Nt1310 Unit 3 Assignment 1 Traffic Analysis

the routing protocol is simply flooding, S will broadest the data packets and then these data packets are rebroadcasted by every neighbor of S, and

False Data Insertion: - An adversary can compromise existing nodes and inject a false message with false information. It is also possible that the adversary add new nodes to the sensor networks that feed false data. Such attack also consumes the energy resources of other sensor nodes.

In a figure all ways from S to D incorporate hosts that are outside the request zone. Accordingly, there is no surety that a way can be discovered comprising just of the hosts in a picked request zone. In this manner, if a route is not found inside of a suitable timeout period, our convention Wows S to start another route disclosure with an extended request zone – in our simulations, the extended zone incorporates the whole system space. in this case the inactivity in deciding the route to D be longer.

Answer the following questions based on the packet capture that precedes them. You may research any of these on the Internet if you need to do so.

In this example, here node A wants to send data packets to node D and starts to find the shortest path for its destination, so if node D is a malicious node then it will show that it has active route to the specified destination. It will then send the response In the example, data packets transfer in a hierarchic data center network. The link capacity is 1000 kb/s. The number on each is the traffic load. The distribution of traffic is based on equal cost multi-path (ECMP). In figure 8, we can see that the 3). Congestions

This protocol use Dijkstra algorithm. It maintains a complex data base, also called as link state database, which contains full information about the remote routers and the exact network topology. The goal from this protocol is to provide similar information about network connection to each router, so each router can calculate the best route to each network this is happen when each router generates information about itself and pass these information to other routers in the network so each router make a copy of this information without changing it.

A malicious node can impersonate or spoof the address of another node in order to alter the vision of the network topology as perceived by another node. Such attacks can result in the formation of loops as described below [18]

Paths with non-zero flow amounts from origin to destination are known, which is mix of violator and common public. As model under investigation need information about all paths and relative flows for each OD (origin-destination) pair of the network.

After that, it uses the concept of Bloom filter. Bloom filter is a data structure used to test whether an element is a member of a given set or not. It has a two-dimensional bin table of k levels by m bins with k independent hash functions. It is used to keep track of the recent arrival rates of packets of different destination IP addresses passing through a router within a sampling period t as shown in fig. 4.2. In proposed system, it stores the IP address in data structure and checks it on the behalf of misuse detection method. Once whole of the information is derived, the complete data is analyzed statistically by using association between the nodes respective to the current node.

Exploitation of this bug does not leave any trace of anything abnormal happening to the logs. Although the heartbeat can appear in different phases of the connection setup, intrusion detection and prevention systems (IDS/IPS) rules to detect heartbeat have been developed. Due to encryption differentiating between legitimate use and attack cannot be based on the content of the request, but the attack may be detected by comparing the size of the request against the size of the reply. This implies that IDS/IPS can be programmed to detect the attack

Dougherty, C., Householder, A., & Houle, K. (2002). Computer attack trends challenge Internet security. Computer, 35(4), 0005-7.

Privacy threats are currently the biggest threat to National Security today. The threats are not only concerning to the government, however. An alarming 92% of Americans are concerned that the power grid may be vulnerable to a cyber-attack (Denholm). Although this is a more recent development to the cyber threats we have experienced, this is not the first time that privacy threats have stepped into the limelight as people are forced to watch their every online move.

The internet is a medium that is becoming progressively important as it makes information available in a quick and easy manner. It has transformed communications and acts as a global network that allows people to communicate and interact without being limited by time, boarders and distance. However, the infrastructure is vulnerable to hackers who use the system to commit cyber crime. To accomplish this, they make use of innovative stealth techniques for their malicious purposes in the internet.

To address the internal unlinkan\bility and increase the robustness of the DoS attacks, different authors have proposed a decentralized protocol that will co-ordinate the coin theft. The high mixing times also requires the separate honest peer mixings.

A Mechanism for Detection of Cooperative part attack in Mobile Ad Hoc Networks “Jaydip Sen ; Sripad Koilakonda ; Arijit Ukil” A mobile impromptu network (MANET) could also be a assortment of autonomous nodes that communicate with one another by forming a multi-hop radio network and maintaining connections in an extremely localized manner. Security remains a significant challenge for these networks due to their choice of open medium, properly dynamical topologies, reliance on cooperative algorithms, absence of centralized observation points, and lack of clear lines of defense. Most of the routing protocols for MANETs are so in danger of various types of attacks. impromptu on-demand distance vector routing (AODV) could also very