Cabletron Systems 9032578-05 Chapter IP Policy-Based Forwarding Configuration Guide, Overview

Chapter 15

IP Policy-Based

Forwarding

Configuration

Guide

Overview

You can configure the SSR to route IP packets according to policies that you define. IP policy-based routing allows network managers to engineer traffic to make the most efficient use of their network resources.

IP policies forward packets based on layer-3 or layer-4 IP header information. You can define IP policies to route packets to a set of next-hop IP addresses based on any combination of the following IP header fields:

•IP protocol

•Source IP address

•Destination IP address

•Source Socket

•Destination Socket

•Type of service

For example, you can set up an IP policy to send packets originating from a certain network through a firewall, while letting other packets bypass the firewall. Sites that have multiple Internet service providers can use IP policies to assign user groups to particular

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