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Differentiate between Packet Filter and Firewall.

Difference Between Packet Filter and Firewall in Cyber Security,                                                                   

Feature Packet Filter Firewall
Definition Filters network traffic based on packet header data. Controls, monitors, and filters all network traffic.
Layer of Operation Operates at Network Layer (Layer 3). Operates at multiple layers including Application Layer.
Filtering Criteria Based on IP address, port number, and protocol. Includes IP, port, session state, and application data.
State Awareness Stateless — does not track connection states. Stateful — tracks and manages connection states.
Depth of Inspection Only inspects packet headers. Can inspect the full packet including payload.
Security Level Basic — limited filtering and control. Advanced — intelligent threat detection and prevention.
Configuration Simple rule-based configuration. Context-aware and complex configurations possible.
Blocking Capabilities Blocks based on static rules for IPs/ports. Can block malicious apps, behaviors, and traffic patterns.
Monitoring & Logging Minimal or no logging features. Extensive logging, monitoring, and alert systems.
Use Case Suitable for small/simple network environments. Best for enterprise networks and secure infrastructure.
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