The Ports tab displays a list of the current port service mappings, and lets you enable or disable UPnP port forwarding. To enable or disable UPnP port forwarding: Set UPnP port forwarding to ON to allow UPnP devices on your Fiber network to set their own port forwarding rules.
VRML (Virtual Reality Modeling Language) is a language for describing three-dimensional (3-D) image sequences and possible user interactions to go with them.
VR means Vibration Reduction. It is the Nikon counterpart of the Image Stabilization (IS) of other manufacturers. Definitely, the lens with VR is better than the one without. Source(s): I have a Nikon D60. The kit lens of D60s have VR.