Wifi Router Manager - Wifi Router Manager is a free-to-use network tool application that is providing the complete visibility of your wifi network from signal strength, security to IP addresses.

socat - socat is a relay for bidirectional data transfer between two independent data channels.

NetCut - NetCut is a Software that helps you admin your network by purely on ARP protocol.

PortMapper - Do you need to map a specific TCP or UDP port on your machine to another port on another machine?

SoftPerfect WiFi Guard - Security of your Wi-Fi network for Windows, macOS and Linux

Simple Port Forwarding - Simple Port Forwarding works with WebPages and not directly with your router.