Connect to UDP and TCP ports on back-end machines lacking inbound access.
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
Did you experience problems downloading PortImport? Please check your firewall settings, because some download mirrors may require that you do not block the HTTP referers. For more information please read our Download Guide.
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Info : Shareware is basically "try before you buy" software. Unlike software marketed through normal retail channels, where you are forced to pay for the product before you"ve even seen it, the shareware concept lets you try a program for a period of time before you buy it. Once you have tried a shareware program, you know whether it will meet your needs before you pay for it.