CLUSTER NETWORK-MONITORING-ARP · 16 ENTRIES · EARLIEST ENTRY 2018-09-04

Network monitoring and scanning tools

This cluster covers network monitoring, scanning, and packet analysis tools for security professionals, homelab operators, and network administrators. Dated entries stretch from 2011 to 2026 with a sparse, steady release cadence, including four dated members in 2026 before the index start, and two members have no recorded source date. Traction leadership by activity signal is network-doctor (3 stars), followed by portguard (2 stars) and MapMyLAN (1 star).

Entry timeline

ENTRY TIMELINE

SEP 2015: 1SEP 2018: 1JAN 2019: 1APR 2020: 1JUL 2020: 1OCT 2020: 1APR 2023: 1APR 2026: 1JUN 2026: 1JUL 2026: 1AUG 2026: 1SEP 2026: 4OCT 2026: 1
SEP 2015OCT 2026

Members by activity

Activity signals, not revenue.

Build origin · 5 hand-coded · 11 unlabelled

Operator · 4 hobby · 1 indie · 9 open source · 2 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 16 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01agentpackettracer8★5 days—hobbyAI assistant embedded in Cisco Packet Tracer that inspects network labs, plans changes, configures devices, and verifies CLI results.
  2. 02home-netmon0★23 days—hobbyHome network security monitor that watches ARP and DNS activity, flags new devices and plaintext-HTTP credential leaks, and alerts via a local dashboard and Telegram.
  3. 03network-lens0★16 days—hobbymacOS desktop network monitor that probes gateway, DNS, and endpoints, logs anomalies, and provides evidence-based diagnostics.
  4. 04net-sentinel0★26 days—hobbyDistributed home-network security monitor that discovers devices, logs DNS, detects port changes, and enriches findings with threat intelligence.
  5. 05NextJump0★1 mo—indieNetwork device configuration tool that manages routers, switches, interfaces, routing tables, and IPv4 subnet calculations.
  6. 06portguard2★1 moliveFree port reference and exposed-device lookup tool that shows risky open ports on a network.
  7. 07l0p4map0★2 moliveopen sourceA network monitoring tool that combines ARP discovery and nmap scanning to visualize network activity.
  8. 08netscan-tui0★4 moliveopen sourceNetwork scanning tool that continuously monitors attack surface, tracks scan history, performs differential comparisons, and offers AI-assisted triage.
  9. 09snmpb0★4 moliveopen sourceNetwork management tool that lets users browse SNMP agents and edit MIB definition files for monitoring devices.
  10. 10addrwatch0★6 yrabandonedlivehand-codedopen sourceNetwork monitoring tool that tracks IPv4, IPv6, and ethernet address pairings and reports changes or anomalies.
  11. 11ioninja0★5 moliveopen sourceA professional terminal emulator and protocol analyzer for network debugging and traffic inspection.
  12. 12Zenmap0★3 yrabandonedlivehand-codedopen sourceGUI front-end for the Nmap network scanner, providing visual scan results, comparison, and profile management for network security analysis.
  13. 13arpalert0★4 yrabandonedlivehand-codedopen sourceNetwork monitoring tool that watches Ethernet ARP changes and alerts on potential network security events.
  14. 14bgpalerter-bin0★4 yrabandonedlivehand-codedopen sourceMonitors BGP routing data to detect anomalies and alert network operators of routing changes.
  15. 15lsm0★4 yrabandonedlivehand-codedopen sourceNetwork monitoring tool that tracks the link status of routers and firewalls and reports connectivity availability.
  16. 16Ethena Scanner0★unknownliveMonitors and scans Ethena protocol data to provide real-time insights.