Abstract-VoIP networks are in a major deployment phase and are becoming widely spread out due to their extended functionality and cost efficiency. Meanwhile, as VoIP traffic is transported over the Internet, it is the target of a range of attacks that can jeopardize its proper functionality. In this paper we describe our work in a VoIP specific security assessment framework. Such an assessment is automated with integrated discovery actions, data management and security attacks allowing to perform VoIP specific penetration tests. These tests are important because they permit to search and detect existing vulnerabilities or misconfigured devices and services. Our main contributions consist in an elaborated network information model capable to be used in VoIP assessment, an extensible assessment architecture and its implementation, as well as in a comprehensive framework for defining and composing VoIP specific attacks.

Abstract. We present a dynamic and self-organized flow monitoring framework in Wireless Mesh Networks. An algorithmic mechanism that allows for an autonomic organization of the probes plane is investigated, with the goal of monitoring all the flows in the backbone of the mesh network accurately and robustly, while minimizing the overhead introduced by the monitoring architecture. The architecture of the system is presented, the probe organization protocol is explained and the performance of the monitoring framework is evaluated by simulation.

Abstract-We propose a distributed monitoring scheme for an ad-hoc/MESH network topology, and design a Distributed Hash Table based Peer-to-Peer system to log the topology information. A manager can rebuild a model of the network topology at any time in the past of its history by querying any node in the network. Merging and splitting of the monitoring overlays over time are supported by our protocol.