[luau] localhost connections

[Ray Strode]

>
>
>TCP/IP does not map to the OSI model in a one-to-one manner.  But many
>books consider the IP layer somewhere in the network layer of the OSI
>model, which is layer 3.  The thing is, the data link layer (which is
>layer 2) maps closer to TCP.  So TCP/IP kind of maps up-side-down to the
>OSI model.
>
Well TCP and IP are two different things and they don't fit in the same
layer.  TCP goes in the transport layer (4) and IP is the network layer 
(3). The
Data link layer (2) deals with the hardware address.  

Each layer of the OSI model is wrapped by the lower layers, so TCP is 
encapsulated
in IP, IP packets are then framed and sent out on the network (ethernet, 
atm, etc).

--Ray