Short description of FREE PacketTrap Ping Scan 2.3.11: PacketTrap (https://www.PacketTrap.com) Ping Scan is a FREE utility that sends ICMP ECHO requests across a network and rapidly builds a spreadsheet of responding nodes. DNS lookup information may optionally be provided by Ping Scan for each responding address. Ping Scan is part of the pt360 Tool Suite - network monitoring and diagnostic tools in a single interface.