Az ifconfig nélkül is van élet, egyébként meg micsoda meglepetés...:
"In Linux distributions based on 2.2.x Linux kernels, ifconfig, and the route command operated together to connect a computer to a network, and to define routes between networks. Distributions based on later kernels have deprecated ifconfig and route, replacing them with iproute2. iproute2 includes support for all functions of ifconfig(8) and route(8), as well as traffic-control (such as bandwidth shaping). ifconfig for Linux is part of the (no-longer maintained) net-tools package."
(Wikipedia)