Cisco ASR 9000 Series

CHAPTER 11
Implementing Static Routes
This module describes how to implement static routes.
Static routes are user-defined routes that cause packets moving between a source and a destination to take
a specified path. Static routes can be important if the Cisco IOS XR software cannot build a route to a
particular destination. They are useful for specifying a gateway of last resort to which all unroutable packets
are sent.
For more information about static routes on the Cisco IOS XR software and complete descriptions of the
static routes commands listed in this module, see the Related Documents, on page 644 section of this
module. To locate documentation for other commands that might appear while performing a configuration
task, search online in the Cisco ASR 9000 Series Aggregation Services Router Commands Master List.
Note
Feature History for Implementing Static Routes
ModificationRelease
This feature was introduced.Release 3.7.2
The Dynamic ECMP Support for IGP Prefixes feature was added.Release 4.0.1
The Enhanced Object Tracking for IP Static feature was added.Release 4.2.1
•
Prerequisites for Implementing Static Routes, page 632
•
Restrictions for Implementing Static Routes, page 632
•
Information About Implementing Static Routes, page 632
•
How to Implement Static Routes, page 635
•
Configuration Examples, page 641
•
Additional References, page 644
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
631