Cisco CCNP Remote Access Exam Certification Guide (Cisco Career Certifications)

Brian Morgan, Cisco Press

ISBN:1587200031, Edition: 1, 2000-12-21

Price: $49.95

Contents

Introduction ~ xxi
Goals and Methods ~ xxi
Who Should Read This Book? ~ xxi
Strategies for Exam Preparation ~ xxii
How This Book Is Organized ~ xxii
Approach ~ xxiv
Icons Used in This Book ~ xxv
Command Syntax Conventions ~ xxvi

Chapter ~ 1
All About the Cisco Certi.ed Network Professional and Design Professional Certification ~ 3
How This Book Can Help You Pass the CCNP Remote Access Exam ~ 4
Overview of Cisco Certifications ~ 5
The Remote Access Exam and the CCNP and CCDP Certifications ~ 6
Exams Required for Certification ~ 7
Other Cisco Certifications ~ 8
What Is on the Remote Access Exam? ~ 9
Topics on the Exam ~ 9
Recommended Training Path for CCNP and CCDP ~ 11
How to Use This Book to Pass the Exam ~ 13
One Final Word of Advice ~ 14
You Have Passed Other CCNP Exams and Are Preparing for the Remote Access Exam ~ ~ 14
Scenario 1: You Have Taken the BCRAN Course ~ 14
Scenario 2: You Have NOT Taken the BCRAN Course ~ 14
You Have Passed the CCNA and Are Preparing for the Remote Access Exam ~ 15
Scenario 1: You Have Taken the BCRAN Course ~ 15
Scenario 2: You Have NOT Taken the BCRAN Course ~ 16
You Have Experience and Want to Skip the Classroom Experience and Take the Remote Access Exam ~ 16
Scenario 1: You Have CCNA Certification ~ 16
Scenario 2: You DO NOT Have a CCNA Certification ~ 17

Chapter ~ 2
Cisco Remote Connection Products ~ 19
How to Best Use This Chapter ~ 20
“Do I Know This Already?” Quiz ~ 21
Foundation Topics ~ 23
Router Selection Criteria for Remote Access Purposes ~ 23
Selecting a WAN Connection Type for Remote Access Purposes ~ 25
Determining the Site Requirements ~ 26
Central Site Installations ~ 26
Branch Office Installations ~ 26
Remote Office or Home Office Installations ~ 27
Hardware Selection ~ 27
Product Families: Capabilities and Limitations ~ 27
Foundation Summary ~ 34
Q&A ~ 36
Scenarios ~ 39
Scenario 2-1 ~ 39
Scenario 2-2 ~ 39
Scenario Answers ~ 40
Scenario 2-1 Answers ~ 40
Scenario 2-2 Answers ~ 40

Chapter ~ 3
Assembling and Cabling the WAN Components ~ 43
How to Best Use This Chapter ~ 43
“Do I Know This Already?” Quiz ~ 44
Foundation Topics ~ 47
Choosing WAN Equipment ~ 48
Central Site Router Selection ~ 48
3600 Router Series ~ 49
4000 Router Series ~ 50
AS5X00 Router Series ~ 50
7200 Router Series ~ 51
Branch Office Router Selection ~ 51
1600 Router Series ~ 52
1700 Router Series ~ 52
2500 Router Series ~ 52
2600 Router Series ~ 52
Small Office/Home Office (SOHO) Router Selection ~ 53
700 Router Series ~ 53
800 Router Series ~ 53
1000 Router Series ~ 53
Assembling and Cabling the Equipment ~ 54
Available Connections ~ 54
Verifying the Installation ~ 55
Central Site Router Verification ~ 56
3600 Router LEDs ~ 56
Branch Office Router Verification ~ 57
1600 Router LEDs ~ 57
SOHO Router Verification ~ 58
Foundation Summary ~ 60
Q&A ~ 61
Scenarios ~ 63
Scenario 3-1 ~ 63
Scenario Answers ~ 64
Scenario 3-1 Answers ~ 64

Chapter ~ 4
Con.guring Asynchronous Connections with Modems ~ 67
How to Best Use This Chapter ~ 67
“Do I Know This Already?” Quiz ~ 68
Foundation Topics ~ 72
Modem Signaling ~ 72
Data Transfer ~ 73
Data Flow Control ~ 73
Modem Control ~ 73
DTE Call Termination ~ 74
DCE Call Termination ~ 74
Modem Configuration Using Reverse Telnet ~ 74
Router Line Numbering ~ 75
Basic Asynchronous Configuration ~ 78
Logical Considerations on the Router ~ 79
Physical Considerations on the Router ~ 80
Configuration of the Attached Modem ~ 82
Modem Autoconfiguration and the Modem Capabilities Database ~ 82
Chat Scripts to Control Modem Connections ~ 84
Reasons for Using a Chat Script ~ 85
Reasons for a Chat Script Starting ~ 85
Using a Chat Script ~ 85
Foundation Summary ~ 87
Q&A ~ 90
Scenarios ~ 95

Chapter ~ 5
Con.guring PPP and Controlling Network Access ~ 97
How to Best Use This Chapter ~ 97
“Do I Know This Already?” Quiz ~ 98
Foundation Topics ~ 101
PPP Background ~ 101
PPP Architecture ~ 101
PPP Components ~ 102
PPP LCP ~ 104
Dedicated and Interactive PPP Sessions ~ 104
PPP Options ~ 105
PPP Authentication ~ 105
PAP ~ 106
CHAP ~ 107
PPP Callback ~ 109
PPP Compression ~ 111
Multilink PPP ~ 112
PPP Troubleshooting ~ 112
Foundation Summary ~ 114
Q&A ~ 115
Scenarios ~ 118
Scenario 5-1 ~ 118
Scenarion 5-2 ~ 119
Scenario 5-3 ~ 119
Scenario Answers ~ 120
Scenario 5-1 Answers ~ 120
Scenario 5-2 Answers ~ 121
Scenario 5-3 Answers ~ 122

Chapter ~ 6
Using ISDN and DDR Technologies ~ 125
How to Best Use This Chapter ~ 125
“Do I Know This Already?” Quiz ~ 126
Foundation Topics ~ 130
POTS Versus ISDN ~ 130
BRI and PRI Basics ~ 131
Basic Rate Interface ~ 131
BRI Protocols ~ 133
ISDN Layer 1 ~ 133
ISDN Layer 2 ~ 135
ISDN Layer 3 ~ 138
ISDN Call Setup ~ 139
ISDN Call Release ~ 141
Implementing Basic DDR ~ 141
Step 1: Setting the ISDN Switch Type ~ 142
Step 2: Specifying Interesting Traffic ~ 143
Specifying Interesting Traffic with Access Lists ~ 144
Step 3: Specifying Static Routes ~ 145
Step 4: Defining the Interface Encapsulation and ISDN Addressing Parameters ~ 146
Configuring ISDN Addressing ~ 146
Step 5: Configuring Protocol Addressing ~ 147
Step 6: Defining Additional Interface Information ~ 148
SPIDs ~ 148
Caller ID Screening ~ 148
Configuring Additional Interface Information ~ 148
Passive Interfaces ~ 149
Static Route Redistribution ~ 150
Default Routes ~ 151
Rate Adaptation ~ 152
Bandwidth on Demand ~ 153
Multilink PPP ~ 153
Troubleshooting Multilink PPP ~ 155
Advanced DDR Operations ~ 157
Using Dialer Profiles ~ 157
Rotary Groups ~ 159
Dial Backup ~ 161
Alternative Backup ~ 163
Dynamic Backup ~ 163
Static Backup ~ 164
Snapshot Routing ~ 165
Primary Rate Interface ~ 166
ISDN Switch Type ~ 167
T1/E1 Framing and Line Coding ~ 167
T1 Framing ~ 168
T1 Line Code ~ 170
E1 Framing ~ 171
E1 Line Code ~ 172
PRI Layers ~ 172
PRI Configuration ~ 172
PRI Incoming Analog Calls on Digital Modems ~ 174
Foundation Summary ~ 177
Q&A ~ 178
Scenarios ~ 183
Scenario 6-1 ~ 183
Scenario 6-2 ~ 185
Scenario 6-3 ~ 185
Scenario 6-4 ~ 186
Scenario Answers ~ 187
Scenario 6-1 Answers ~ 187
Scenario 6-2 Answers ~ 188
Scenario 6-3 Answers ~ 189
Scenario 6-4 Answers ~ 190

Chapter ~ 7
Con.guring a Cisco 700 Series Router ~ 193
How to Best Use This Chapter ~ 193
“Do I Know This Already?” Quiz ~ 194
Foundation Topics ~ 197
Cisco 700 Series Router Key Features and Functions ~ 197
Networking ~ 197
Routing and WAN ~ 198
ISDN and Telephony ~ 198
Cisco 700 Series Router Profiles ~ 198
LAN Profile ~ 199
Standard Profile ~ 199
Internal Profile ~ 199
System Profile ~ 199
Profile Use Guidelines ~ 199
Configuring the Cisco 700 Series Router for IP Routing ~ 200
Profile Configuration Commands for the Cisco 700 Series Routers ~ 203
Profile Management Commands for the Cisco 700 Series Routers ~ 205
Routing with the Cisco 700 Series Router ~ 205
DHCP Overview ~ 207
Using the Cisco 700 Series Router as a DHCP Server and Relay Agent ~ 208
Foundation Summary ~ 210
Q&A ~ 213
Scenarios ~ 217
Scenario 7-1 ~ 217
Scenario Answers ~ 218
Scenario 7-1 Answers ~ 218

Chapter ~ 8
Establishing an X.25 Connection ~ 221
How to Best Use This Chapter ~ 221
“Do I Know This Already?” Quiz ~ 222
Foundation Topics ~ 226
X.25 Basics ~ 226
DTE and DCE ~ 228
X.25 Layered Model ~ 229
X.25 Layer ~ 229
X.121 Addressing ~ 231
LAPB Layer ~ 232
X.25 Physical Layer ~ 233
Configuring X.25 ~ 233
Step 1: Setting the Interface Encapsulation, Specifying DCE or DTE ~ 234
Step 2: Configuring the X.121 Address ~ 234
Step 3: Mapping the Appropriate Next Logical Hop Protocol Address to its X.121 Address ~ 234
X.25 Configuration Examples ~ 235
Additional Configuration Options ~ 237
Configuring the Range of Virtual Circuits ~ 237
Configuring Packet Size ~ 238
Configuring Window Size ~ 238
Configuring Window Modulus ~ 239
X.25 Final Configuration ~ 239
Foundation Summary ~ 240
Q&A ~ 241
Scenarios ~ 245
Scenario 8-1: X.25 Initial Configuration ~ 245
Scenario 8-2: X.25 Options ~ 246
Scenario Answers ~ 247
Scenario 8-1 Answers ~ 247
Scenario 8-2 Answers ~ 248

Chapter ~ 9
Frame Relay Connection Controlling Traf.c Flow ~ 251
How to Best Use This Chapter ~ 251
“Do I Know This Already?” Quiz ~ 252
Foundation Topics ~ 257
Understanding Frame Relay ~ 257
Device Roles ~ 257
Frame Relay LMI ~ 258
Frame Relay Topologies ~ 259
Issues When Connecting Multiple Sites Through a Single Router Interface ~ 260
Resolving Split Horizon Problems ~ 261
Frame Relay Configuration ~ 263
Step 1: Determine the Interface to Be Configured ~ 263
Step 2: Configure Frame Relay Encapsulation ~ 264
Step 3: Configure Protocol-Specific Parameters ~ 264
Step 4: Configure Frame Relay Characteristics ~ 264
Verifying Frame Relay Configuration ~ 266
show frame-relay pvc Command ~ 267
show frame-relay lmi Command ~ 268
debug frame-relay lmi Command ~ 268
show frame-relay map Command ~ 269
Frame Relay Traffic Shaping ~ 270
Frame Relay Traffic Parameters ~ 270
FECN and BECN ~ 271
Using Frame Relay Traffic Shaping ~ 272
Frame Relay Traffic Shaping Configuration ~ 272
Foundation Summary ~ 276
Q&A ~ 279
Scenarios ~ 284
Scenario 9-1 ~ 284
Scenario 9-2 ~ 285
Scenario 9-3 ~ 285
Scenario Answers ~ 286
Scenario 9-1 Answers ~ 286
Scenario 9-2 Answers ~ 287
Scenario 9-3 Answers ~ 287

Chapter ~ 10
Managing Network Performance with Queuing and Compression ~ 291
How to Best Use This Chapter ~ 291
“Do I Know This Already?” Quiz ~ 292
Foundation Topics ~ 296
Queuing Overview ~ 296
FIFO ~ 298
Weighted Fair Queuing ~ 298
Configuring WFQ ~ 299
Priority Queuing ~ 300
Configuring Priority Queuing ~ 301
Custom Queuing ~ 306
Configuring Custom Queuing ~ 308
Verifying Custom Queuing ~ 312
Compression Overview ~ 312
Link Compression ~ 314
STAC ~ 314
Predictor ~ 314
Payload Compression ~ 315
TCP Header Compression ~ 315
Compression Issues ~ 316
Configuring Compression ~ 316
Foundation Summary ~ 317
Q&A ~ 319
Scenarios ~ 324
Scenario 10-1 ~ 324
Scenario 10-2 ~ 325
Scenario 10-3 ~ 325
Scenario 10-4 ~ 326
Scenario Answers ~ 327
Scenario 10-1 Answers ~ 327
Scenario 10-2 Answers ~ 327
Scenario 10-3 Answers ~ 328
Scenario 10-4 Answers ~ 329

Chapter ~ 11
Scaling IP Addresses with NAT ~ 331
How to Best Use This Chapter ~ 331
“Do I Know This Already?” Quiz ~ 332
Foundation Topics ~ 336
Characteristics of NAT ~ 336
Simple NAT Translation ~ 338
Overloading ~ 338
Overlapping Networks ~ 339
TCP Load Distribution ~ 340
NAT Definitions ~ 342
NAT Configurations ~ 343
Simple Dynamic NAT Configuration ~ 344
Static NAT Configuration ~ 345
NAT Overloading Configuration ~ 346
NAT Overlapping Configuration ~ 347
NAT TCP Load Distribution Configuration ~ 349
Verification of NAT Translation ~ 350
Port Address Translation ~ 352
Foundation Summary ~ 355
Q&A ~ 356
Scenarios ~ 361
Scenario 11-1 ~ 361
Scenario 11-2 ~ 361
Scenario 11-3 ~ 362
Scenario Answers ~ 363
Scenario 11-1 Answers ~ 363
Scenario 11-2 Answers ~ 364
Scenario 11-3 Answers ~ 364

Chapter ~ 12
Using AAA to Scale Access Control in an Expanding Network ~ 367
How to Best Use This Chapter ~ 367
“Do I Know This Already?” Quiz ~ 368
Foundation Topics ~ 372
AAA Overview ~ 372
Authentication ~ 372
Authorization ~ 373
Accounting ~ 373
Interface Types ~ 373
AAA Configuration ~ 374
Enabling AAA ~ 374
AAA Authentication ~ 375
AAA Authentication Login ~ 376
AAA Authentication Enable ~ 377
AAA Authentication ARAP ~ 378
AAA Authentication PPP ~ 379
AAA Authentication NASI ~ 380
AAA Authorization ~ 381
AAA Accounting ~ 382
Virtual Profiles ~ 385
Foundation Summary ~ 387
Q&A ~ 389
Scenarios ~ 393
Scenario 12-1 ~ 393
Scenario Answers ~ 394
Scenario 12-1 Answers ~ 394

Appendix A
Answers to the “Do I Know This Already?” Quizzes and Q&A Sections ~ 397

Index ~ 445