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

Enabling virtual systems

Enabling virtual systems (VSYS) on a firewall makes it into a multi-tenant system. Each VSYS represents a virtual firewall instance that can operate independently while sharing the resources available on the host system. The host system still retains control over all networking functions (interfaces and their configurations, routing tables, IPSec and GRE tunnels, DHCP, DNS proxy, and so on) and the management configuration. Each VSYS can be assigned its own (sub) interfaces and routing can either be taken care of at the system level or by creating virtual routers and assigning them to each VSYSes.

Important note

By default, each firewall creates its objects in vsys1. This is the native VSYS even for devices that do not support multi-VSYS. Objects created in vsys1 or any other VSYS will not be visible to other VSYSes unless their location is set as shared.

Only the larger physical platforms (PA-3220 and up at the time of writing) support...