CCNP<sup>®</sup>: Building Cisco Remote Access Networks Study Guide (Exam 642-821),9780782142969

CCNP®: Building Cisco Remote Access Networks Study Guide (Exam 642-821)

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Edition: 3rd
ISBN13: 9780782142969
ISBN10: 0782142966
Format: Paperback
Pub. Date: 2003-12-01
Publisher(s): Sybex
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Summary

Here's the book you need to prepare the latest Building Cisco Remote Access Networks (BCRAN) exam, 642-821. This Study Guide provides: * In-depth coverage of key exam topics * Practical information on planning, configuring, and troubleshooting Cisco remote access networks * Hundreds of challenging review questions * Leading-edge exam preparation software, including a test engine, sample simulation questions, and electronic flashcards Authoritative coverage of all exam objectives, including: * Providing remote access to a network with asynchronous dial-in, Frame Relay, ISDN, cable modem, and DSL * Managing traffic flow on WAN links * Using PPP as an access and encapsulation method * Configuring access control to manage and limit remote access * Configuring VPN operation using Cisco IOS * Configuring Network Address Translation (NAT) * Planning a Cisco ISDN solution for remote access or primary link back-up * Design a Cisco frame relay infrastructure * Troubleshooting non-functional remote access systems * Troubleshooting traffic control problems on a WAN link

Table of Contents

Introduction xix
Assessment xxxi
Chapter 1 Cisco Solutions for Remote Access 1(48)
What Is Remote Access?
2(21)
WAN Connection Types
3(11)
WAN Encapsulation Protocols
14(2)
Selecting a WAN Protocol
16(7)
Choosing Remote Connection Cisco Products
23(3)
Fixed Interfaces
24(1)
Modular Interfaces
25(1)
Product Selection Tools
25(1)
Cabling and Assembling the WAN
26(13)
Internetworking Overview and Remote Access Interface Options
26(2)
Identifying Company Site Equipment
28(7)
Verifying a Network Installation
35(4)
Summary
39(1)
Exam Essentials
39(2)
Key Terms
41(1)
Written Lab
42(1)
Review Questions
43(3)
Answers to Written Lab
46(1)
Answers to Review Questions
47(2)
Chapter 2 Asynchronous Connections 49(28)
Understanding Asynchronous Modems
50(8)
Signaling and Cabling
53(2)
Modulation Standards
55(3)
Configuring Asynchronous Modem Connections
58(7)
Automatic Configuration
58(4)
Manual Configuration
62(3)
Summary
65(1)
Exam Essentials
66(1)
Key Terms
67(1)
Written Lab
68(1)
Hands-on Labs
68(3)
Lab 1
68(1)
Lab 2
69(2)
Review Questions
71(3)
Answers to Written Lab
74(1)
Answers to Review Questions
75(2)
Chapter 3 Point-to-Point Protocol 77(44)
PPP Overview and Architecture
78(4)
The Flag Field
79(1)
The Address Field
80(1)
The Control Field
80(1)
The Protocol Field
80(2)
The Information Field
82(1)
The Frame Check Sequence (FCS) Field
82(1)
Configuring Access Servers
82(9)
Configuring PPP
82(1)
Dedicated or Interactive PPP
83(1)
Interface Addressing Options for Local Devices
83(8)
PAP and CHAP Authentication
91(2)
Password Authentication Protocol (PAP)
91(1)
Challenge Handshake Authentication Protocol (CHAP)
92(1)
PPP Callback
93(4)
PPP Compression and Multilink
97(4)
Compression Configuration
98(1)
Multilink Configuration
99(2)
Verifying and Troubleshooting PPP
101(8)
The debug ppp authentication Command
101(1)
The debug ppp negotiation Command
102(4)
The debug ppp packet Command
106(3)
Summary
109(1)
Exam Essentials
110(1)
Key Terms
111(1)
Written Lab
111(1)
Hands-on Lab
112(2)
Lab 3.1: PPP and DHCP Configuration
112(2)
Review Questions
114(3)
Answers to Written Lab
117(1)
Answers to Review Questions
118(3)
Chapter 4 Using Microsoft Windows 95/98/2000/XP 121(26)
Reasons to Use Dial-Up Networking
122(1)
Configuring Dial-Up Networking with Windows 95/98
123(1)
Configuring a Dial-Up Connection Client
124(11)
Dial-Up Networking Application
124(1)
Make New Connection Wizard
125(2)
Connection Properties
127(8)
Setting Additional Configuration Options
135(2)
Lock DTE Speed
135(1)
Launch Terminal Windows
136(1)
Verifying a Dial-Up Connection
137(1)
Summary
137(1)
Exam Essentials
138(1)
Key Terms
139(1)
Written Lab
139(1)
Review Questions
140(4)
Answers to Review Questions
144(1)
Answers to Written Lab
145(2)
Chapter 5 Integrated Services Digital Network (ISDN) 147(64)
What Is Integrated Services Digital Network (ISDN)?
149(1)
ISDN Line Options
150(4)
Basic Rate Interface (BRI)
151(2)
Primary Rate Interface (PRI)
153(1)
ISDN Function Groups
154(1)
ISDN Reference Points
155(1)
ISDN Protocols
156(1)
LAPD Frames
157(3)
Layer 2 Negotiation
160(3)
ISDN Call Setup and Teardown
163(3)
ISDN Configuration
166(5)
Authentication
171(4)
Password Authentication Protocol (PAP)
171(2)
Challenge Handshake Authentication Protocol (CHAP)
173(2)
Dial-on-Demand Routing (DDR)
175(6)
Configuring DDR
176(3)
Using Optional Commands
179(1)
Using DDR with Access Lists
179(1)
Verifying the ISDN Operation
180(1)
Dial Backup
181(9)
Setting Up Dial Backup
181(2)
Testing the Backup
183(7)
Bandwidth on Demand
190(2)
Channelized T-1/E-1 (PRI)
192(3)
Configuring ISDN PRI
192(2)
Configuring E-1
194(1)
Summary
195(1)
Exam Essentials
195(1)
Key Terms
196(1)
Written Lab
197(1)
Hands on Labs
197(7)
Lab 5.1: DDR
197(3)
Lab 5.2: Configuring PRI and BRI
200(4)
Review Questions
204(4)
Answers to Review Questions
208(1)
Answers to Written Lab
209(2)
Chapter 6 Remote Access with Digital Subscriber Line 211(20)
What is Digital Subscriber Line?
212(1)
The Different Flavors of DSL
213(4)
Asymmetric Digital Subscriber Line
214(1)
G.lite
215(1)
High Bit-Rate DSL
216(1)
Symmetric DSL
216(1)
ISDN DSL
216(1)
Very-High Data Rate DSL
216(1)
Cisco DSL Routers
217(1)
Configuring DSL
218(2)
Troubleshooting DSL
220(1)
Summary
221(1)
Exam Essentials
222(1)
Key Terms
223(1)
Written Lab
223(1)
Hands-on Lab
223(1)
Review Questions
224(4)
Answers to Written Lab
228(1)
Answer to Hands-on Lab
228(1)
Answers to Review Questions
229(2)
Chapter 7 Remote Access with Cable Modems and Virtual Private Networks 231(20)
What is a Cable Modem?
232(2)
DOCSIS
233(1)
Cisco's Cable Modem Product Line
234(1)
Cisco Cable Manager
235(1)
Virtual Private Networks
235(5)
IPSec
235(5)
Summary
240(1)
Exam Essentials
241(1)
Key Terms
241(1)
Written Lab
242(1)
Hands-On Lab
242(2)
Review Questions
244(3)
Answers to Written Lab
247(1)
Answer to Hands-on Lab
248(2)
Answers to Review Questions
250(1)
Chapter 8 Frame Relay 251(40)
Understanding Frame Relay.
252(1)
What is Frame Relay?
252(1)
A Brief History of Frame Relay
253(1)
Frame Relay Virtual Circuits
253(2)
Switched Virtual Circuits
254(1)
Permanent Virtual Circuits
255(1)
Data Link Connection Identifier (DLCI)
255(3)
DCLI Mapping
256(2)
Frame Relay Local Management Interface (LMI)
258(1)
Configuring Frame Relay
259(1)
Frame Relay Congestion Control
260(3)
Factors Affecting Performance
260(1)
Congestion Handling by Frame Relay Switches
261(1)
Congestion Handling by Routers
262(1)
Point-to-Point and Multipoint Interfaces
263(3)
Verifying Frame Relay
266(4)
The show interface Command
266(1)
The show frame-relay pvc Command
267(1)
The show frame-relay map Command
268(1)
The show frame-relay lmi Command
269(1)
The debug frame-relay lmi Command
269(1)
Frame Relay Switching
270(4)
Frame Relay Switching Commands
271(3)
Frame Relay Traffic Shaping
274(3)
Using Traffic Shaping Techniques
274(1)
Configuring Traffic Shaping
275(2)
Summary
277(1)
Exam Essentials
278(1)
Key Terms
279(1)
Written Lab
279(1)
Hands-on Labs
280(3)
Lab 8.1: Configuring Frame Relay with Subinterfaces
280(2)
Lab 8.2: Frame Relay Traffic Shaping
282(1)
Review Questions
283(4)
Answers to Written Lab
287(2)
Answer to Review Questions
289(2)
Chapter 9 Queuing and Compression 291(34)
Queuing
292(2)
Traffic Prioritization
293(1)
Queuing Policy
293(1)
IOS Queuing Options
294(14)
Weighted Fair Queuing
295(3)
Priority Queuing
298(3)
Custom Queuing
301(7)
Cisco's Newer Queuing Technologies
308(2)
Low Latency Queuing
309(1)
Class-Based Weighted Fair Queuing
309(1)
Committed Access Rate
310(1)
Compression
310(4)
TCP Header Compression
311(1)
Payload Compression
312(1)
Link Compression
312(1)
Compression Considerations
313(1)
Viewing Compression Information
314(1)
Summary
314(1)
Exam Essentials
315(1)
Key Terms
316(1)
Written Lab
316(1)
Hands-on Lab
317(2)
Lab 9.1: Queuing
317(2)
Review Questions
319(3)
Answers to Written Lab
322(1)
Answers to Review Questions
323(2)
Chapter 10 Network Address Translation (NAT) and Port Address Translation (PAT) 325(34)
Understanding Network Address Translation (NAT)
327(4)
NAT Terminology
327(1)
How NAT Works
328(1)
Advantages of NAT
329(1)
Disadvantages of NAT
330(1)
NAT Traffic Types
330(1)
Performing NAT Operations
331(5)
Translating Inside Local Addresses
332(1)
Overloading Inside Global Addresses
333(1)
Using TCP Load Distribution
334(1)
Overlapping Networks
335(1)
Configuring NAT
336(8)
Configuring Static NAT
337(1)
Configuring Dynamic NAT, Inside Global Address Overloading, and TCP Load Distribution
338(2)
Configuring NAT to Perform Overlapping Address Translator
340(1)
Verifying NAT Configuration
341(1)
Troubleshooting NAT
342(1)
Clearing NAT Translation Entries
343(1)
Using Port Address Translation (PAT)
344(4)
Disadvantages of PAT
344(1)
Configuring PAT
345(2)
Monitoring PAT
347(1)
Summary
348(1)
Exam Essentials
348(1)
Key Terms
349(1)
Written Lab
349(1)
Hands-on Lab
350(2)
Lab 10.1: Static NAT
350(2)
Review Questions
352(4)
Answers to Written Lab
356(1)
Answers to Review Questions
357(2)
Chapter 11 Centralized Security in Remote Access Networks 359(28)
Security Terminology
360(1)
Cisco Access Control Solutions
361(2)
CiscoSecure
362(1)
Authentication, Authorization, and Accounting
363(2)
How AAA Works
364(1)
Router Access Modes
365(2)
Character-Mode Connections
365(1)
Packet-Mode Connections
366(1)
AAA Configuration
367(9)
Authentication Configuration
368(2)
Authorization Configuration
370(4)
Accounting Configuration
374(2)
Virtual Profiles
376(1)
Summary
377(1)
Exam Essentials
377(1)
Key Terms
378(1)
Written Lab
378(1)
Hands-on Lab
379(1)
Configuring TACACS+
379(1)
Review Questions
380(4)
Answers to Written Lab
384(1)
Answers to Review Questions
385(2)
Glossary 387(20)
Index 407

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