NetCut - NetCut is a Software that helps you admin your network by purely on ARP protocol.
socat - socat is a relay for bidirectional data transfer between two independent data channels.
WifiKill - App with ability to block other devices from network
Komodia Relay - Free open source tool to perform TCP based session relay
TuxCut - TuxCut is a netcut "in Windows OS" like software written in PyQt.
PortMapper - Do you need to map a specific TCP or UDP port on your machine to another port on another machine?