User's Manual

308625-14.00 Rev 00
v
Contents
Preface
Before You Begin ............................................................................................................. xv
Text Conventions .............................................................................................................xvi
Acronyms ........................................................................................................................xvii
Related Publications ......................................................................................................xviii
How to Get Help ..............................................................................................................xix
Chapter 1
Configuring GRE Tunnels
GRE Concepts and Terminology ....................................................................................1-2
How GRE Tunneling Works ......................................................................................1-3
Requirements for GRE Tunnels Encapsulating IP ....................................................1-6
Announce Policies .............................................................................................1-6
Accept Policies ..................................................................................................1-7
Static Routes .....................................................................................................1-7
Creating a GRE Tunnel ...................................................................................................1-8
Creating the Local Tunnel End Point ........................................................................1-8
Adding a Protocol to the Local Tunnel End Point ...................................................1-10
Adding an IP Protocol Interface .......................................................................1-10
Adding an IPX Protocol Interface .....................................................................1-11
Configuring the Remote Tunnel End Point .............................................................1-12
Step 1. Configuring a Remote Physical End Point ...........................................1-13
Step 2. Configuring a Remote Logical Interface ..............................................1-14