Next-Generation Firewall (NGFW)
4CGuard Next-Generation Firewall delivers full-spectrum Layer 7 packet inspection, stateful connection tracking, and zero-trust segmentation to protect enterprise perimeters, branches, and data centers against modern network threats.
Legacy Firewalls Blind to Modern Application Threats
Traditional port-and-IP firewalls cannot identify encrypted microservices, web-based applications, or malicious traffic operating over standard ports like 80 and 443. This creates perimeter blind spots that attackers exploit to bypass static security rules.
Inability to inspect application-layer payload headers and content.
Policy fragmentation across static IP subnets without user identity context.
Performance degradation during intensive stateful packet inspection under heavy load.
Deep Packet Inspection & User-Aware Policy Engine
Incoming packets undergo parallel protocol decoding, stateful session reassembly, and Layer 7 application classification before traversing security policy filters. Policies are dynamically evaluated against authenticated user groups synchronized from enterprise directory services.
Layer 3/4 stateful connection verification and anti-spoofing sanity checks.
TLS/SSL stream identification and optional deep cryptographic inspection.
Layer 7 application signature matching across protocol decoders.
User and group identity binding via Active Directory/LDAP directory sync.
Policy enforcement decision: Allow, Drop, Quarantine, or Bandwidth Shape.
Core technical capabilities
Layer 7 Application Awareness
Classifies and controls thousands of commercial applications and microservices regardless of port, protocol, or SSL encapsulation.
Deep protocol decoders for HTTP/2, QUIC, SSH, SMB, DNS, and enterprise SaaS APIs.
User-Aware Identity Policies
Binds firewall rules directly to Microsoft Active Directory, LDAP, or IdP security groups rather than static IP addresses.
Real-time IP-to-user mappings synchronized via directory agents and RADIUS accounting.
Hardware-Accelerated Throughput
Optimized multi-core packet processing architecture designed to sustain multi-gigabit throughput with sub-millisecond latency.
Lock-free packet ring buffers and zero-copy user-space network drivers.
Zero-Trust Internal Segmentation
Enforces strict microsegmentation between internal departments, IoT hardware, guest subnets, and critical server zones.
Stateful bidirectional isolation preventing east-west lateral threat movement.
Enterprise Perimeter Resilience
Streamline network security operations while maintaining uncompromising visibility and control across hybrid enterprise perimeters.
- Eliminate blind spots created by port-hopping applications and web tunnels.
- Simplify policy audits with human-readable, identity-based security rules.
- Reduce operational overhead with unified single-pane-of-glass policy distribution.
- Maintain regulatory compliance across segmentation boundaries.
Real-world use cases
Enterprise Perimeter Defense
Scenario: A corporate headquarters requires high-throughput inspection of all ingress and egress web traffic without introducing latency for end users.
Outcome: 4CGuard inspects 10Gbps+ edge traffic, blocking unauthorized protocols and malicious connections at the perimeter.
Zero-Trust Internal Microsegmentation
Scenario: An enterprise needs to isolate engineering workstations from accounting databases and legacy IoT building management sensors.
Outcome: Dynamic group-based policies prevent unauthorized lateral access even if an endpoint on the user subnet is compromised.
Related security engines
Intrusion Prevention System (IPS)
4CGuard IPS delivers high-speed signature matching, protocol anomaly detection, and automated threat neutralization to protect network services against unpatched exploits, remote code execution, and brute-force attacks.
Application Control & Microservice Visibility
4CGuard Application Control identifies, prioritizes, throttles, or blocks thousands of web applications, cloud services, and shadow IT protocols regardless of port or encryption techniques.
Deep SSL/TLS Inspection
4CGuard SSL/TLS Inspection decrypts, evaluates, and re-encrypts encrypted traffic streams in real time, enabling the NGFW, IPS, and Web Filtering engines to stop malware payloads and data exfiltration hidden within HTTPS.
Next-Generation Firewall (NGFW) FAQs
Technical specifications and architecture questions regarding Next-Generation Firewall (NGFW).
Traditional firewalls only inspect Layer 3 and 4 headers (IP addresses and ports). 4CGuard NGFW inspects the entire payload up to Layer 7, identifying the exact application, user identity, and payload content regardless of the port used.
Evaluate 4CGuard on your network topology
Schedule an architectural walkthrough with a network security engineer. Review Layer 7 inspection rules, encrypted payload decapsulation, and Active Directory policy integration.