OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.




IPCop is described as 'Firewall is a Linux firewall distribution geared towards home and SOHO (Small Office/Home Office) users. The IPCop interface is very user-friendly and task-based. IPCop offers the critical functionality of an expensive network appliance using stock, or even obsolete' and is a Firewall in the os & utilities category. There are more than 10 alternatives to IPCop for a variety of platforms, including Linux, Self-Hosted, BSD, VirtualBox and VMware vSphere Hypervisor apps. The best IPCop alternative is OPNsense, which is both free and Open Source. Other great apps like IPCop are pfSense, IPFire, Endian Firewall Community and OpenContrail.
OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.




pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more.




IPFire is a server distribution with intended to use as a firewall. It focuses on flexibility, and scales from small to middle sized business networks and home networks.

It is a direct derivative / spin-off off of IPCop and therefore featues ALL of what IPCop used to offer and then even some more! And it is actively maintained and developed.
It has all the same features and more. It is also actively maintained.


Endian Firewall Community (EFW) is a "turn-key" linux security distribution that turns every system into a full featured security appliance with Unified Threat Management (UTM) functionality. The software has been designed with "usability in mind" and is very...



OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.
CacheGuard Gateway is a free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on...

Zeroshell is a Linux distribution for servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the form of Live CD or Compact Flash image and you can configure and administer it using your web browser.



The SmoothWall Open Source Project was set up to develop and maintain SmoothWall Express - a Free firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.



BSD Router Project (BSDRP) is an embedded free and open source software router distribution based on FreeBSD with FRRouting (Quagga fork) and Bird.
It's really actively developed and additionally in a country not under direct control of the NSA or GCHQ respectively. As IPCop seems to be dead (no new version since some 2 years) IPFire has taken the best of IPCop and made it very much better.