Products of NetworkActiv Software
Internet \ Misc. Network
Easily create a fault-tolerant network tunnel to back-end machines having no direct inbound access. Connect to multiple TCP and UDP ports on secured remote systems by having just one of them make a single TCP connection outbound. Intermix IPv4 and IPv6 addresses and interfaces as needed, enabling the access of IPv6 back-end addresses over an IPv4.
Free download of PortImport 2.0.6, size
Internet \ Networking
NetworkActiv AUTAPF is a solid yet accessible TCP and UDP port forwarding system for Windows. It keeps the data flowing whenever the network is ready and efficiently forwards many ports simultaneously. It can be configured both via a Windows-based interface and via a Web browser. It supports real-time, scriptable IP filtering and shows the current.
Free download of AUTAPF 2.0.2, size