This directory contains generic network interface device drivers thatdo not contain any hardware or architecture specific code. The filesare:etharp.c          Implements the ARP (Address Resolution Protocol) over          Ethernet. The code in this file should be used together with          Ethernet device drivers. Note that this module has been          largely made Ethernet independent so you should be able to          adapt this for other link layers (such as Firewire).ethernetif.c          An example of how an Ethernet device driver could look. This          file can be used as a "skeleton" for developing new Ethernet          network device drivers. It uses the etharp.c ARP code.loopif.c          An example network interface that shows how a "loopback"          interface would work. This is not really intended for actual          use, but as a very basic example of how initialization and          output functions work.slipif.c          A generic implementation of the SLIP (Serial Line IP)          protocol. It requires a sio (serial I/O) module to work.	  ppp/      Point-to-Point Protocol stack