Book Image

Mastering Palo Alto Networks - Second Edition

By : Tom Piens aka Piens aka 'reaper'
Book Image

Mastering Palo Alto Networks - Second Edition

By: Tom Piens aka Piens aka 'reaper'

Overview of this book

Palo Alto Networks’ integrated platform makes it easy to manage network and cloud security along with endpoint protection and a wide range of security services. This book is an end-to-end guide to configure firewalls and deploy them in your network infrastructure. You will see how to quickly set up, configure and understand the technology, and troubleshoot any issues that may occur. This book will serve as your go-to reference for everything from setting up to troubleshooting complex issues. You will learn your way around the web interface and command-line structure, understand how the technology works so you can confidently predict the expected behavior, and successfully troubleshoot any anomalies you may encounter. Finally, you will see how to deploy firewalls in a cloud environment, and special or unique considerations when setting them to protect resources. By the end of this book, for your configuration setup you will instinctively know how to approach challenges, find the resources you need, and solve most issues efficiently.
Table of Contents (18 chapters)
16
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17
Index

Redirecting sessions over different paths using policy-based forwarding

Policy-Based Forwarding (PBF) allows you to set up rules that let certain sessions bypass routing entirely. In the first stage of packet processing, a session can be sent over a different interface than what the routing table would normally dictate. This could be handy if you want to send certain sessions over a secondary ISP link (or leased line) or if you need to ensure packets go out on a specific VLAN, tunnel, or SD-WAN interface. We’ll be going over a few common use cases in the following sections as PBF can be applied in several different ways.

Redirecting critical traffic

A common scenario is a small office with a cheap but unreliable DSL or cable uplink with high bandwidth for internet traffic and a reliable but expensive link for business-critical applications. While the default route in the virtual router directs all traffic out of the DSL or cable model, a PBF rule could redirect critical...