Packet Echo is free to download and use. Add a Pro key when you need SNMP, Topology Studio, capture analysis and client reports; nothing to reinstall.
Packet Echo Pro: $79 per person, onceThe free edition, upgradeable to Pro with a key. Packet Lens capture analysis is built into Pro.
Download for WindowsThe same toolkit, being built for Macs. This page will offer the package once it is signed and notarised; nothing is offered before then.
Before you install
Right-click the installer, choose Properties → Digital Signatures, and check it reads This digital signature is OK, issued through Microsoft ID Verified code signing. Then compare the SHA-256 below.
SHA-256 for release 2.2.1.63:ffbe1c4e0f2c7d68ad371dda09ec0900173fa1210c5e254010da2c2622d004c1
In PowerShell: Get-FileHash .\PacketEcho.exe
SmartScreen can show "Windows protected your PC" for a newly signed release until it builds reputation. Choose More info, check a verified publisher is shown and the SHA-256 matches, then Run anyway. If it says Unknown publisher or the hash differs, do not run it: tell us.
Your first investigation
Select your adapter and an authorised IP address, range or subnet, and choose a scan mode suited to the job.
Explore devices and ports, listen for LLDP and CDP, query supported switches with read-only SNMP, or open a capture in Capture Analysis.
Review the findings and topology evidence, then package them for your client or team with Pro reporting and the Site Packet.
Only need to open a capture? Packet Lens runs in your browser and the capture never leaves your machine. It comes with Packet Echo Pro, or $5 per person a month on its own. Meet Packet Lens.
