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. Beginning with a small firewall system of a few megabytes, it is possible to run IPFire as a file server or VPN gateway for staff, branches or customers. This modularity means that yor version of IPFire runs with exactly what you require and nothing more.

IPFire - An open source firewall solution

pfSense is a powerful, flexible firewalling and routing platform. It includes a long list of related features and a package system allowing further expandability without adding bloat and potential security vulnerabilities to the base distribution.
  pfSense is a stateful firewall, by default all rules are stateful. A Dynamic DNS client is included to allow you to register your public IP with a number of dynamic DNS service providers.

pfSense - Firewall and Routing platform

SmoothWall is a open source Firewall distribution. It Supports LAN, DMZ, and Wireless networks, Static Ethernet, DHCP Ethernet, PPPoE, PPPoA using various USB and PCI DSL modems. It provides traffic stats, POP3 email proxy with Anti-Virus, Web proxy for accelerated browsing and lot more.

SmoothWall - Express Open Source Firewall Project

OPNsense is an open source, easy-to-use and easy-to-build FreeBSD based firewall and routing platform. The feature set of OPNsense includes high-end features such as forward caching proxy, traffic shaping, intrusion detection and easy OpenVPN client setup. It also supports Netflow Exporter, Network Flow Monitoring, DNS Server & DNS Forwarder, Stateful inspection firewall and lot more.

OPNsense - Your Next Open Source FireWALL

IPCop provides secure and stable Linux Firewall Distribution. It is a complete Linux Distribution whose sole purpose is to protect the networks it is installed on. It is geared towards home and SOHO users. The IPCop web-interface is very user-friendly and makes usage easy.

IPCop - Linux firewall distribution

m0n0wall is a project aimed at creating a complete, embedded firewall software package that, when used together with an embedded PC, provides all the important features of commercial firewall boxes. The entire system configuration is stored in one single XML text file to keep things transparent. It features include NAT/PAT, IPv6 support, SNMP agent, caching DNS forwarder, VPN tunnels and lot more.

m0n0wall - Embedded Firewall

Ssphirewall is a powerfull firewall, built from scratch to give you complete control and visibility over your network. It is built with everything you would expect from a network firewall, with a simple and flexible management interface. Its features include Routing, Nat and Pat, Dhcp support, PPPoE support,   - Stateful firewall core, Flexible filtering rules, QOS and Traffic Shaping, Analytics and lot more.


Sphirewall - Opensource Firewall

VyOS is an open source network operating system that can be installed on physical hardware or a virtual machine on your own server, or a cloud platform . It is based on GNU/Linux and joins multiple applications such as Quagga, ISC DHCPD, OpenVPN, StrongS/WAN and others under a single management interface.
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VyOS is more similar to traditional hardware routers, with a focus on comprehensive support for advanced routing features such as dynamic routing protocols and command line interface. It has long list of features like VPN, Firewalls, VLAN, Static and Dynamic routing, Flow accounting and alot more. 


VyOS is an open source network operating system that can be installed on physical hardware or a virtual machine on your own server, or a cloud platform . It is based on GNU/Linux and joins multiple applications such as Quagga, ISC DHCPD, OpenVPN, StrongS/WAN and others under a single management interface.

VyOS - Network Operating System 

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