Chapter 11: Deploying DHCP in OPNsense
This final part of the book will go through some extra features you can add to your OPNsense system to go beyond the firewall. We will explore services such as Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS), applying web-browsing controls and guest net authorization with a web proxy and a captive portal. We will see how to extend layer 4 firewalling with intrusion detection systems/intrusion prevention systems (IDSs/IPSs) and Zenarmor plugins and improve OPNsense availability by integrating two or more firewalls in a cluster.
Providing Internet Protocol (IP) addresses to network hosts is one possible firewall duty. In this chapter, we will understand DHCP concepts used by OPNsense and how to use them to perform dynamic IP address leasing. By the end of this chapter, we will be able to understand and set up DHCP using OPNsense, going through the following topics:
- DHCP concepts
- DHCP server
- DHCP relay ...
