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PortFinder

by packetThrowerv4.1.4

Last updated

Network switch port discovery tool using CDP / LLDP / MNDP.

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Install with winget

$ winget install --id packetThrower.PortFinder --exact --version 4.1.4

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for PortFinder

PortFinder uses MSI (WiX). The silent install switches are /quiet /norestart.

One-line silent install (x64, machine scope)
msiexec.exe /i PortFinder_4.1.4_amd64_en-US.msi /quiet /norestart

See the full silent install reference for PortFinder →

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About

PortFinder identifies which switch, switchport, and VLAN your

machine is currently plugged into by listening for the discovery

packets the switch is already broadcasting. No agent on the

switch, no SNMP, no login — just a passive 30-second listen on

the wire.

Supported protocols:

- LLDP (universal: Aruba, HP, Juniper, Extreme, Cisco, MikroTik)

- CDP (Cisco)

- MNDP (MikroTik RouterOS fallback)

Ships a desktop GUI and a headless CLI in one binary. The CLI

takes `portfinder capture --interface <NIC> --protocol LLDP

[--json]`. Requires Npcap (with "Allow non-administrators to

capture" enabled) for non-administrator capture.

Installers · v4.1.4

ArchitectureTypeScopeInstallDownload
x64MSI
WiX
machineDirect
arm64MSI
WiX
machineDirect

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

No known CVEs for PortFinder.

Coverage is best-effort and depends on a winget package mapping to an NVD CPE entry. Absence here is not a guarantee of safety.

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More from packetThrower or browse cdp, discovery, lldp.

Frequently asked questions

How do I install PortFinder on Windows?
Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id packetThrower.PortFinder --exact --version 4.1.4. winget downloads the installer from packetThrower and runs it. Requires Windows 10 (1809+) or Windows 11.
How do I install PortFinder silently for unattended deployment?
Add --silent and accept the agreements upfront: winget install --id packetThrower.PortFinder --exact 4.1.4 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.
What are the silent install switches for PortFinder?
PortFinder uses MSI (WiX). Run the downloaded installer with: msiexec.exe /i PortFinder_4.1.4_amd64_en-US.msi /quiet /norestart. The silent switches are /quiet /norestart.
How do I uninstall PortFinder via winget?
Run: winget uninstall --id packetThrower.PortFinder --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from PortFinder's Apps & Features entry.
Is PortFinder free?
PortFinder is distributed under GPL-3.0. Refer to the publisher (https://packetthrower.github.io/PortFinder/) for the full license terms - Wingetly itself does not charge for installation.
Does PortFinder work on Windows 10?
Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls PortFinder directly from the publisher.
How do I keep PortFinder up to date?
Run winget upgrade --id packetThrower.PortFinder --exact, or winget upgrade --all to update everything winget tracks. We index 3 versions of PortFinder from microsoft/winget-pkgs.

Recent versions

  • 4.1.4latest
  • 4.1.3
  • 4.1.2