Book Image

Mastering pfSense - Second Edition

By : David Zientara
Book Image

Mastering pfSense - Second Edition

By: David Zientara

Overview of this book

pfSense has the same reliability and stability as even the most popular commercial firewall offerings on the market – but, like the very best open-source software, it doesn’t limit you. You’re in control – you can exploit and customize pfSense around your security needs. Mastering pfSense - Second Edition, covers features that have long been part of pfSense such as captive portal, VLANs, traffic shaping, VPNs, load balancing, Common Address Redundancy Protocol (CARP), multi-WAN, and routing. It also covers features that have been added with the release of 2.4, such as support for ZFS partitions and OpenVPN 2.4. This book takes into account the fact that, in order to support increased cryptographic loads, pfSense version 2.5 will require a CPU that supports AES-NI. The second edition of this book places more of an emphasis on the practical side of utilizing pfSense than the previous edition, and, as a result, more examples are provided which show in step-by-step fashion how to implement many features.
Table of Contents (15 chapters)

Troubleshooting VLANs

VLAN troubleshooting is somewhat different than troubleshooting other network problems in that if you have an enterprise-level switch, the manufacturer will have troubleshooting guidelines tailored to the switch. You still need to verify that the pfSense component of your configuration is correct, however, and there are some troubleshooting elements that are common to all brands of switches. We will begin by considering general configuration issues.

General troubleshooting tips

It is good practice to work our way down on the OSI network model, which means starting at the physical layer. You should check your cabling, and if necessary, you should replace suspect cabling with known good cabling. Having...