Book Image

Check Point Firewall Administration R81.10+

By : Vladimir Yakovlev
Book Image

Check Point Firewall Administration R81.10+

By: Vladimir Yakovlev

Overview of this book

Check Point firewalls are the premiere firewalls, access control, and threat prevention appliances for physical and virtual infrastructures. With Check Point’s superior security, administrators can help maintain confidentiality, integrity, and the availability of their resources protected by firewalls and threat prevention devices. This hands-on guide covers everything you need to be fluent in using Check Point firewalls for your operations. This book familiarizes you with Check Point firewalls and their most common implementation scenarios, showing you how to deploy them from scratch. You will begin by following the deployment and configuration of Check Point products and advance to their administration for an organization. Once you’ve learned how to plan, prepare, and implement Check Point infrastructure components and grasped the fundamental principles of their operation, you’ll be guided through the creation and modification of access control policies of increasing complexity, as well as the inclusion of additional features. To run your routine operations infallibly, you’ll also learn how to monitor security logs and dashboards. Generating reports detailing current or historical traffic patterns and security incidents is also covered. By the end of this book, you'll have gained the knowledge necessary to implement and comfortably operate Check Point firewalls.
Table of Contents (21 chapters)
1
Part 1: Introduction to Check Point, Network Topology, and Firewalls in Your Infrastructure and Lab
6
Part 2: Introduction to Gaia, Check Point Management Interfaces, Objects, and NAT
13
Part 3: Introduction to Practical Administration for Achieving Common Objectives

When NAT is not enough

While the majority of cases in simple and small environments can be handled by automatic NAT defined in objects’ properties, with increasing scale and complexity, we will have to resort to manual NAT rules.

Note

The information in this section should be used for reference only since it requires the presence of an access control policy, which we have not yet created.

Let’s look at a few more complex examples of manual NAT implementation that, in addition to the creation of NAT rules, might require a few Gaia configuration changes.

Many-to-less

If your internal networks are larger than Class C, using the Hide behind IP address option described in the previous section might not be feasible. You can still do that by representing your large network as several ranges, each with its own public IP in the NAT properties, but this is a rather tedious process.

An alternative way to handle this issue with greater flexibility is with the...