WHITE PAPER NetWall Security Gateway vs. Firewall Enforce True Unidirectional Communications2 Scope This white paper examines the design and security profile of firewalls and compares firewalls to OPSWAT’s NetWall Security Gateway. We will also present common firewall vulnerabilities and describe how NetWall is resilient to those risks.3 Summary There are fundamental differences between the architecture and security profile achieved by NetWall compared to a firewall. The diagram below illustrates the high-level architecture for each. A firewall is a software process that monitors incoming and outgoing network traffic and blocks traffic based on a predefined rule set. Firewalls are inherently bidirectional and network traffic traverses the firewall over a standard IP (Internet Protocol)

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