Download of Port Mapper 2.0.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Internet & Network Tools, more precisely Network tools. The actual developer of this software for Mac is Bitten Apps. We recommend checking the downloaded files with any free antivirus.
From the developer:
Port Mapper will automatically connect to your router and do all the port forwarding for you automagically, even if you change routers. The appmakes use of TCMPortMapper. The only requirement is that NAT-PMP or uPnP is enabled on the router, which is supported by most and enabled by default.
You may want to check out more Mac applications, such as PortMapper, Port Map or Function Keys Mapper, which might be related to Port Mapper.
Network Tools
System Optimization