NDIS (Network Driver Interface Specification) allows differing transport protocols to communicate with the network adapters (and/or other hardware devices). NDIS accomplishes this by giving a specification to the Network Driver Architecture. As soon as the transport protocol communicates to the network adapter using these NDIS specifications, then the network adapter will be able to send/receive packets and other data over this network.  For all questions related to packet redirection NDIS or passthru NDIS modify concerns, please view Komdia’s free NDIS Guide.

Chris