Abstract This guide provides an overview of many of the tools available for IP network administration of the linux operating system, kernels in the 2.2 and 2.4 series. It covers Ethernet, ARP, IP routing, NAT, and other topics central to the management of IP networks. List of Examples 1.1. Sample ifconfig output1.2. Testing reachability of a locally connected host with ping1.3. Testing reachabilit