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Redirecting Subscriber Traffic Using ISG Layer 4
Redirect
First Published: March 20, 2006
Last Updated: June 25, 2009
Intelligent Services Gateway (ISG) is a Cisco IOS software feature set that provides a structured
framework in which edge devices can deliver flexible and scalable services to subscribers. This module
describes how to configure ISG to redirect subscriber traffic by using the ISG Layer 4 Redirect feature.
The ISG Layer 4 Redirect feature enables service providers to better control the user experience by
allowing subscriber TCP or User Datagram Protocol (UDP) packets to be redirected to specified servers
for appropriate handling. ISG Layer 4 redirection can be used to facilitate subscriber authentication,
initial and periodic advertising captivation, redirection of application traffic, and DNS redirection.
Finding Feature Information
For the latest feature information and caveats, see the release notes for your platform and software
release. To find information about the features documented in this module, and to see a list of the releases in
which each feature is supported, see the
“Feature Information for Redirecting ISG Subscriber Traffic” section
on page 13
.
Use Cisco Feature Navigator to find information about platform support and Cisco IOS XE software
image support. To access Cisco Feature Navigator, go to
http://www.cisco.com/go/cfn
. An account on
Cisco.com is not required.
Contents
•
Prerequisites for Redirecting ISG Subscriber Traffic, page 2
•
Restrictions for Redirecting ISG Subscriber Traffic, page 2
•
Information About Redirecting ISG Subscriber Traffic, page 2
•
How to Configure ISG Layer 4 Redirect, page 3
•
Configuration Examples for ISG Layer 4 Redirect, page 9
Содержание IOS XE
Страница 14: ...About Cisco IOS XE Software Documentation Additional Resources and Documentation Feedback xii ...
Страница 28: ...Using the Command Line Interface in Cisco IOS XE Software Additional Information xiv ...
Страница 36: ...Intelligent Services Gateway Features Roadmap 8 ...
Страница 46: ...Overview of ISG Feature Information for the Overview of ISG 10 ...
Страница 70: ...Configuring ISG Control Policies Feature Information for ISG Control Policies 24 ...
Страница 128: ...Configuring ISG Access for IP Subscriber Sessions Feature Information for ISG Access for IP Subscriber Sessions 44 ...
Страница 136: ...Configuring MQC Support for IP Sessions Feature Information for MQC Support for IP Sessions 8 ...
Страница 194: ...Configuring ISG Policies for Automatic Subscriber Logon Feature Information for ISG Automatic Subscriber Logon 12 ...
Страница 224: ...Configuring ISG Subscriber Services Feature Information for ISG Subscriber Services 20 ...
Страница 336: ...Configuring ISG Integration with SCE Feature Information for Configuring ISG Integration with SCE 16 ...
Страница 344: ...Service Gateway Interface Feature Information for Service Gateway Interface 8 ...