PortImport

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 Internet connection or vice versa. Installation is optional, and both components use relative file paths for true portability. Front-end shows real-time data statistics while back-end shows a real-time event log. Both ends can be text-file scripted for turn-key tunnelling without user-interaction. Static-built native code requires no special frameworks or libraries. Both 32 and 64-bit builds are provided for maximum performance. Both components support running as system services, have full Unicode support, and were developed on Windows 8.1 to support the latest technology.

What is new in this release:

Version 2.0:

• User Access Control (UAC) compatibility for proper support of Windows Vista and higher.
• Changes to the appearance and function of buttons and dialogs.
• Polish translation added.
• German translation created.
• Improved compatibility for running on Wine (in Linux).
• Higher resolution program icon.
• Improved handling for running as a Windows service.
• Improved handling for system shutdown.
• Support for IPv6, including automatic handling of scoped addresses.
• Support for UDP port forwards.
• Option for local interface address re-use.
• Real-time on-screen session activity log for Daemon.
• Daemon can now save the session activity log.
• Extended status information, global and per-PFO, for Console.
• Further fault-tolerance options in Daemon.
• Bilateral support for a greater number of local interfaces.
• Adapter name display for easier identification of local interfaces.
• Basic chat system for Console-Daemon communication through session pipe.
• Remote-resolve system for resolving addresses on opposite end of tunnel.
• Option to limit maximum concurrent sessions for a given PFO.
• Local-interface monitoring system in Console for fault-tolerant binding.
• Session monitoring option in Console for improved fault-tolerance.
• Several glitches and bugs removed while improving all-around reliability.
• Automatic relative path technology for true portability.
• Many various other changes and improvements.

Limitations:

No service install of console, random nag screen