You're reading from OPNsense Beginner to Professional Protect networks and build next-generation firewalls easily with OPNsense

Product type Paperback

Published in Jun 2022

Publisher Packt

ISBN-13 9781801816878

Length 464 pages

Edition 1st Edition

Tools

FreeBSD

Concepts

Network Security

Author (1):

Julio Cesar Bueno de Camargo

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Table of Contents (25) Chapters

Preface

1. Section 1: Initial Configuration

2. Chapter 1: An OPNsense Overview FREE CHAPTER

3. Chapter 2: Installing OPNsense

4. Chapter 3: Configuring an OPNsense Network

5. Chapter 4: System Configuration

6. Section 2: Securing the Network

7. Chapter 5: Firewall

8. Chapter 6: Network Address Translation (NAT)

9. Chapter 7: Traffic Shaping

10. Chapter 8: Virtual Private Networking

11. Chapter 9: Multi-WAN – Failover and Load Balancing

12. Chapter 10: Reporting

13. Section 3: Going beyond the Firewall

14. Chapter 11: Deploying DHCP in OPNsense

15. Chapter 12: DNS Services

16. Chapter 13: Web Proxy

17. Chapter 14: Captive Portal

18. Chapter 15: Network Intrusion (Detection and Prevention) Systems

19. Chapter 16: Next-Generation Firewall with Zenarmor

20. Chapter 17: Firewall High Availability

21. Chapter 18: Website Protection with OPNsense

22. Chapter 19: Command-Line Interface

23. Chapter 20: API – Application Programming Interface

24. Other Books You May Enjoy

Policy-based routing

Unlike the static routes added to the system, policy-based routes will be created through firewall rules on OPNsense. In Chapter 5, Firewall, we explored firewall concepts and rules, but nothing related to using a gateway on rules, so now it's time to learn how to do that.

Before starting, to follow these steps, we'll need a host connected to OPNsense's LAN. If you are using VirtualBox as your lab platform, with an additional VM installed, follow these steps to connect it to the OPNsense LAN:

To attach the VM to OPNsense's LAN, change the network settings to Host-only Adapter by editing the VM settings on VirtualBox:

Figure 9.6 – Changing VM network settings to connect on OPNsense's VM LAN

As we can see in the preceding screenshot, we need to select Host-only Adapter in the Attached to option. Choose the same network interface your OPNsense's VM uses as the LAN interface in the...