Mac users interested in Intel tools for upnp technology generally download:
Lighthouse is a dynamic port forwarding utility, allowing you to enable and disable port forwardings with just a single click. Both NAT/PMP (Apple Airport base stations) and UPnP (D-Link, Linksys, Netgear) protocols are supported.
Requirements : PPC / Intel, Mac OS X 10.4 or later (compatible with Leopard, Snow Leopard)
