Best Firewall Software44Firewalls are designed to block unauthorized access to and from networks, but chiefly to stop Internet users from accessing private networks.Cisco ASA1https://dudodiprj2sv7.cloudfront.net/vendor-logos/KP/BJ/EKH5RFTLCO4X-180x180.PNGFortinet FortiGate2https://dudodiprj2sv7.cloudfront.net/vendor-logos/MZ/NA/I0WLZ36A46RB-180x180.JPEGCisco Meraki MX Firewalls3https://dudodiprj2sv7.cloudfront.net/product-logos/xb/mX/4WFZL1ANOD5T.JPEGPalo Alto Networks Next-Generation Firewalls - PA Series4https://dudodiprj2sv7.cloudfront.net/product-logos/DS/BU/ULEO0WQAHCO8.PNGpfSense5https://dudodiprj2sv7.cloudfront.net/product-logos/1c/pa/ZO1A4AO15GEQ.JPEGSonicWall TZ6https://dudodiprj2sv7.cloudfront.net/vendor-logos/zc/Na/VOD2KUJ9G2Z3-180x180.JPEGSophos UTM7https://dudodiprj2sv7.cloudfront.net/vendor-logos/aW/xM/0AFACIEHNKRT-180x180.JPEGWatchGuard Network Security8https://dudodiprj2sv7.cloudfront.net/product-logos/5W/jq/VAPTVJ0UKFRX.JPEGPalo Alto Networks WildFire9https://dudodiprj2sv7.cloudfront.net/product-logos/ej/jE/F7QTO7QIO9UF.PNGZscaler Web Security10https://dudodiprj2sv7.cloudfront.net/product-logos/IH/93/E4CITT6N520T.pngUntangle NG Firewall11https://dudodiprj2sv7.cloudfront.net/product-logos/1G/OL/1ZTB7ZMOO181.pngBarracuda NG Firewall12https://dudodiprj2sv7.cloudfront.net/vendor-logos/cV/TT/VZW5UWK3DW36-180x180.JPEGWatchGuard XTM - Discontinued Product13https://dudodiprj2sv7.cloudfront.net/product-logos/wC/uY/EDJTWWBLNSLQ.jpegRackFoundry Total Security Management14https://dudodiprj2sv7.cloudfront.net/product-logos/Jl/h8/UUKVPXASSP28.PNGJuniper SRX15https://dudodiprj2sv7.cloudfront.net/vendor-logos/gB/Ia/1U86W7216QBM-180x180.PNGPalo Alto Networks Virtualized Next-Generation Firewalls - VM Series16https://dudodiprj2sv7.cloudfront.net/vendor-logos/MK/NG/UKHCVB1FA0XT-180x180.PNGStonesoft Firewall (Discontinued)17https://dudodiprj2sv7.cloudfront.net/vendor-logos/Ih/Yn/XPF0T8T20KCE-180x180.JPEGAlert Logic Web Security Manager18https://dudodiprj2sv7.cloudfront.net/vendor-logos/6s/Kj/LNDO4FAX2DHG-180x180.JPEGCheck Point Firewall Software Blade19https://dudodiprj2sv7.cloudfront.net/product-logos/el/42/JT46P4SQMN0S.jpegCyberoam20https://dudodiprj2sv7.cloudfront.net/product-logos/gY/sV/LUCR8FMGRNKH.jpegSourcefire Firewalls21https://dudodiprj2sv7.cloudfront.net/vendor-logos/KP/BJ/EKH5RFTLCO4X-180x180.PNGTrustwave Firewalls22https://dudodiprj2sv7.cloudfront.net/product-logos/lf/MQ/S5LXQ79QPZ1O.jpegSmoothwall UTM23https://dudodiprj2sv7.cloudfront.net/product-logos/66/Os/LLZTG09GXQMZ.jpegCheck Point 2200 Appliances24https://dudodiprj2sv7.cloudfront.net/product-logos/uf/VE/F78KTIQOQ1MV.gifCheck Point 4000 Appliances25https://dudodiprj2sv7.cloudfront.net/vendor-logos/N5/Pq/9GTB1XOCNWCX.png

Firewall Software

Best Firewall Software

TrustMaps are two-dimensional charts that compare products based on satisfaction ratings and research frequency by prospective buyers. Products must have 10 or more ratings to appear on this TrustMap.

Firewall Software Overview

What are Firewall Software?

Firewalls are filters that stand between a computer or computer network and the Internet. Each firewall can be programmed to keep specific traffic in or out. All messages passing through the firewall are examined and those not meeting pre-defined security criteria are blocked.


For example, on the outbound side, firewalls can be configured to prevent employees from transmitting sensitive data outside the network, while on the inbound side, firewalls can be configured to prevent access to certain kinds of websites like social media sites.

Firewall Software Features & Capabilities

  • Application visibility and control

  • Identify and control evasive app threats

  • Intrusion Prevention integration

  • Physical and virtual environment support

  • Integration with LDAP and Active Directory

Firewall methods

Firewalls use several methods to control traffic flowing in and out of a network:


  • Packet filtering: This method analyzes small pieces of data against a set of filters. Those that meet the filter criteria are allowed to pass through, while others are discarded.

  • Proxy service: In this method, computers make a connection to the proxy which then initiates a new network connection based on the content of the request. In this way, there is no direct connection or packet transfer on either side of the firewall. Network addresses are effectively hidden.

  • Stateful inspection: Stateful inspection is a newer firewall security method that monitors communications packets over a period of time. Outgoing packets that request specific types of incoming packets are tracked. Only incoming packets that are an appropriate response are allowed to pass. Firewalls using this method are often referred to as next-generation firewalls (NGFW).

Pricing Information

The cost of firewalls can vary from free (for personal use) to significant sums of money for enterprise firewalls. Firewalls are often on-premise appliances, but can also be purchased as software which must be installed on a server, or as a cloud service. The range of pricing models is broad making it difficult to compare across vendors. However, an enterprise firewall may cost upwards of $30,000, depending on capability and type.

Firewall Products

Listings (1-25 of 49)

10 Ratings

WatchGuard Network Security is a network security and firewall software. WatchGuard has been in the cyber security technology space for over 20 years. The vendor sees itself as a pioneer in the space, and aims to deliver easy-to-deploy and easy-to-manage solutions. In addition to network security...