Building a Cisco Wireless Lan

by Ouellet, Eric; Padjen, Robert; Pfund, Arthure; Fuller, Ron; Blankenship, Tim

• ISBN13: 9781928994589
• ISBN10: 192899458X
• Format: Paperback
• Copyright: 2002-05-01
• Publisher: Elsevier Science Ltd

Summary

"Building a Cisco Wireless LAN" will be useful to anyone designing and supporting a Cisco wireless LAN. The book explains how to create thorough and accurate network designs for the Cisco 340, 350, and UBR 7200 series; discusses configuration and troubleshooting of a Cisco WLAN installation; and offers an introduction to wireless technology from the fundamentals to implementation.

Table of Contents

Foreword	xxv
Introduction to Wireless Local Area Networks	1	(30)
Introduction	2	(1)
Reviewing Networking Basics	3	(6)
Defining Topologies	3	(1)
Bus Topology	4	(1)
Star Topology	4	(1)
Ring Topology	4	(1)
Mesh Topology	5	(1)
CSMA/CD versus Deterministic Access	6	(1)
Cabling	7	(2)
Understanding How Wireless Fits into the OSI System Model	9	(11)
Tracking Data through the OSI System Model	13	(1)
OSI and Wireless: Layer 2 and Down	14	(6)
OSI and Wireless: Layer 3 and Up	20	(1)
Review of TCP/IP Basics	20	(7)
Understanding TCP/IP Addressing	21	(4)
TCP	25	(1)
UDP	26	(1)
Summary	27	(1)
Solutions Fast Track	28	(1)
Frequently Asked Questions	29	(2)
Wireless LAN Overview	31	(62)
Introduction	32	(1)
Understanding the Fundamentals of Radio Frequency	32	(16)
Wireless Radio Signal Transmission and Reception	34	(3)
Frequency	37	(3)
Bandwidth	40	(1)
WLAN Frequency Bands	41	(1)
Modulation	42	(2)
Phase Modulation	44	(4)
Communicating with Wireless LAN Technologies	48	(7)
Microwave Technology	48	(1)
Infrared Technology	49	(1)
Spread Spectrum Technology	50	(2)
Synchronization	52	(1)
Frequency Hopping	52	(1)
Direct Sequence Spread Spectrum (DSSS)	53	(1)
DSSS Channel Setup	54	(1)
Spectrum Technology Comparisons: Frequency Hopping versus Direct Sequence	55	(1)
Implementing a Wireless LAN Architecture	55	(6)
The OSI Reference Model	56	(3)
Logical Wireless System Components	59	(1)
Distribution System	59	(1)
Medium Access Technique	59	(1)
Synchronization and Error Control	60	(1)
Routing Mechnisms	60	(1)
Application Interface	60	(1)
Physical Wireless System Components	60	(1)
Medium	60	(1)
Access Point (AP)	60	(1)
Antenna	61	(1)
Wireless Station	61	(1)
Server	61	(1)
Keeping Pace with Wireless Networking Standards	61	(27)
Institute of Electrical and Electronic Engineers (IEEE)	62	(4)
802.11	66	(11)
802.11b	77	(2)
802.11a	79	(1)
Other Related Working Groups	80	(1)
European Telecommunications Standards Institute (ETSI)	81	(5)
Wireless Ethernet Compatibility Alliance (WECA)	86	(1)
WLAN Interoperability Forum (WLIF)	87	(1)
Infrared Data Association	87	(1)
Summary	88	(1)
Solutions Fast Track	89	(2)
Frequently Asked Questions	91	(2)
Cisco Wireless LAN Product Line	93	(38)
Introduction	94	(1)
Overview of Cisco Wireless Systems	95	(4)
Cisco's WLAN Product Line	95	(1)
Using WLANs for Individual User Connectivity	96	(1)
Using WLANs to Connect Compuses	97	(2)
Cisco's Aironet 3XO Series APs and Bridges	99	(16)
The Cisco Aironet 350 Series	99	(1)
Features Common to All 350 Series Devices	99	(4)
Individual 350 Series Device Features	103	(7)
Features of the Cisco Aironet 340 Series	110	(1)
Individual 340 Series Device Features	110	(5)
Cisco's Aironet Wireless NICs	115	(2)
Cisco Aironet Antennas	117	(8)
Ceiling Mount Omni-Directional Antenna	120	(1)
Mast Mount Omni-Directional Antenna	120	(1)
High-Gain Mast Mount Omni-Directional Antenna	120	(1)
Pillar Mount Diversity Omni-Directional Antenna	121	(1)
POS Diversity Dipole Omni-Directional Antenna	121	(1)
Diversity Ceiling Mount Omni-Directional Patch Antenna	121	(1)
Directional Wall Mount Patch Antenna	122	(1)
Diversity Directional Wall Mount Patch Antenna	122	(1)
Yagi Antenna	123	(1)
Dish Antenna	123	(2)
Summary	125	(2)
Solutions Fast Track	127	(2)
Frequently Asked Questions	129	(2)
Wireless Network Design	131	(78)
Introduction	132	(1)
Wireless Planning Considerations	132	(11)
Wireless Benefits and Limitations	134	(1)
What Type of Data Will Be Traversing the Wireless Network?	134	(1)
How Much Data Will Be Traversing the Wireless Network?	135	(1)
What Is the Return On Investment for Your Wireless Implementation?	136	(1)
How Does Mobility Factor into Determining if Wireless Is Right for Your Business?	136	(1)
Does Your Business or Corporation Have Any Restrictions That Would Prohibit You from Implementing a Wireless LAN Solution?	137	(1)
Mobility	138	(1)
Throughput versus Data Rate and Load	139	(2)
Cost and Return on Investment	141	(2)
Wireless Design Considerations	143	(15)
Attenuation	143	(1)
Attenuation Due to Antenna Cabling	144	(1)
Attenuation Due to Exterior Considerations	144	(5)
Accounting for the Fresnel Zone and Earth Bulge	149	(1)
Radio Frequency Interference	150	(1)
Interference from Radio Transmitters	151	(1)
Harmonics	152	(1)
Application Considerations	152	(1)
Structural Considerations	153	(3)
Andromeda Manufacturing Rough Design	156	(1)
Wireless Design 1	157	(1)
Wireless Design 2	157	(1)
Performing a Wireless Site Survey	158	(37)
Preparation	159	(1)
Sample Pre-Site Survey Form	160	(2)
Other Preparations	162	(4)
Infrastructure Awareness	166	(1)
What Types of Network Media Are Used?	166	(2)
What Operating Systems, Protocols, and Drivers Are Used?	168	(1)
What Hubs Are Used?	168	(1)
What Switches Are Used?	168	(1)
What Routers Are Used?	169	(1)
What Bridges Are Used?	169	(1)
How Is Power Supplied?	170	(1)
Preparing a Site Survey Kit	170	(1)
Using Client Adapters in the Survey	171	(1)
Using APs and Bridges in the Survey	172	(1)
Choosing Antennas for the Survey	173	(1)
Providing Battery Packs and Inverters for the Survey	174	(1)
Providing Tools for the Survey	175	(3)
Bringing Temporary Mounting Equipment for the Survey	178	(2)
Performing an Interior Wireless Site Survey	180	(1)
Designing for Coverage	181	(2)
Designing Seamless Roaming	183	(1)
Considering Rate Shifting	184	(1)
Performing the Interior Survey	184	(2)
Using the Cisco Aironet Client Utility for Interior Site Surveys	186	(4)
Watching Your Power Consumption	190	(1)
Setting Your Service Set IDs	191	(1)
Interior Survey Problems	191	(2)
Performing an Exterior Wireless Site Survey	193	(2)
Wireless Design Examples	195	(9)
Warehouse Design Example 1	196	(1)
Warehouse Design Example 2	197	(1)
Warehouse Design Example 3	198	(1)
Retail Design Example	198	(1)
Education Design Example 1	199	(1)
Education Design Example 2	200	(1)
Point-to-Point Design Example 1	201	(1)
Point-to-Point Design Example 2	201	(2)
Point-to-Point Design Example 3	203	(1)
Summary	204	(1)
Solutions Fast Track	205	(1)
Frequently Asked Questions	206	(3)
Installation and Configuration of Cisco 340 and Cisco 350 Series Access Points	209	(44)
Introduction	210	(3)
Installation of the Cisco 340/350 Series AP	213	(6)
Specific Differences of the Cisco 350 Series AP	215	(1)
Power Requirements	216	(1)
Network Connectivity	217	(2)
Initial Configuration of the Cisco 340 and 350 Series AP	219	(4)
IP Setup Utility	220	(1)
Terminal Emulator Setup	221	(2)
Web-Based Configuration of the Cisco 340 and 350 Series APs	223	(18)
Configuring the Cisco 340 and 350 Series APs	223	(1)
Configuring the Web Interface	224	(1)
Configuring a Name Server	224	(1)
The Radio Hardware Setting	224	(3)
The AP Radio Port Status Screen	227	(1)
Setting the Time	227	(1)
User Accounts	228	(1)
Setting the WEP Key	229	(3)
Accounting Setup	232	(1)
Hot Standby	233	(1)
Publicly Secure Packet Forwarding	233	(1)
Troubleshooting the Cisco 340 and 350 Series APs	234	(7)
Web-Based Configuration of the Cisco 340 BSE/BSM Series AP	241	(6)
Configuring the Cisco 340 BSE/BSM Series AP	242	(4)
Troubleshooting the Cisco 340 BSE/BSM Series AP	246	(1)
Summary	247	(1)
Solutions Fast Track	248	(1)
Frequently Asked Questions	249	(4)
Installation and Configuration of Cisco Aironet Bridges	253	(76)
Introduction	254	(8)
Understanding the Role of Traditional Network Bridges	254	(2)
Types of Network Bridges	256	(3)
Comparing Traditional Bridges with Wireless Bridges	259	(1)
Cisco Aironet Wireless Bridge---Point to Point	260	(1)
Cisco Aironet Wireless Bridge---Point-to-Multipoint	261	(1)
Cisco Wireless Bridge---Repeater	261	(1)
Installation of the Cisco Aironet Bridge Unit	262	(11)
Installing the Antenna	263	(1)
DSSS (Direct Sequence Spread Spectrum)	263	(2)
Configuring the Network Port	265	(1)
Configuring the Console Port	266	(1)
Applying Power	267	(1)
Working with Root and Non-Root Modes on a Wireless Bridge	267	(2)
Overview of the Spanning Tree Protocol	269	(4)
Initial Setup of the Cisco Aironet Wireless Bridge	273	(6)
Configuring the Bridge Using the Command-Line Interface	273	(1)
Configuring the Bridge Using the Command Menus	273	(2)
General Configuration Recommendations and Notes	275	(1)
Performing the Initial Configuration	275	(1)
Assigning the Radio Parameters	276	(1)
Assigning IP Information	277	(2)
Operational Configuration of the Cisco Aironet Wireless Bridge	279	(24)
Console Access	279	(1)
Telnet Access	279	(1)
Web Browser Access	280	(1)
Using the Cisco Aironet Wireless Bridge Radio Main Menu	281	(1)
Configuring the Basic Rates Options	282	(1)
Configuring the Frequency Option	282	(1)
Configuring the IEEE 802.11 Options	282	(6)
Configuring the LinkTests Options	288	(1)
Configuring the Extended Options	288	(4)
Configuring the Ethernet Port	292	(1)
Configuring the Network Identifiers	292	(2)
Console Management Access	294	(1)
Configuring Passwords	294	(1)
Configuring Privileges	295	(1)
SNMP Support	295	(1)
Configuring the Time Service	296	(1)
Setting Up Association Tables	297	(3)
Using Filters	300	(1)
Configuring the Multicast Option	300	(1)
Configuring the Node Option	301	(1)
Configuring the Protocols Option	302	(1)
Event Logging	303	(2)
Viewing Statistics	305	(4)
Throughput Option	306	(1)
Radio Option	306	(1)
Ethernet Option	307	(1)
Status Option	308	(1)
Map Option	308	(1)
Watch Option	308	(1)
History Option	308	(1)
Node Option	308	(1)
ARP Option	309	(1)
Display Time Option	309	(1)
Ipadr Option	309	(1)
Cisco Aironet Wireless Bridge Troubleshooting	309	(11)
Network Menu Option	310	(1)
Connect Option	310	(1)
Escape Option	310	(1)
Find Option	311	(1)
Ping Option	311	(1)
Linktest Menu Options	311	(3)
Restart Option	314	(1)
Default and Reset Options	314	(1)
Loading Firmware and Configurations	314	(1)
Xmodem and Crc-xmodem	315	(1)
FTP---File Transfer Protocol	315	(2)
Distribute	317	(1)
BOOTP and DHCP	318	(1)
Class	318	(1)
Backing Up Wireless Bridge Configurations	318	(2)
Summary	320	(3)
Solutions Fast Track	323	(4)
Frequently Asked Questions	327	(2)
Installation and Configuration of Cisco Wireless Network Cards	329	(46)
Introduction	330	(1)
Cisco Aironet Client Adapter Types	331	(2)
Comparing the Cisco Aironet 340 and 350 Series Wireless LAN Adapters	331	(2)
Cisco Aironet Client Utility (ACU)	333	(7)
Installing and Configuring the Cisco Aironet LAN Adapter Card	334	(1)
Installing the Cisco ACU	335	(1)
Cisco Aironet Client Profile Manager	336	(1)
Creating a New Aironet Client Profile	337	(1)
Using an Existing Aironet Client Profile	337	(1)
Modifying an Existing Aironet Client Profile	338	(1)
Reconfiguring Profiles with the Default Aironet Client Profile Values	338	(1)
Renaming Profiles Stored within the ACU	338	(1)
Deleting Profiles Stored within the ACU	338	(1)
Importing Profiles to the ACU	338	(1)
Exporting Profiles from the ACU	339	(1)
Restricting Profile Access to Administrative Users	339	(1)
Cisco Aironet Client Installation and Configuration	340	(11)
Configuring the Cisco Aironet Client System Parameter	341	(1)
Setting the Client Name	341	(1)
Setting the SSID	341	(1)
Setting Power Save Mode	342	(1)
Setting the Network Type	342	(1)
Cisco Aironet Client RF Network Configuration	343	(1)
Configuring the Data Rate	344	(1)
Choosing Radio Headers	345	(1)
Setting World Mode	345	(1)
Selecting the Power Level	345	(1)
Setting the Data Retries Value	346	(1)
Selecting Maximum Packet Size	346	(1)
Configuring the Cisco Aironet Client: Advanced (Infrastructure)	346	(1)
Antenna Mode (Receive) / Antenna Mode (Transmit)	347	(1)
Specified AP	348	(1)
RTS Threshold	348	(1)
RTS Retry Limit	348	(1)
Cisco Aironet Client Advanced Ad Hoc Configuration	348	(1)
Antenna Mode (Receive) / Antenna Mode (Transmit)	349	(1)
RTS Threshold	350	(1)
RTS Retry Limit	350	(1)
Wake Duration (Kms)	350	(1)
Beacon Period (Kms)	351	(1)
Cisco Aironet Client Network Security Configuration	351	(2)
Setting the Security Parameters	352	(1)
Allow Association to Mixed Cells	353	(1)
Client Adapter Auto Installer	353	(4)
Using the Auto Installer	354	(1)
Installation Configuration File Field Definition	354	(3)
Client Adapter Diagnostics	357	(10)
Configuring ACU Diagnostics Preferences	357	(1)
Displaying the Current Status	358	(1)
Displaying the Operational Statistics	358	(3)
Displaying the Link Status Meter	361	(1)
Signal Strength Indicator	362	(1)
Signal Quality Indicator	362	(1)
Signal Status Line	362	(1)
Performing a Radio Frequency Link Test	362	(2)
Client Adapter Indicator LEDs	364	(1)
LED Display Patterns	364	(3)
Summary	367	(2)
Solutions Fast Track	369	(3)
Frequently Asked Questions	372	(3)
Cisco Wireless Security	375	(72)
Introduction	376	(1)
Understanding Security Fundamentals and Principles of Protection	377	(21)
Ensuring Confidentiality	377	(2)
Ensuring Integrity	379	(1)
Ensuring Availability	380	(1)
Ensuring Privacy	381	(1)
Ensuring Authentication	381	(4)
Extensible Authentication Protocol (EAP)	385	(4)
An Introduction to the 802.1x Standard	389	(3)
Per-Packet Authentication	392	(1)
Cisco Light Extensible Authentication Protocol (LEAP)	393	(2)
Configuration and Deployment of LEAP	395	(1)
Ensuring Authorization	396	(2)
MAC Filtering	398	(9)
What Is a MAC Address?	398	(1)
Where in the Authentication / Association Process Does MAC Filtering Occur?	399	(1)
Determining MAC Filtering Is Enabled	400	(1)
MAC Spoofing	400	(1)
Ensuring Non-Repudiation	401	(3)
Accounting and Audit Trails	404	(1)
Using Encryption	405	(1)
Encrypting Voice Data	406	(1)
Encrypting Data Systems	407	(1)
Reviewing the Role of Policy	407	(10)
Identifying Resources	409	(2)
Understanding Classification Criteria	411	(1)
Implementing Policy	412	(3)
Addressing the Issues with Policy	415	(2)
Implementing WEP	417	(6)
Defining WEP	417	(1)
Creating Privacy with WEP	418	(1)
The WEP Authentication Process	419	(1)
WEP Benefits and Advantages	419	(1)
WEP Disadvantages	420	(1)
The Security Implications of Using WEP	420	(1)
Implementing WEP on the Cisco Aironet AP 340	420	(1)
Exploiting WEP	421	(1)
Security of 64-Bit versus 128-Bit Keys	422	(1)
Acquiring a WEP Key	422	(1)
Addressing Common Risks and Threats	423	(4)
Finding a Target	424	(1)
Finding Weaknesses in a Target	424	(2)
Exploiting Those Weaknesses	426	(1)
Sniffing, Interception, and Eavesdropping	427	(3)
Defining Sniffing	427	(1)
Sample Sniffing Tools	427	(1)
Sniffing Case Scenario	428	(2)
Protecting Against Sniffing and Eavesdropping	430	(1)
Spoofing and Unauthorized Access	430	(2)
Defining Spoofing	430	(1)
Sample Spoofing Tools	431	(1)
Protecting Against Spoofing and Unauthorized Attacks	432	(1)
Network Hijacking and Modification	432	(3)
Defining Hijacking	432	(2)
Sample Hijacking Tools	434	(1)
Hijacking Case Scenario	434	(1)
Protection against Network Hijacking and Modification	434	(1)
Denial of Service and Flooding Attacks	435	(3)
Defining DoS and Flooding	435	(1)
Sample DoS Tools	436	(1)
DoS and Flooding Case Scenario	436	(1)
Protecting Against DoS and Flooding Attacks	437	(1)
Summary	438	(1)
Solutions Fast Track	439	(5)
Frequently Asked Questions	444	(3)
Cisco Aironet Accessories	447	(30)
Introduction	448	(1)
Antenna Accessories	449	(3)
Yagi Articulating Mount	449	(1)
Magnetic Mount	450	(1)
Lightning Arrestor with Grounding Ring	450	(2)
Bridge and Access Point Accessories	452	(10)
Bridge Mounting Kit	452	(2)
Bridge Slide Mount Kit	454	(3)
Access Point / Bridge Spare Power Supplies	457	(1)
Access Point / Bridge Serial Cable	458	(2)
NEMA Enclosures	460	(2)
Cabling, Connectors, and Bulkhead Extenders	462	(7)
Cabling	463	(1)
RG-58 and RG-8 Cabling	464	(1)
9913 Cabling	464	(3)
Connectors	467	(1)
R P-TNC Connectors	467	(1)
Bulkhead Extenders	468	(1)
Radio Country Options	469	(3)
Summary	472	(1)
Solutions Fast Track	473	(2)
Frequently Asked Questions	475	(2)
Index	477