IT Network Equipment Supplier
High-quality Brand Firewalls products for all Types and Scenarios, One-stop Intelligent It Solutions
A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.
Firewalls have been a first line of defense in network security for over 25 years. They establish a barrier between secured and controlled internal networks that can be trusted and untrusted outside networks, such as the Internet.
Related Cisco Firewalls Series：
