Qualitative Comparison of 2-Dimensional and 3-Dimensional Directed Geographical IP Traceback with Generalization to N Directions

Several IP traceback schemes have been proposed to trace DoS/DDoS attacks that abuse the internet. A mechanism for IP traceback based on the geographic information rather than the traditional IP address information was proposed in [1], for 8 directions is a planar environment. Extension of this two dimensional directed geographical traceback to 2ⁿ [n≥4] directions is also available [2]. In this paper, the DGT scheme has been compared from 2 dimensional to 3 dimensional while considering all routers from the surface of the earth to the atmosphere with reality. The 2 dimension, though not having exactly equal interface, have nearly equal measures, and are identified using a novel scheme of Segment Direction Ratios (SDR). The SDR concept and the associated marking scheme allow the victim to defend against DDoS attacks independent of its ISP and also the generalization to DGT2n, having 2n directions (n>4). All the advantages (like robustness, fast convergence, independence etc.,) of the two dimensional DGT are available in the three dimensional scheme as well. The basic assumptions about the traffic and the network are the same as in [1].