Network Router User Manual

SmartSwitch Router User Reference Manual 207
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