NetSentinel

by NetSentinel Project

Free Download 1 Visit Website

Versions:

  • 2.3.0
  • 2.2.8
  • 2.2.7
  • 2.2.6
  • 2.2.5
  • 2.2.4
  • 2.2.3
  • 2.2.2
  • 2.2.1
  • 2.2.0
  • 2.1.52
  • 2.1.51
  • 2.1.50
  • 2.1.49
  • 2.1.48
  • 2.1.47
  • 2.1.46
  • 2.1.44
  • 2.1.42
  • 2.1.41
  • 2.1.40
  • 2.1.39
  • 2.1.38
  • 2.1.37
  • 2.1.36
  • 2.1.35
  • 2.1.34
  • 2.1.33
  • 2.1.32
  • 2.1.31
  • 2.1.30
  • 2.1.29
  • 2.1.26
  • 2.1.25
  • 2.1.24
  • 2.1.23
  • 2.1.22
  • 2.1.21
  • 2.1.19
  • 2.1.18
  • 2.1.17
  • 2.1.16
  • 2.1.15
  • 2.1.14
  • 2.1.12
  • 2.1.11
  • 2.1.10
  • 2.1.9
  • 2.1.3
  • 2.1.2
  • 2.1.1
  • 2.0.0
  • 1.9.90
  • 1.9.88
  • 1.9.87
  • 1.9.76
  • 1.9.72
  • 1.9.68
  • 1.9.67
  • 1.9.66
  • 1.9.61
  • 1.9.59
  • 1.9.57
  • 1.9.45
  • 1.9.44
  • 1.9.43
  • 1.9.42
  • 1.9.40
  • 1.9.38
  • 1.9.35
  • 1.9.31
  • 1.9.24
  • 1.9.23
  • 1.9.21
  • 1.9.19
  • 1.9.17
  • 1.9.7
  • 1.9.6
  • 1.9.5
  • 1.9.3
  • 1.9.2
  • 1.9.1
  • 1.9.0
  • 1.7.9
  • 1.7.7
  • 1.7.6
  • 1.7.5
  • 1.7.3
  • 1.7.2
  • 1.7.1
  • 1.7.0
  • 1.6.10
  • 1.6.7
  • 1.6.5
  • 1.6.3
  • 1.6.2
  • 1.6.1
  • 1.6.0
  • 1.5.9
  • 1.4.0
  • 1.3.1
  • 1.2.0

NetSentinel, published by the NetSentinel Project, is a network diagnostic and security tool for Windows that consolidates functions that previously required multiple separate utilities into a single application. It belongs to the network security scanner and monitoring category, combining rogue device detection, Spanning Tree Protocol monitoring, and connectivity analysis. The current release is version 2.3.0, and the software has passed through 102 recorded versions, indicating a mature development history. Its Device Fingerprinter scans the LAN's ARP table and identifies each device by MAC OUI, hostname, and device type, such as cameras, smart speakers, or routers. The Rogue Bridge Detector captures 802.1D and RSTP BPDUs and flags devices that seize the Root Bridge role, a common cause of periodic 15- to 45-second outages. The Broadcast Storm Analyser measures broadcast and multicast packet rates to pinpoint flooding sources, while the IoT Behavioral Baseline learns normal smart-device traffic patterns and alerts when a device begins port-scanning or contacting a command-and-control server. The Root Cause Correlator merges traceroute results, storm data, and STP findings into a single plain-English verdict with actionable remediation steps, and the Connection Stability Monitor provides long-term background ping logging with outage detection, jitter analysis, and a 24-hour stability score. Additional capabilities include a TCP port scanner, OS fingerprinter, CVE lookup, DNS leak test, speed test, ARP spoof detector, DHCP monitor, and SNMP poller. Typical use cases include diagnosing unexplained network outages, identifying unauthorized or misbehaving devices, auditing IoT security, and validating connection reliability over time. The software is suited to network administrators, IT support staff, and advanced home users who need unified visibility into LAN health and security. Most features require Administrator privileges for raw packet capture, and the Npcap packet capture library must be installed to enable the STP, Broadcast Storm, and ARP modules.

Tags:

network 214
security 216
scanner 23
monitoring 75
diagnostics 20
lan 30
wifi 14
dns 28
iot 12
port-scanner 6
cve 4
speed-test 2
packet-capture 4
mqtt 11
home-assistant 2
network-health 1