Web-based Configuration Guide 1 Network Settings
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3.10 PBR
3.10.1 Overview
Policy-based routing (PBR) is a mechanism for routing and forwarding based on user-specified policies. When a
router forwards data packets, it filters the packets according to the configured rules, and then forwards the
matched packets according to the specified forwarding policy. The PBR feature enables the device to formulate
rules according to specific fields (source or destination IP address and protocol type) in the data packets, and
forward the data packets from a specific interface.
In a multi-line scenario, if the device is connected to the Internet and the internal network through different lines,
the traffic will be evenly routed over the lines if no routing settings are available. In this case, access data to the
internal network may be sent to the external network, or access data to the external network may be sent to the
internal network, resulting in network exceptions. To prevent these exceptions, you need to configure PBR to
control data isolation and forwarding on the internal and external networks.
The device can forward data packets using either of the following three policies: PBR, address-based routing,
and static routing. When all the policies exist, PBR, static routing, and address-based routing have descending
order in priority. For details on address-based routing, see Section 3.2.6 Configuring the Multi-Line Load
Balancing Mode.
3.10.2 Configuration Steps
Choose Local Device > Advanced > Routing > PBR.
Click Add to add a PBR rule.
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