From Verigio Communications:
This is a Swiss Army knife of port forwarding. It transforms network traffic whichever way imaginable. The traffic for forwarding is selected by a combination of: direction (incoming/outgoing), protocol (TCP/UDP), Port, IP (IPv4, IPv6, DNS name), MAC, and Network Adapter. Any of the above traffic addresses can be modified together or individually. The program goes beyond just forwarding and offers reflection of traffic back to the source on a local or a remote computer, with or without address transpose. An activity indicator associated with each rule conveniently shows the traffic being processed. The program provides high performance and efficient use of resources on computers running even the old operating systems.