What is Policy-based routing?
Policy-based routing provides tools for handling data packets based on specific source or destination criteria
Why use Policy-based routing (PBR)?
Accelerated 63xx-series routers typically have two WAN Internet connections: a wired Ethernet primary connection (DSL, broadband, fiber, etc.) and a backup LTE cellular connection. PBR allows an admin to prioritize traffic going through the 63xx-series router so high-priority/important traffic can go through the LTE cellular connection, while routing all other traffic through the primary Ethernet connection
How does PBR prioritize traffic?
PBR utilizes a 6-tuple prioritization scheme, based on the following criteria:
- Firewall zone (e.g. internal/outbound traffic, external/inbound traffic, IPSec tunnel traffic, etc.)
- Network interface (e.g. WAN, LAN, cellular modem, etc.)
- IPv4 address
- IPv6 address
- MAC address
- Domain
In addition, admins can also specify the type of protocol this PBR entry applies to (TCP, UDP, ICMP, or all).
Configuration/setup examples
The following are example setups utilizing policy-based routing to prioritize traffic from certain source address or devices. These show the versatility that PBR offers.
Per-device Policy-based Routing with Dual WAN