Clavister NetWall is a family of Next-Generation Firewalls (NGFW) designed and developed in Sweden, targeting mission-critical infrastructure including datacentres, remote sites, and industrial environments. The product incorporates on-device AI-based anomaly detection that completes training in under 15 minutes and operates without cloud dependency, preserving data privacy. It supports deep application awareness, enabling inspection and policy enforcement across thousands of applications, including granular attribute-level control, bandwidth management, and application-based routing. NetWall provides flexible routing capabilities including virtual routing, dynamic routing protocols, and policy-based flows. A high availability architecture enables failover within milliseconds, with health monitoring extended to links, routes, gateways, and third-party hosts. Threat prevention capabilities include botnet command-and-control detection, phishing blocking, DoS/DDoS mitigation, content filtering, and malware prevention. Security analytics are provided through a single-pane-of-glass console with real-time insights, vulnerability prioritisation, and tailored recommendations. Site-to-site VPN is supported via IPsec, and remote access VPN is available through the companion Clavister OneConnect client. Centralised management is handled by Clavister InControl, which supports zero-touch deployment, shared policy sets, role-based access, revision control, and scheduled firmware updates. NetWall is available as physical appliances (desktop to datacentre scale) and as virtualised deployments for public and private cloud environments.