Flow-Based Redirect; Finding Feature Information - Cisco Intelligent Wireless Access Gateway Configuration Manual

Flow-Based Redirect

The traffic from an IP session is redirected based on the destination address (for a simple IP session), and
to a tunnel (for a mobile IP session). However, in some application scenarios, some of the traffic is routed
to a specific system or a specific interface for additional service or processing. Through the Adult Content
Filtering (ACF) capability, web traffic of some sessions can be routed to an ACF appliance that filters the
traffic based on the URL or content. The Flow-Based Redirect (FBR) feature enables applications such as
the ACF to route matching traffic to a specified next hop device.
The FBR feature is Virtual Routing and Forwarding (VRF)-aware. You can map an interface to a VRF or
transfer a VRF as long as the session and the interface connecting the next hop device are within the same
VRF network.
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Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and
feature information, see
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 table at the end of this module.
OL-30226-03
Finding Feature Information, page 79
Flow-Based Redirect for Adult Content Filtering, page 80
Flow-Based Redirect for Selective IP Traffic Offload, page 81
Activating and Deactivating the Flow-Based Redirect Feature Through Vendor-Specific Attributes,
page 82
Configuring Flow-Based Redirect for a Traffic Class Service, page 82
Examples, page 85
Best Practices for Configuring the NAT on the Cisco ASR 1000 Series Routers, page 87
NAT Overloading and Port Parity, page 88
NAT Interface Overloading with VRF, page 88
Additional References, page 89
Feature Information for Flow-Based Redirect, page 89
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