Corporate Headquarters

iii
Cisco IOS VPN Configuration Guide
OL-8336-01
C O N T E N T S
Preface
ix
Purpose
ix
Audience
x
Organization
x
Related Documentation
xi
Obtaining Documentation
xii
Cisco.com
xii
Product Documentation DVD
xii
Ordering Documentation
xiii
Documentation Feedback
xiii
Cisco Product Security Overview
xiii
Reporting Security Problems in Cisco Products
xiv
Obtaining Technical Assistance
xiv
Cisco Technical Support & Documentation Website
xv
Submitting a Service Request
xv
Definitions of Service Request Severity
xv
Obtaining Additional Publications and Information
xvi
Using Cisco IOS Software
1 - 1
Conventions
1 - 1
Getting Help
1 - 2
Finding Command Options
1 - 3
Understanding Command Modes
1 - 5
Summary of Main Command Modes
1 - 6
Using the no and default Forms of Commands
1 - 7
Saving Configuration Changes
1 - 8
Network Design Considerations
2 - 1
Overview of Business Scenarios
2 - 1
Assumptions
2 - 2
Cisco SAFE Blueprint
2 - 3
Hybrid Network Environments
2 - 4
Mixed Device Deployments
2 - 4
Integrated versus Overlay Design
2 - 4

---

Contents
iv
Cisco IOS VPN Configuration Guide
OL-8336-01
Network Traffic Considerations
2 - 5
Dynamic versus Static Crypto Maps