Firewalls & Packet Filtering
Network security systems that inspect and control traffic between networks according to rules, state, application, or identity context.
Core metadata
- ID: firewalls_packet_filtering
- Era: Modern
- First known date: 1974 (decade)
- Region: Global / multiple regions
- Review status: source_checked
- Maturity: established
Prerequisites
- Computer Networking (computer_networking)
- Internet Protocols (TCP/IP, ARPANET) (internet_protocols_tcp_ip_arpanet)
- Operating Systems (OS Computer Management) (operating_systems_os_computer_management)
Dependents
Fields
Field lanes
- Cybersecurity & Cryptography: Network Security
Node sources
- Security and Privacy Controls for Information Systems and Organizations (NIST Computer Security Resource Center, 2020, official_agency) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 68%
- Prerequisite sources: 3
- expert_inference: 3
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Computer Networking (computer_networking) | enabling | 68% | expert_inference | Computer Networking provides a capability that enables this technology without being the only possible path. |
|
| Internet Protocols (TCP/IP, ARPANET) (internet_protocols_tcp_ip_arpanet) | enabling | 68% | expert_inference | Internet Protocols (TCP/IP, ARPANET) provides a capability that enables this technology without being the only possible path. |
|
| Operating Systems (OS Computer Management) (operating_systems_os_computer_management) | enabling | 68% | expert_inference | Operating Systems (OS Computer Management) provides a capability that enables this technology without being the only possible path. |
|
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