Additionally, the software can display each client’s network card vendor, port speed, and the counters of erroneous and discarded frames for every port. This can be of good assistance when troubleshooting network connectivity issues.

Key features:
Discovers managed switches by scanning your network.
Shows what is connected to every switch port in a simple table format.
Pulls ARP table from a router to display IP information of connected clients.
Scans the current subnet for MAC-to-IP address mappings if there is no router.
Comes in two editions: a GUI application and a console application for using in scripts.
Fully supports SNMPv1, SNMPv2c and SNMPv3, including bulk operations.

Operating System: Windows 7 through Windows 11, Windows Server 2008 R2 through 2022

Home Page - https://www.softperfect.com/products/portmapper/