socat - socat is a relay for bidirectional data transfer between two independent data channels.
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
Simple Port Forwarding - Simple Port Forwarding works with WebPages and not directly with your router.
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
AUTAPF - Reliable TCP and UDP port forwarding for Windows.
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.