet Port

The access point has one 10BASE-T/100BASE-TX RJ-45 port that can be attached directly to 10BASE-T/100BASE-TX LAN segments. These segments must conform to the IEEE 802.3 or

802.3u specificatio ns. This port uses an MDI (i.e., internal straight-through) pin

configuration. 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.

The access point appears as an Ethernet node and performs a bridging function by moving packets from the wired LAN to remote workstations on the wireless infrastructure.

Note: The RJ-45 port also supports Power over Ethernet (PoE) based

on the IEEE 802.3af standard. Refer to the description for the “Power Connector” for information on supplying power to the access point’s network port from a network device, such as a switch, that provides Power over Ethernet (PoE).

Reset Button

This button is used to reset the access point or restore the factory default configuration. If you hold down the button for less than 5 seconds, the access point will perform a hardware reset. If you hold down the button for 5 seconds or more, any configuration

1-6

Features and Benefits

changes you may have made are removed, and the factory default configuration is restored to the access point.

Power Connector

The access point does not have a power switch. It is powered on when connected to the AC power adapter, and the power adapter is connected to a power source. The access point automatically adjusts to any voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.

The access point may also receive Power over Ethernet (PoE) from a switch or other network device that supplies power over the network cable based on the IEEE 802.3af standard.

Note that if the access point is connected to a PoE source device and also connected to a local power source through the AC power adapter, PoE will be disabled.

Features and Benefits

• Local network connection via 10/100 Mbps Ethernet ports or 54 Mbps wireless interface (supporting up to 64 mobile users)

• IEEE 802.11a, 802.11b, and 802.11g compliant

• Advanced security through 64/128/152-bit Wired Equivalent

Protection (WEP) encryption, IEEE 802.1x port authentication, Wi-Fi Protected Access (WPA), SSID broadcast disable, remote authentication via RADIUS server, and MAC address filtering features to protect your sensitive data and authenticate only authorized users to your network

• Pr ovides seaml es s roami ng with in the IEE E 802. 11a ,

802.11b, and 802.11g WLAN environment

1-7

Introduction

• Scans all available channels and selects the best channel for each client based on the signal-to-noise ratio

Applications

The Wireless products offer a high speed, reliable, cost-effective solution for 10/100 Mbps wireless Ethernet client access to the network in applications such as:

• Remote access to corporate network information

E-mail, file transfer, and terminal emulation.

• Difficult-to-wire environments

Historical or old buildings, asbestos installations, and open areas where wiring is difficult to employ.

• Frequently changing environments

Retailers, manufacturers, and banks that frequently rearrange the workplace or change location.

• Temporary LANs for special projects or peak times

Trade shows, exhibitions and constr uc tio n site s which nee d temporary setup for a short time period. Retailers, airline and shipping companies that need additional workstations for a peak period. Auditors who require workgroups at customer sites.

• Access to databases for mobile workers

Doctors, nurses, retailers, or white-collar workers who need access to databases while being mobile in a hospital, retail store, or an office campus.

1-8

System Defaults

The following table lists some of the access point’s basic system defaults. To reset the access point defaults, use the CLI command “reset configuration” from the Exec level prompt.

Feature Parameter Default

Identification System Name Enterprise AP Administration User Name admin

Password smcadmin

General HTTP Server Enabled

HTTP Server Port 80

TCP/IP DHCP Enabled

IP Address 192.168.2.2 Subnet Mask 255.255.255.0 Default Gateway 0.0.0.0 Primary DN S IP 0.0.0.0 Secondary DNS IP 0.0.0.0

RADIUS (Primary and Secondary)

IP Address 0.0.0.0 Port 1812 Key DEFAULT Timeout 5 seconds Retransmit attempts 3

1-9

Introduction

Feature Parameter Default

MAC Authentication

802.1x Authentication

VLAN Native VLAN ID 1

Filter Control Local Bridge Disabled

SNMP Status Enabled

MAC Local MAC Authentication

Session Timeout Local MAC

System Default Local MAC

Permission Status Disabled Broadcast Key

Refresh Session Key Refresh 0 minutes (disabled) Reauthentication

Refresh Rate

VLAN Tag Support Disabled

Local Management Disabled Ethernet Type Disabled

Location null Contact Contact Community

(Read Only) Community

(Read/Write) Traps Enabled Trap Destination

IP Address Trap Destination

Community Name

0 seconds (disabled)

Allowed

0 minutes (disabled)

0 seconds (disabled)

Public

Private

null

Public

1-10

Feature Parameter Default

System Logging

Ethernet Interface

Syslog Disabled Logging Host Disabled Logging Console Disabled IP Address / Host

Name Logging Level Informational Logging Facility Type 16 Speed and Duplex Auto

0.0.0.0

System Defaults

1-11

Introduction

Feature Parameter Default

Wireless Interface

802.11a

Wireless Security

802.11a

IAPP Enabled SSID SMC Status Enabled Turbo Mode Disabled Radio Channel Default to first channel Auto Channel Select Enabled SSID Broadcast Enabled Transmit Power Full Maximum Data Rate 54 Mbps Beacon Interval 100 TUs Data Beacon Rate

(DTIM Interval) RTS Threshold 2347 bytes Authentication Type Open System WEP Encryption Disabled WEP Key Length 128 bits WEP Key Type Hexadecimal WEP Transmit Key

Number WEP Keys null WPA Configuration

Mode WPA Key

Management Multicast Cipher WEP

2 beacons

All clients

WPA authentication over 802.1x

1-12

Feature Parameter Default

Wireless Interface

802.11b/g

Wireless Security

802.11b/g

IAPP Enabled SSID SMC Status Enabled Channel Default to first channel Auto Channel Select Enabled SSID Broadcast Enabled Antenna Mode Diversity Radio Mode 11b and 11g mixed mode Transmit Power Full Maximum Data Rate 54 Mbps Beacon Interval 100 TUs Data Beacon Rate

(DTIM Interval) RTS Threshold 2347 bytes Authentication Type Open System WEP Encryption Disabled WEP Key Length 128 bits WEP Key Type Hexadecimal WEP Transmit Key

Number WEP Keys null WPA Configuration

Mode WPA Key

Management Multicast Cipher WEP

2 beacons

All clients

WPA authentication over 802.1x

System Defaults

1-13

Introduction

1-14

Chapter 2

Hardware Installation

1. Select a Site – Choose a proper place for the access point. In general, the best location is at the center of your wireless coverage area, within line of sight of all wireless devices. Try to place the access point in a position that can best cover its Basic Service Set. (Refer to “Infrastructure Wireless LAN” on page 3-3.) Normally, the higher you place the access point, the better the performance.

2. Mount the Access Point – The access point can be mounted on any horizontal surface or wall.

Mounting on a horizontal surface – To keep the access point from sliding on the surface, attach the four rubber feet provided in the accessory kit to the embossed circles on the bottom of the access point.

Mounting on a wall – The access point should be mounted only to a wall or wood surface that is at least 1/2-inch plywood or its equivalent. Mark the position of the mounting screws (included) on the wall. Set the 5/8-inch number 12 wood screws into the wall, leaving about 3 mm (0.12 in.) clearance from the wall. And then slide the access point down onto the screws.

3. Lock the Access Point in Place – To prevent unauthorized removal of the access point, you can use a Kensington Slim MicroSaver security cable (not included) to attach the access point to a fixed object.

4. Connect the Power Cord – Connect the power adapter to the access point, and the power cord to an AC power outlet.

2-1

Hardware Installation

Otherwise, the access point can derive its operating power directly from the RJ-45 port when connected to a device that provides IEEE 802.3af compliant Power over Ethernet (PoE).

Note: If the access point is connected to both a PoE source device

and an AC power source, PoE will be disabled.

Warning: Use ONLY the power adapter supplied with this access

point. Otherwise, the product may be damaged.

5. Observe the Self Test – When you power on the access point, verify that the PWR indicator stops flashing and remains on, and that the other indicators start functioning as described under “LED Indicators” on page 1-4.

If the PWR LED does not stop flashing, the self test has not completed correctly. Refer to “Troubleshooting” on page A-1.

6. Connect the Ethernet Cable – The access point can be wired to a 10/100 Mbps Ethernet through a network device such as a hub or a switch. Connect your network to the RJ-45 port on the back panel with category 3, 4, or 5 UTP Ethernet cable. When the access point and the connected device are powered on, the Ethernet Link LED should light indicating a valid network connection.

Note: The RJ-45 port on the access point uses an MDI pin

configuration, so you must use straight-through cable for network connections to hubs or switches that only have MDI-X ports, and crossover cable for network connections to PCs, servers or other end nodes that only have MDI ports. However, if the device to which you are connecting supports auto-MDI/MDI-X operation, you can use either straight-through or crossover cable.

7. Position the Antennas – The antennas emit signals along a plane perpendic ul ar to the antenna (wi th the propag ati on pattern shaped as a toroidal sphere as shown to the left), and thus provide more effective coverage when positioned along different axes. For example, you might position the antennas around 45 to 90 degrees from each other.

2-2

Hardware Installation

The access point also compares the strength of an incoming signal on both antennas, and uses the antenna receiving the stronger signal to communicate with a wireless client.

8. Connect the Console Port – Connect the console cable (included) to the RS-232 console port for accessing the command-line interface. You can manage the access point using the console port (Chapter 6), the web interface (Chapter 5), or SNMP management software such as SMC’s EliteView.

2-3

Hardware Installation

2-4

Chapter 3

Network Configuration

The wireless solution supports a stand-alone wireless network configuration as well as an integrated configuration with 10/100 Mbps Ethernet LANs.

Wireless network cards, adapters, and access points can be configured as:

• Ad hoc for departmental, SOHO, or enterprise LANs

• Infrastructure for wireless LANs

• Infrastructure wireless LAN for roaming wireless PCs

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 to

reduce interference

• Increase the channel separation of neighboring access points

(e.g., up to 3 channels of separation for 802.11b, up to 4 channels for 802.11a, or up to 5 channels for 802.11g)

3-1

Network Configuration

Network Topologies

Ad Hoc Wireless LAN (no AP or Bridge)

An ad hoc wireless LAN consists of a group of computers, each equipped with a wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must therefore be configured to the same radio channel.

Ad Hoc Wireless LAN

Notebook with Wireless USB Adapter

Notebook with Wireless PC Card

PC with Wireless PCI Adapter

3-2

Network Topologies

Infrastructure Wireless LAN

The access point also provides access to a wired LAN for wireless w ork stations. 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 this BSS can talk to any computer in its wireless group via a radio link, or access other computers or network resources in the wired LAN infrastructure via 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 signal 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 Adapters

File Server

Desktop PC

Switch

Notebook with Wireless PC Card Adapter

Access Point

PC with Wireless PCI Adapter

3-3

Network Configuration

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.

3-4

Network Topologies

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 SMC wireless network card adapters and SMC2555W-AG wireless access points within a specific ESS must be configured with the same SSID.

File Server

Desktop PC

Switch

Notebook with Wireless PC Card Adapter

Switch

PC with Wireless PCI Adapter

Access Point

Notebook with Wireless PC Card Adapter

<BSS1>

Access Point

<ESS>

Seamless Roaming

<BSS2>

3-5

Network Configuration

3-6

Chapter 4

Initial Configuration

The EliteConnect Universal 2.4GHz/5GHz Wireless Access Point SMC2555W-AG offers a variety of management options, including a web-based interface, a direct connection to the console port, or using SNMP software such as SMC’s EliteView.

The initial configuration steps can be made through the web browser interface using the Setup Wizard (page 4-4). The access point requests an IP address via DHCP by default. If no response is received from a DHCP server, then the access point uses the default address 192.168.2.2. 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 4-4).

Initial Setup through the CLI

Required Connections

The SMC2555W-AG 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 null-modem cable that complies with the wiring assignments shown on page B-4.

4-1

Initial Configuration

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.

Note: When using HyperTerminal with Microsoft

sure that you have Windows 2000 Service Pack 2 or later installed. Windows 2000 Service Pack 2 fixes the problem of arrow keys not functioning in HyperTerminal’s VT100 emulation. See www.microsoft.com for information on Windows 2000 service packs.

Windows® 2000, make

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.

For a description of how to use the CLI, see “Using the Command Line Interface” on page 6-1. For a list of all the CLI commands and detailed information on using the CLI, refer to “Command Groups” on page 6-10.

4-2

Initial Setup through the CLI

Initial Configuration Steps

Logging In – Enter “admin” for the user name and “smcadmin”

for the password. The CLI prompt appears displaying the access point’s model number.

Username: admin Password: SMC Enterprise AP#

Setting the IP Address – By default, the access point is configured to obtain IP address settings from a DHCP server. You may also 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.

SMC Enterprise AP#configure SMC Enterprise AP(config)#interface ethernet SMC 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.

SMC Enterprise AP(if-ethernet)#no ip dhcp SMC Enterprise AP(if-ethernet)#ip address 192.168.2.2

255.255.255.0 192.168.2.254

SMC 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

4-3

Initial Configuration

accessed using Telnet from any computer attached to the network.

Setting the Country Code – Units sold in the United States are configured by default to use only radio channels 1-11 as defined by FCC regulations. 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 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., IE for Ireland).

SMC Enterprise AP#country ie SMC Enterprise AP#

Using the Web-based Management Setup Wizard

There are only a few basic steps you need to complete to connect the SMC2555W-AG to your corporate network, and provide network access to wireless clients. The Setup Wizard takes you through configuration procedures for the wireless Service Set Identifier, the radio channel selection, and IP configuration.

The SMC2555W-AG can be managed by any computer using a web browser. Enter the default IP address: http://192.168.2.2

4-4

Using the Web-based Management Setup Wizard

Logging In – Enter the username “admin,” the password “smcadmin,” and click LOGIN. For information on configuring a user name and password, refer to page 5-27.

The home page displays the Main Menu.

4-5

Initial Configuration

Launching the Setup Wizard – To perform initial configuration, click Setup Wizard on the home page, then click on the [Next] button to start the process.

1. Service Set ID – Enter the service set identifier in the SSID box which all wireless clients must use to associate with the access point. The SSID is case sensitive and can consist of up to 32 alphanumeric characters. (Default: SMC)

4-6

Using the Web-based Management Setup Wizard

2. Radio Channel – You must enable radio communications for

802.11a and 802.11b/g, and set the operating radio channel.

• 802.11a Turbo Mode – If you select Enable, the

access point will operate in turbo mode with a data rate of up to 108 Mbps. Normal mode support 13 channels, Turbo mode supports only 5 channels. (Default: Disable)

802.11a Radio Channel – Set the operating radio channel number. (Default: 60ch,

5.300 GHz) Auto Channel Select – Select Enable for automatic radio

channel detection. (Default: Enable)

4-7

Initial Configuration

• 802.11b/g

802.11g Radio Channel: Set the operating radio

channel number. (Range: 1-11; Default: 11)

Note: Available channel settings ar e limited by local

regulations which determine which channels are available. (See “Maximum Channels” on page C-1.)

3. IP Configuration – Either enable or disable Dynamic Host Configuration Protocol (DHCP) for automatic IP configuration. If you disable DHCP, then manually enter the IP address and subnet mask. If a management station exists on another network segment, then you must enter the IP address for a gateway that can route traffic between these segments. Then enter the IP address for the primary and secondary Domain Name Servers (DNS) servers to be used for host-name to IP address resolution.

4-8

Using the Web-based Management Setup Wizard

DHCP Client – With DHCP Client enabled, the IP address,

subnet mask and default gateway can be dynamically assigned to the access point by the network DHCP server. (Default: Enable)

Note: If there is no DHCP server on your network, then the access

point will automatically start up with its default IP address,

192.168.2.2.

4. Click Finish.

5. Click the OK button to restart the access point.

4-9

Initial Configuration

4-10

Chapter 5

System Configuration

Before continuing with advanced configuration, first complete the initial configuration steps described in Chapter 4 to set up an IP address for the SMC2555W-AG.

The SMC2555W-AG can be managed by any computer using a web browser. Enter the default IP address: http://192.168.2.2

To log into the SMC2555W-AG, enter the default user name “admin” and password “smcadmin.” When the home page displays, click on Advanced Setup. The following page will display.

5-1

System Configuration

The information in this chapter is organized to reflect the structure of the web screens for easy reference. However, we recommend that you configure a user name and password as the first step under advanced configuration to control management access to this device (page 5- 27 ).

Advanced Configuration

The Advanced Configuration pages include the following options.

Menu Description Page

System Configures basic administrative and client

Identification Specifies the host name and Service Set

TCP / IP Settings Configures the IP address, subnet mask,

Radius Configures the RADIUS server for wireless

Authentication Configures 802.1x cl ient authentication, wi th

Filter Control Filters communications between wirel es s

SNMP Controls access to this access point from

Administration Configures user name and password for

System Log Controls logging of error m essages; sets the

access

Identifier (SSID)

gateway, and domain name servers

client authenticati on

an option for MAC address authentication

clients, access to the managemen t interface from wireless clients, and traffic matching specific Ethernet protocol types

management stations using SNMP, as well as the hosts that will receive trap messages

management from local file, FTP or TFT P server; configuration settings to factory defaults; and resets the access point

system clock via SNTP server or manual configuration

access; upgrades software

resets

5-4

5-6

5-9

5-12

5-19

5-24

5-27

5-33

5-2

Advanced Configuration

Menu Description Page

Radio Interface 1 Configures the IEEE 802.11a interface 5-38

Radio Settings Configures radio signal parameters, such as

radio channel, transmission rate, and beacon settings

Security Configures data encryption with Wired

Equivalent Protection (WEP) or Wi-Fi Protected Access (WPA)

Radio Interface 2 Configures the IEEE 802.11b/g interface 5-38

Radio Settings Configures radio signal parameters, such as

radio channel, transmission rate, and beacon settings

Security Configures data encryption with Wired

Equivalent Protection (WEP) or Wi-Fi Protected Access (WPA)

5-39

5-48

5-44

5-48

5-3

System Configuration

System Identification

The system information parameters for the SMC2555W-AG can be left at their default settings. However, modifying these parameters can help you to more easily distinguish different devices in your network.

You should set a Service Set Identification (SSID) to identify the wireless network service provided by the SMC2555W-AG. Only clients with the same SSID can associate with the access point.

System Name – An alias for the access point, enabling the device to be uniquely identified on the network. (Default: Enterprise AP; Range: 1-22 characters)

SSID – The name of the basic service set provided by the access point. Clients that want to connect to the network through the access point must set their SSID to the same as that of the access point. (Default: SMC; Range: 1-32 characters)

5-4

Advanced Configuration

CLI Commands for System Identification – Enter the global configuration mode, and use the system name command to specify a new system name. Enter the wireless configuration mode (either 11a or 11g), and use the ssid command to set the service set identifier. Then return to the Exec mode, and use the show system command to display the changes to the system identification settings.

SMC AP#configure 6-11 SMC-AP(config)#system name R&D 6-20 SMC-AP(config)#interface wireless a 6-68 SMC-AP(if-wireless a)#ssid r&d 6-79 SMC-AP(if-wireless a)#end 6-12 SMC-AP#show system 6-33

System Information =================================================== Serial Number : A324003220 System Up time : 0 days, 0 hours, 32 minutes, 51 seconds System Name : r&d System Location : System Contact : Contact System Country Code : US - UNITED STATES MAC Address : 00-30-F1-91-91-5B IP Address : 192.168.2.51 Subnet Mask : 255.255.255.0 Default Gateway : 192.168.2.250 VLAN State : DISABLED Native VLAN ID : 1 IAPP State : ENABLED DHCP Client : ENABLED HTTP Server : ENABLED HTTP Server Port : 80 Slot Status : Dual band(a/g) Software Version : v2.0.13 ===================================================

SMC-AP#

5-5

System Configuration

TCP / IP Settings

Configuring the SMC2555W-AG 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 SMC2555W-AG will be automatically configured with IP settings from a Dynamic Host Configuration 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 (page 4-3). 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 automat ically start up w ith a default IP address of

192.168.2.2.

5-6

Advanced Configuration

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: Enable)

DHCP Client (Disable) – Select this option to manually configure a static address for the access point.

• 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 gatewa y 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).

5-7

System Configuration

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 spec ify 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.

SMC-AP(config)#interface ethernet 6-68 Enter Ethernet configuration commands, one per line. SMC-AP(if-ethernet)#no ip dhcp 6-71 SMC-AP(if-ethernet)#ip address 192.168.1.2

255.255.255.0 192.168.1.253 6-69 SMC-AP(if-ethernet)#dns primary-server 192.168.1.55 6-68 SMC-AP(if-ethernet)#dns secondary-server 10.1.0.55 6-68 SMC-AP(config)#end 6-12 SMC-AP#show interface ethernet 6-72 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 ======================================== SMC-AP#

5-8

Advanced Configuration

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 SMC2555W-AG 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.

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.

5-9

System Configuration

Primary Radius Server Setup – Configure the following settings

to use RADIUS authentication on the access point.

• IP Address: Specifies the IP address of the RADIUS server.

• Port: The UDP port number used by the RADIUS server for

authentication messages. (Ran ge: 1024 -6553 5; 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)

Note: For the Timeout and Retransmit attempts fields, accept the

default values unless you experi ence problem s 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.

5-10

Advanced 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 show radius command from the Exec mode to display the current settings for the primary and secondary RADIUS servers.

SMC-AP(config)#radius-server address 192.168.1.25 6-46 SMC-AP(config)#radius-server port 181 6-46 SMC-AP(config)#radius-server key green 6-47 SMC-AP(config)#radius-server timeout 10 6-48 SMC-AP(config)#radius-server retransmit 5 6-47 SMC-AP(config)#exit SMC-AP#show radius 6-49

Radius Server Information ======================================== IP : 192.168.1.25 Port : 181 Key : ***** Retransmit : 5 Timeout : 10 ========================================

Radius Secondary Server Information ======================================== IP : 0.0.0.0 Port : 1812 Key : ***** Retransmit : 3 Timeout : 5 ======================================== SMC-AP#

5-11

System Configuration

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 the IEEE 802.1x network access authentication protocol to look up their MAC addresses on a RADIUS server. The 802.1x protocol can also be configured to check other user credentials such as a user name and password.

5-12

Advanced Configuration

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 SMC2555W-AG or remotely on a central RADIUS server. (Default: Local MAC)

• Local MAC: The MAC address of the associating station is compared against the local database stored on the access point. The Local MAC Authentication section enables the local database to be set up.

• 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 (page 5-9).

• Disable: No checks are performed on an associating station’s MAC address.

Local MAC Authentication – Configures th e 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.”

5-13

System Configuration

• 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 T able: Displays current entries in the local MAC database.

802.1x Setup – IEEE 802.1x is a standard framework for network

access control that uses a central RADIUS server for user authentication. This control feature prevents unauthorized access to the network by requiring an 802.1x client application to submit user credentials for authentication. The 802.1x standard uses the Extensible Authentication Protocol (EAP) to pass user credentials (either digital certificates, user names and passwords, or other) from the client to the RADIUS server. Client authentication is then verified on the RADIUS server before the access point grants client access to the network.

The 802.1x EAP packets are also used to pass dynamic unicast session keys and static broadcast keys to wireless clients. Session keys are unique to each client and are used to encrypt and correlate traffic passing between a specific client and the access point. You can also enable broadcast key rotation, so the access point provides a dynamic broadcast key and changes it at a specified interval.

You can enable 802.1x as optionally supported or as required to enhance the security of the wireless network.

• Disable: The access point does not support 802.1x authentication for any wireless client. After successful

5-14

Advanced Configuration

wireless association with the access point, each client is allowed to access the network.

• Supported: The access point supports 802.1x authentication only for clients initiating the 802.1x authentication process (i.e., the access point does not initiate 802.1x authentication). For clients initiating 802.1x, only thos e succ es sfu ll y authenticated are allowed to access the network. For those clients not initiating 802.1x, access to the network is allowed after successful wireless association with the access point.

• Required: The access point enforces 802.1x authentication for all associated wireless clients. If 802.1x authentication is not initiated by a client, the access point will initiate authentication. Only those clients successfully authenticated with 802.1x are allowed to access the network.

When 802.1x is enabled, the broadcast and session key rotation intervals can also be configured.

• Broadcast Key Refresh Rate: Sets the interval at which the broadcast keys are refreshed for stations using 802.1x dynamic keying. (Range: 0-1440 minutes; Default: 0 means disabled)

• Session Key Refresh Rate: The interval at which the access point refreshes unicast session keys for associated clients. (Range: 0-1440 minutes; Default: 0 means disabled)

• 802.1x Re-authentication Refresh Rate: The time period after which a connected client must be re-authenticated. During the re-authentication process of verifying the client’s credentials on the RADIUS server, the client remains connected the network. Only if re-authentication fails is network access blocked. (Range: 0-65535 seconds; Default: 0 means disabled)

5-15

System Configuration

CLI Commands for Local MAC Authentication – Use the

mac-authentication serv er command from the global configuration mode to enable local MAC authentication. Set the default 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.

SMC-AP(config)#mac-authentication server local 6-57 SMC-AP(config)#address filter default denied 6-54 SMC-AP(config)#address filter entry 00-70-50-cc-99-1a denied 6-55 SMC-AP(config)#address filter entry 00-70-50-cc-99-1b allowed SMC-AP(config)#address filter entry 00-70-50-cc-99-1c allowed SMC-AP(config )# address filter de let e 00 -70-50-cc-99- 1c 6-56 SMC-AP(config)#exit SMC-AP#show authentication 6-59

Authenticatio n In formation ========================================================= MAC Authenticat io n Server : LOCAL MAC Auth Session Ti meo ut Value : 300 secs

802.1x : DISABLED Broadcast Key Refresh Rate : 5 min Session Key Refresh Rate : 5 min

802.1x Session Timeout Value : 300 secs Address Filtering : DENIED

System Default : DE NY ad dresses not found in fil te r table. Filter Table

MAC Address Status

----------------- ---------00-70-50-cc-99-1a DENIED 00-70-50-cc-99-1b ALLOWED ========================================================= SMC-AP#

5-16

Advanced Configuration

CLI Commands for RADIUS MAC Authentication – Use the mac-authentication serv er 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 i n the following example). To display the current settings, use the show authentication command from the Exec mode.

SMC-AP(config)#mac-authentication server remote 6-57 SMC-AP(config)#mac-authentication session-timeout 300 6-58 SMC-AP(config)#exit SMC-AP#show authentication 6-59

Authentication Information ========================================================= MAC Authentication Server : REMOTE MAC Auth Session Timeout Value : 300 secs

802.1x : DISABLED Broadcast Key Refresh Rate : 5 min Session Key Refresh Rate : 5 min

802.1x Session Timeout Value : 300 secs 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 ========================================================= SMC-AP#

5-17

System Configuration

CLI Commands for 802.1x Authentication – Use the 802.1x supported command from the global configuration mode to

enable 802.1x authentication. Set the session and broadcast key refresh rate, and the re-authentication timeout. To display the current settings, use the show authentication command from

the Exec mode.

SMC-AP(config)#802.1x supported 6-51 SMC-AP(config)#802.1x broadcast-key-refresh-rate 5 6-52 SMC-AP(config)#802.1x session-key-refresh-rate 5 6-53 SMC-AP(config)#802.1x session-timeout 300 6-54 SMC-AP(config)#exit SMC-AP#show authentication 6-59

Authentication Information ========================================================= MAC Authentication Server : REMOTE MAC Auth Session Timeout Value : 300 secs

802.1x : SUPPORTED Broadcast Key Refresh Rate : 5 min Session Key Refresh Rate : 5 min

802.1x Session Timeout Value : 300 secs Address Filtering : DENIED

5-18

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 ========================================================= SMC-AP#

Advanced Configuration

Filter Control

The access point can employ VLAN ID and network traffic frame filtering to control access to network resources and increase security.

5-19

System Configuration

Native VLAN ID – The VLAN ID assigned to wireless clients that

are not assigned to a specific VLAN by RADIUS server configuration.

VLAN – Enables or disables VLAN tagging support on the SMC2555W-AG. If enabled, the access point will tag traffic passing from wireless clients to the wired network with the VLAN ID associated with each client on the 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 wireless clients, thereby improving security.

A VLAN ID (1-4095) is assigned to a 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. If a user does not have a configured VLAN ID, the access point assigns the user to its own configured native VLAN ID.

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 VLANID

(1 to 4095 in hexadecimal)

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.

5-20

Advanced Configuration

When VLAN filtering is enabled, the access point must also have

802.1x authentication enabled and a RADIUS server configured.

Wireless clients must also support 802.1x client software to be assigned to a specific VLAN.

When VLAN filtering is disabled, the access point ignores the VLAN tags on any received frames.

Local Bridge Filter – Controls wireless-to-wireless communications between clients through the SMC2555W-AG. However, it does not affect communications between wireless clients and the wired network.

• Disable: Allows wireless-to-wireless communications between clients through the access point.

• Enable: Blocks wireless-to-wireless communications between clients through the access point.

AP Management Filter – Controls management access to the SMC2555W-AG from wireless clients. Management interfaces include the web, Telnet, or SNMP.

• Disable: Allows management access from wireless clients.

• Enable: Blocks management access from wireless clients.

Ethernet Type Filt er – Controls checks on the Ethernet type of all incoming and outgoing Ethernet packets against the protocol filtering table.

• Disable: Access point does not filter Ethernet protocol types.

• Enable: Access point filters Ethernet protocol types based on

the configuration of protocol types in the filter table. If a protocol has its status set to “ON, ” the protocol is filtered from the access point.

5-21

System Configuration

CLI Commands for VLAN Support – From the global configuration mode use the native-vlanid command to set the default VLAN ID for the Ethernet interface, then enable VLANs using the vlan enable command. When you change the access point’s VLAN support setting, you must reboot the access point to implement the change. To view the current VLAN settings, use

the show system command.

SMC-AP(config)#native-vlanid 3 6-101 SMC-AP(config)#vlan enable 6-100 Reboot system now? <y/n>: y SMC-AP#show system 6-33

Native VLAN ID : 3

IAPP State : ENABLED DHCP Client : ENABLED HTTP Server : ENABLED HTTP Server Port : 80 Slot Status : Dual band(a/g) Software Version : v2.0.13 ===================================================

5-22

SMC-AP#

Advanced Configuration

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 ethe rne t- t ype 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.

SMC-AP(config)#filter local-bridge 6-60 SMC-AP(config)#filter ap-manage 6-61 SMC-AP(config)#filter ethernet-type enable 6-62 SMC-AP(config)#filter ethernet-type protocol ARP 6-63 SMC-AP(config)#exit SMC-AP#show filters 6-64

Protocol Filter Information ========================================================= Local Bridge :ENABLED AP Management :ENABLED Ethernet Type Filter :ENABLED

Enabled Protocol Filters

--------------------------------------------------------Protocol: ARP ISO: 0x0806 ========================================================= SMC-AP#

5-23

System Configuration

SNMP

You can use a network management application such as SMC’s EliteView (EliteView v6.11, available in Q4 of 2003) to manage the SMC2555W-AG via the Simple Network Management Protocol (SNMP) from a network management station. To implement SNMP management, the SMC2555W-AG must have an IP address and subnet mask, configured either manually or dynamically. Once an IP address has been configured, appropriate SNMP communities and trap receivers should be configured.

Community names are used to control management access to SNMP stations, as well as to authorize SNMP stations to receive trap messages from the access point. To communicate with the access point, a management station must first submit a valid community name for authentication. You therefore need to assign community names to specified users or user groups and set the access level.

5-24

Advanced Configuration

SNMP – Enables or disables SNMP management access and

also enables the access point to send SNMP traps (notifications). SNMP management is enabled by default.

Location – A text string that describes the system location. (Maximum length: 20 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 characters, case sensitive)

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)

Trap Destination IP Address – Specifies the recipient of SNMP notifications. Enter the IP address or the host name. (Host Name: 1 to 20 characters)

Trap Destination Community Name – The community string sent with the notification operation. (Maximum length: 23 characters, case sensitive)

5-25

System Configuration

CLI Commands for SNMP – Use the snmp-server enable server command from the global configuration mode. To set

read/write and read-only community names, use the

snmp-server community command. Use the snmp-server location and snmp-server contact commands to indicate the

physical location of the access point and define a system contact. The snmp-server host command defines a trap receiver host. T o

view the current SNMP settings, use the show snmp command.

SMC-AP(config)#snmp-server enable server 6-37 SMC-AP(config)#snmp-server community alpha rw 6-35 SMC-AP(config)#snmp-server community beta ro SMC-AP(config)#snmp-server location WC-19 6-39 SMC-AP(config)#snmp-server contact Paul 6-36 SMC-AP(config)#snmp-server host 10.1.19.23 alpha 6-38 SMC-AP(config)#exit SMC-AP#show snmp 6-40

SNMP Information ============================================ Service State : Enable Community (ro) : **** Community (rw) : ***** Location : WC-19 Contact : Paul Traps : Enabled Host Name/IP : 10.1.19.23 Trap Community : ***** =============================================

5-26

SMC-AP#

Advanced Configuration

Administration

Changing the Password

Management access to the web and CLI interface on the SMC2555W-AG 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 5-19.)

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 acce ss to the access point may be able to compromise access point and network security.

Note: Pressing the Reset button on the back of the SMC2555W-AG for

more than five seconds rese ts the user name and pas sword to the factory defaults. For this reason, we recommend that you protect the access point from physical access by unauthorized persons.

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.

5-27

System Configuration

CLI Commands for the User Name and Password – Use the

username and password commands from the CLI configuration mode.

SMC-AP(config)#username bob 6-21 SMC-AP(config)#password smcadmin 6-22 SMC-AP#

5-28

Advanced Configuration

Upgrading Firmware

You can upgrade new SMC2555W-AG software from a local file on the management workstation, or from an FTP or TFTP server. New software may be provided periodically on SMC’s web site (http://www.smc.com).

After upgrading new software, you must reboot the SMC2555W-AG to implement the new code. Until a reboot occurs, the SMC2555W-AG will continue to run the software it was using before the upgrade started. After rebooting the access point with new software, we advise resetting the configuration to the factory default settings.

5-29

System Configuration

Before upgrading new software, verify that the SMC2555W-AG 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 upgrading 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. 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, “.”, “-”, “_”)

5-30

Advanced Configuration

Firmware Upgrade Remote – Downloads 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. (\ or /), (.), 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.

Restore Factory Settings – Click the Restore button to reset the configuration settings for the SMC2555W-AG 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 management access to this device.

Reset Access Point – Click the Reset button to reboot the system.

The new firmware file name sho uld not contain slashes

the leading letter of the file name should not be a period

Note: If you have upgraded system software, then you must reboot the

SMC2555W-AG to implement the new operation code.

5-31

System Configuration

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.

SMC-AP#copy tftp file 6-42

1. Application image

2. Config file

3. Boot block image Select the type of download<1,2,3>: [1]:1 TFTP Source file name:smc-img.bin TFTP Server IP:192.168.1.19

SMC-AP#dir 6-44 File Name Type File Size

-------------------------- ---- ----------dflt-img.bin 2 1319939 smc-img.bin 2 1629577 syscfg 5 17776 syscfg_bak 5 17776

5-32

262144 byte(s) available

SMC-AP#reset board 6-14 Reboot system now? <y/n>: y

Advanced Configuration

System Log

The SMC2555W-AG 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 SMC2555W-AG 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 – Enables the logging of error messages. Logging Host – Enables the sending of log messages to a Syslog

server host. Server Name/IP – The IP address or name of a Syslog server.

5-33

System Configuration

Logging Console – Enables the logging of error messages to the

console. Logging Level – Sets the minimum severity level for event

logging. 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 (Alert) to least severe (Debug). The message levels that are logged include the specified minimum level up to the Alert level.

Error Level Description

Alerts Immediate action needed Critical Critical conditions (e.g., memory allocation, or free

Error Error conditions (e.g., invalid input, default used) Warning Warni ng con di tions (e.g., return false, unexpected

Notice Normal but significant condition, such as cold start Informational Informational messages only Debug Debugging messages

memory error - resource exhausted)

return)

Note: The access point error log can be viewed using the Event Logs

window in the Status sect ion (pag e 5-66).The Event Logs window displays the last 128 messages logged in chronological order, from the newest to the oldest. Log me ss ages saved in the ac ce ss point’s memory are erased when the device is rebooted.

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

5-34

Advanced Configuration

number to use on the Syslog server. To view the current logging settings, use the show logging command.

SMC-AP(config)#logging on 6-24 SMC-AP(config)#logging level alert 6-26 SMC-AP(config)#logging console 6-25 SMC-AP(config)#logging host 1 10.1.0.3 514 6-24 SMC-AP(config)#logging facility-type 19 6-27 SMC-AP(config)#exit SMC-AP#show logging 6-27

Logging Information ============================================ Syslog State : Enabled Logging Host State : Enabled Logging Console State : Enabled Server Domain name/IP : 1 10.1.0.3 Logging Level : Error Logging Facility Type : 16 =============================================

SMC-AP#

Configuring SNTP

Simple Network Time Protocol (SNTP) allows the SMC2555W-AG 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 SMC2555W-AG 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.

5-35

System Configuration

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.

Note: The SNTP is disabled, you can manually set the date and time of

the system clock.

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

5-36

Advanced Configuration

daylight savings. To view the current SNTP settings, use the show sntp command.

SMC-AP(config)#sntp-server ip 10.1.0.19 6-28 SMC-AP(config)#sntp-server enable 6-29 SMC-AP(config)#sntp-server timezone +8 6-32 SMC-AP(config)#sntp-server daylight-saving 6-31 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 SMC-AP(config)#exit SMC-AP#show sntp 6-32

SNTP Information ========================================================= Service State : Enabled SNTP (server 1) IP : 137.92.140.80 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, 31th to Oct, 31th =========================================================

SMC-AP#

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.

SMC-AP(config)#no sntp-server enable 6-29 SMC-AP(config)#sntp-server date-time 6-30 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 SMC-AP(config)#

5-37

System Configuration

Radio Interface

The IEEE 802.11a and 802.11g interfaces include co nfig urati on options for radio signal characteristics and wireless security features. The configuration options are nearly identical, and are therefore both covered in this section of the manual.

The access point can operate in several different radio modes, IEEE 802.11a only, 802.11b only , 802.11g only , 802.11b/g only , or a mixed 802.11a/b/g mode. Also note that 802.11g is backward compatible with 802.11b. These interfaces are configured independently under the following web pages:

• Radio Interface 1: 802.11a

• Radio Interface 2: 802.11b/g

Note: The radio channel settings for the SMC2555W-AG are limited by

local regulations, which determine the number of channels that are available.

5-38

Radio Interface

Radio Settings (802.11a)

The IEEE 802.11a interface operates within the 5 GHz band, at up to 54 Mbps in normal mode or up to 108 Mbps in Turbo mode.

Enable – Enables radio communications on the SMC2555W-AG. (Default: Enabled)

Turbo Mode – The normal 802.11a wireless operation mode provides connections up to 54 Mbps. Turbo Mode is an enhanced mode (not regulated in IEEE 802.11a) that provides a higher data rate of up to 108 Mbps. Enabling Turbo Mode allows the SMC2555W-AG to provide connections up to 108 Mbps. (Default: Disabled)

5-39

System Configuration

Note: In normal mode, the access point provides a channel bandwidth

of 20 MHz, and supports the maximum number of channels permitted by local regulations (e.g., 11 channels for the United States). In Turbo Mode, the channel bandwidth is increased to 40 MHz to support the incr eased data rate . However, th is reduce s the number of channels su pported (e.g., 5 channels fo r the United States).

Radio Channel – The radio channel that the

Normal Mode

access point uses to communicate with wireless clients. When multiple access points are deployed in the same area, set the channel on neighboring access points at least four channels apart to avoid interference with each other. For example, in the United States you can deploy up to four access points in the same area (e.g., channels 36, 56, 149, 165). Also note that the channel for wireless clients is automatically set to the same as that used by

Turbo Mode

the access point to which it is linked. (Default: Channel 60 for normal mode, and channel 42 for Turbo mode)

Auto Channel Select – Enables the access point to automatically select an unoccupied radio channel. (Default: Enabled)

SSID Broadcast – The SSID broadcast can be disabled to prevent access to clients without a pre-configured SSID. When disabled, the access point will not include its SSID in beacon messages. Nor will it respond to probe requests from clients that do not include the correct SSID. (Default: Enabled)

Transmit Power – Adjusts the power of the radio signals transmitted from the access point. The higher the transmission power, the farther the transmission range. Power selection is not just a trade off between coverage area and maximum supported

5-40

Radio Interface

clients. You also have to ensure that high-power signals do not interfere with the operation of other radio devices in the service area. (Options: 100%, 50%, 25%, 12%, minimum; Default: 100%)

Maximum Supported Rate – The maximum data rate at which a client can connect to the access point. The maximum transmission distance is affected by the data rate. The lower the data rate, the longer the transmission distance. (Options: 54, 48, 36, 24 Mbps; Default: 54 Mbps)

Beacon Interval – The rate at which beacon signals are transmitted from the access point. The beacon signals allow wireless clients to maintain contact with the access point. They may also carry power-management information. (Range: 20-1000 TUs; Default: 100 TUs)

Data Beacon Rate – The rate at which stations in sleep mode must wake up to receive broadcast/multicast transmissions.

Known also as the Delivery Traffic Indication Map (DTIM) interval, it indicates how often the MAC layer forwards broadcast/multicast traffic, which is necessary to wake up stations that are using Power Sa ve mode. The default value of 2 indicates that the access point will save all broadcast/multicast frames for the Basic Service Set (BSS) and forward them after every second beacon. Using smaller DTIM intervals delivers broadcast/multicast frames in a more t ime ly mann er, causing stati ons in Power Sa v e mo de t o wake up more often and drain power faster. Using higher DTIM values reduces the power used by stations in Power Save mode, but delays the transmission of broadcast/multicast frames. (Range: 1-255 beacons; Default: 2 beacons)

RTS Threshold – Sets the packet size threshold at which a Request to Send (RTS) signal must be sent to a receiving station prior to the sending station starting communications. The access point sends RTS frames to a receiving station to negotiate the

5-41

System Configuration

sending of a data frame. After receiving an RTS frame, the station sends a CTS (clear to send) frame to notify the sending station that it can start sending data.

If the RTS threshold is set to 0, the access point never sends RTS signals. If set to 2347, the access point always sends RTS signals. If set to any other value, and the packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send / Clear to Send) mechanism will be enabled.

The access points contending for the medium may not be aware of each other. The RTS/CTS mechanism can solve this “Hidden Node Problem.” (Range: 0-2347 bytes: Default: 2347 bytes)

CLI Commands for the 802.11a Wireless Interface – From the global configuration mode, enter the interface wireless a command to access the 802.11a radio interface. Set the interface SSID using the ssid command and, if required, configure a name for the interface using the description command. Use the turbo command to enable this feature before setting the radio channel with the channel command. Set any other parameters as required. To view the current 802.11a radio settings, use the show interface wireless a command.

SMC-AP(config)#interface wireless a 6-68 Enter Wireless configuration commands, one per line. SMC-AP(if-wireless a)#description RD-AP#3 6-75 SMC-AP(if-wireless a)#ssid r&d 6-79 SMC-AP(if-wireless a)#turbo 6-78 SMC-AP(if-wireless a)#channel 42 6-77 SMC-AP(if-wireless a)#ssid-broadcast 6-75 SMC-AP(if-wireless a)#transmit-power full 6-87 SMC-AP(if-wireless a)#speed 9 6-76 SMC-AP(if-wireless g)#max-association 32 6-88 SMC-AP(if-wireless a)#beacon-interval 150 6-79 SMC-AP(if-wireless a)#dtim-period 5 6-80 SMC-AP(if-wireless a)#fragmentation-length 512 6-81 SMC-AP(if-wireless a)#rts-threshold 256 6-82 SMC-AP(if-wireless a)#end

5-42

Radio Interface

SMC-AP#show interface wireless a 6-95

Wireless Interface 802.11a Information ==========================================================

----------------Identification---------------------------Description : Enterprise 802.11a Access Point SSID : r&d Turbo Mode : ON Channel : 42 (AUTO) Status : Enable

----------------802.11 Parameters------------------------Transmit Power : FULL (17 dBm) Max Station Data Rate : 9Mbps Fragmentation Threshold : 512 bytes RTS Threshold : 256 bytes Beacon Interval : 150 TUs DTIM Interval : 5 beacons Maximum Association : 32 stations

----------------Security---------------------------------SSID Broadcast : ENABLED Multicast cipher : WEP WPA clients : SUPPORTED Encryption : DISABLED Default Transmit Key : 1 Static Keys : Key 1: EMPTY Key 2: EMPTY Key 3: EMPTY Key 4: EMPTY Authentication Type : OPEN ========================================================== SMC-AP#

5-43

System Configuration

Radio Settings (802.11g)

The IEEE 802.11g standard operates within the 2.4 GHz band at up to 54 Mbps. Also note that because the IEEE 802.11g standard is an extension of the IEEE 802.11b standard, it allows clients with 802.11b wireless network cards to associate to an

802.11g access point.

Enable – Enables radio communications on the SMC2555W-AG. (Default: Enabled)

Radio Channel – The radio channel that the access point uses to communicate with wireless cl ien ts. When multip le ac ces s points are deployed in the same area, set the channel on neighboring

5-44

SMC Networks SMC2555W-AG User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Package Checklist

Hardware Description

Component Description

Antennas

LED Indicators

Security Slot

Console Port

Ethernet Port

Reset Button

Features and Benefits

Power Connector

Applications

System Defaults

Network Topologies

Ad Hoc Wireless LAN (no AP or Bridge)

Infrastructure Wireless LAN

Infrastructure Wireless LAN for Roaming Wireless PCs

Initial Setup through the CLI

Required Connections

Initial Configuration Steps

Advanced Configuration

System Identification

TCP / IP Settings

Radius

Authentication

Filter Control

SNMP

Administration

Changing the Password

Upgrading Firmware

System Log

Enabling System Logging

Configuring SNTP

Radio Interface

Radio Settings (802.11a)

Radio Settings (802.11g)