Methods and arrangements for activating Internet Protocol (IP) configurations are discussed. Embodiments include transformations, code, state machines or other logic for activating in an end node an IP configuration suitable for IP communications between the end node and another end node upon the detection of a direct IP connection of the end node to another end node. In some embodiments, the other end node may have a direct IP connect only to the end node. In some embodiments, the suitable IP configuration may involve a static IP address which has been published. In some embodiments, detecting a direct IP connection with another node may be accomplished by detecting a crossed-over Ethernet connection. In some embodiments, an operating system device driver may activate the suitable IP configuration. In other embodiments, an embedded system may activate the suitable IP configuration.