Mobile IP technology and applications

✍ Scribed by Chandra, Madhavi W.; Leung, Kent; Raab, Stefan

• Publisher: Cisco Press
• Year: 2005
• Tongue: English
• Leaves: 313
• Series: Networking Technology
• Category: Library

✦ Synopsis

Real-world solutions for Cisco IOS(R) Mobile IP configuration, troubleshooting, and management


Understand the concept of mobility and the requirements of mobility protocols
Learn necessary components of a Mobile IP network, including features, functions, and message flows
Examine security concepts related to Mobile IP, including protocol authentication and dynamic keying
Evaluate high availability solutions and integration with AAA servers in campus networks
Explore the features of metro mobility, including reverse tunneling, firewall, NAT traversal, and integration with VPN technologies
Configure IOS Mobile IP networks, including integration topics such as redundancy, QoS, and VPN
Manage the Mobile IP infrastructure, including Home Address management, scalability considerations, and network management
Take a look at the future of Mobile IP, including Layer 2 integration challenges, Mobile IPv6, unstructured mobility, and mobile ad-hoc networking
Two of the world's most powerful technology trends, the Internet and mobile communications, are redefining how and when people access information. With the majority of information and new services being deployed over IP, the use of devices such as cellular phones, PDAs, and laptops for accessing data networks is pushing the need for "always on" IP connectivity. The evolution of mobile computing points to a coming together of the best of desktop computing and cellular communications--the predictability and "always connected" experience of the desktop combined with the ease of use and mobility of the cell phone. One challenge to mobile data communication is moving data across different networks. The solution to this problem is a standards-based protocol: Mobile IP. Mobile IP is an open standard that allows users to keep the same IP address, stay connected, and maintain ongoing applications while roaming between IP networks. "Mobile IP Technology and Applications" is the first book to address the practical application of Mobile IP in real-world environments. Cisco IOS(R) Mobile IP configuration, troubleshooting, and management are covered in depth and supported by real-world examples. Mobility solutions addressed in this book include enterprise campus wireless LANs and metropolitan mobility for both individual devices and whole networks. Each example is designed to teach configuration, management, and troubleshooting in a manner that is directly applicable to common mobility needs. Whether you are looking for an introduction to IP mobility or detailed examples of Mobile IP technology in action, Mobile IP Technology and Applications is your complete resource for reaping the benefits that secure, reliable mobile communications have to offer. "IP Mobility provides the capability not only for me to connect to the world at large, but for it to find and connect to me."--Fred Baker, Cisco Fellow, Cisco Systems, Inc. This book is part of the Cisco Press(R) Networking Technology Series, which offers networking professionals valuable information for constructing efficient networks, understanding emerging technologies, and building successful networking careers.

✦ Table of Contents

Cover......Page 1
Contents......Page 11
Foreword......Page 18
Introduction......Page 19
Chapter 1 Mobile and Wireless Technologies......Page 22
Wireless Technology......Page 23
Challenges of Communications Mobility......Page 24
Location Discovery......Page 25
Update Signaling......Page 26
Full Mobility and the OSI Protocol Stack......Page 27
Mobility at Layer 3......Page 28
The Case for Mobile IP......Page 29
Review Questions......Page 30
Mobile IP: The Elevator Pitch......Page 32
…Where End Devices Signal Their Own Routing Updates…......Page 34
…and Dynamic Tunnels Eliminate the Need for Host Route Propagation......Page 35
Mobile Node......Page 37
Home Network and Home Address......Page 38
Care-of Address......Page 40
Mobile IP Protocol Concepts......Page 41
Mobile IP Agent Discovery......Page 43
Move Detection and Mobile IP Handover Policy......Page 47
Mobile IP Handover......Page 52
Mobile IP Registration......Page 53
Identification......Page 55
Services......Page 56
Authentication......Page 60
Relevant Address Fields......Page 61
Registration Reply Codes......Page 64
Registration Delivery......Page 65
Mobile IP Example......Page 68
Tunneling......Page 69
Triangle Routing......Page 70
Review Questions......Page 72
Chapter 3 Mobile IP Security......Page 76
Protocol Authentication Extensions......Page 77
Security Associations......Page 78
Algorithm and Mode......Page 80
Replay Protection Methods......Page 81
Mobile Node and Foreign Agent Authentication and Challenge Mechanism......Page 83
FA Challenge......Page 84
MN-AAA Authentication......Page 86
Standards-Based Dynamic Keying......Page 88
Cisco Dynamic Security Association and Key Distribution......Page 89
Location Privacy......Page 91
Review Questions......Page 92
Building the Baseline Topology......Page 96
Correspondent Node Configuration......Page 98
Home Agent Configuration......Page 99
Foreign Agent Configuration......Page 102
Mobile Node Configuration......Page 104
Operation and Evaluation/Troubleshooting......Page 105
Home Agent......Page 106
Mobile Node......Page 107
FA......Page 108
Examining the Routing Table......Page 109
Single-Router Topology......Page 110
Summary......Page 111
Review Questions......Page 112
Campus Mobility Model......Page 114
Storing Security Associations in AAA......Page 115
RADIUS......Page 119
TACACS+......Page 120
Cisco Zero Configuration Client......Page 121
Home Agent Redundancy......Page 123
Configuration Commands......Page 126
Summary......Page 134
Review Questions......Page 135
Metro Mobility Model......Page 138
Reverse Tunneling......Page 139
Reverse-Tunnel Delivery Style......Page 141
Reverse-Tunnel Signaling......Page 142
Reverse-Tunnel Configuration......Page 143
Tunnel Path MTU......Page 144
Impact of Network Address Translation......Page 145
NAT Traversal UDP Tunneling......Page 146
Mobile IP NAT Configuration......Page 147
VPN Integration......Page 148
IPSec and Mobile IP......Page 149
Mobile IP over IPSec over Mobile IP......Page 151
Resource Revocation......Page 152
Resource Revocation Overview......Page 153
Revocation Support Extension and Messages......Page 154
Registration Revocation Example......Page 155
Bringing It All Together Through an Example......Page 157
Evaluating the Metro Mobility Example......Page 159
Summary......Page 160
Review Questions......Page 161
Chapter 7 Metro Mobility: Cisco Mobile Networks......Page 164
Mobile Networks (Static or Dynamic)......Page 166
Configuration of Mobile Router and Its Mobile Networks......Page 169
Mobile Router Service on an Interface......Page 170
Mobile Router Interface-Level Configuration......Page 172
Agent Selection and Mobile IP Registration......Page 173
Routing to and from the Mobile Router......Page 175
Home Agent Enhancements......Page 176
Home Agent Configuration for Network Mobility......Page 178
Priority Home Agent Assignment......Page 179
Agent Discovery—Tuning IRDP Options......Page 180
Local Routing to Mobile Networks......Page 181
Configuration for Local Routing to Mobile Networks......Page 183
Mobile Router Redundancy......Page 184
Asymmetric Links......Page 185
Configuration Needed for Asymmetric Links......Page 186
Example of Asymmetric Link Behavior......Page 187
Static Colocated Care-of Address......Page 189
Dynamic Colocated Care-of Address......Page 190
Behavior Using Colocated Care-of Addresses......Page 191
Configuration Examples Using Colocated Care-of Addresses......Page 192
Quality of Service......Page 193
IPSec and the Mobile Router......Page 195
Review Questions......Page 198
Management of the Mobile Nodes Home Address......Page 202
Virtual Networks......Page 203
Dynamic Home Address Assignment......Page 205
AAA......Page 209
Static Home Addressing with NAI......Page 211
Building a Call Model......Page 213
Number of Nodes......Page 214
Amount of Data Traffic......Page 215
An Example Call Model......Page 216
Network Management......Page 217
Objects Matching the Call Model......Page 218
Path MTU Discovery......Page 219
Reverse Path Forwarding Checks......Page 220
Security Association Incompatibilities......Page 221
Review Questions......Page 222
Mobile IP and Public Access Networks......Page 226
Public Wireless LAN......Page 227
Cdma2000 Technology......Page 228
GSM Technology......Page 232
FLASH-OFDM Technology......Page 234
Cisco SWAN and Mobile IP......Page 236
AAA-Based Dynamic Key Generation......Page 239
Protocol Operation......Page 240
Differences Between Mobile IPv4 and Mobile IPv6......Page 248
Lessons Learned......Page 252
MANET......Page 261
References......Page 265
Review Questions......Page 266
Appendix A: Answers to Review Questions......Page 268
Appendix B: IOS Mobile IP: Supported SNMP MIBs......Page 294
C......Page 302
D......Page 303
H......Page 304
M......Page 305
P......Page 307
S......Page 308
W–Z......Page 309