Top Selling Firewall Brands
Capture more with Capture Client on SonicWall Firewalls
Simplify security with Sophos Central & XG Firewalls
Cost-effective SMB firewalls, centrally managed
Integrate endpoints, firewalls, & more with the Security Fabric
Browse by Popular Category
Next-generation network security appliances
Offer fast, secure wireless connectivity
Increase connectivity with a high-speed switch.
Prevent Anti-malware, AV, anti-spam, & more
Learn About Firewalls
What Is A Firewall?
A firewall is a device that sits in front of the network that monitors all inbound and outbound traffic for potential threats. If the firewall detects suspicious activity then it processes those threats according to the firewall rules and configuration. Firewalls basically decide what is allowed to come in and out of networks.
How Does A Firewall Work?
Firewalls work by monitoring inbound and outbound traffic on your network. When a data packet requests access to your network, firewalls inspect the packet ahead of time to determine whether the request is valid or potentially dangerous. Next generation firewalls go a step farther with Deep Packet Inspection, cracking open the entire data packet to inspect its contents before reaching a security determination.
Best Firewalls for Small Business
SonicWall NSa 3650 firewalls are built to secure businesses up to 300 users.
SonicWall TZ350 is a next gen firewall that packs a serious punch for small businesses.
XG Firewalls deliver superb real-time communication across your network.
Firebox firewalls are perfect standalone solutions for small to mid-sized businesses.