NAT denial of service: An Analysis of translation table behavior on multiple platforms

Network Address Translation or NAT, is a technology that is used to translate internal addresses to globally routable addresses on the internet. It is used extensively in almost every network requiring global connectivity due to the current lack of IPv4 addresses. The primary mechanism used to facilitate the translation of internal addresses to external addresses and vice versa is the translation table. This study takes an in-depth look at how five different vendors: Cisco, Extreme, Linksys, VMWare, and Vyatta, implement the translation table during active NAT sessions. Additionally, this study analyzes the methodology required to fill a translation table and the Denial of Service that is a result of the attack. We consider the relative difficulty of accomplishing this task between the different platforms and protocols (TCP vs UDP vs ICMP). We conclude this study with steps that can be taken to prevent or mitigate the NAT DOS attack

Smart Power Strip

The Smart Power Strip revolutionizes all common power strips. Users have the ability to remotely toggle the individual outlets on the Smart Power Strip from a smart phone app and can also monitor how much energy the devices connected to the Smart Power Strip consume

Mobile robot electronic system with a network and micro-controller based interface

This paper describes the electronic system used to a mobile tank-robot and the network and micro-controlled based interface proceeding to drive it

Reliable transfer of data from ground to space

This paper describes the problems involved in uplink of data from control centers on the ground to spacecraft, and explores the solutions to those problems, past. present. and future. The evolution of this process, from simple commanding to transfer of large volumes of data and commands is traced. The need for reliable end-to-end protocols for commanding and file transfer is demonstrated, and the shortcomings of both existing telecommand protocols and commercial products to meet this need are discussed. Recent developments in commercial protocols that may be adaptable to the mentioned operations environment are surveyed, and current efforts to develop a suite of protocols for reliable transfer in this environment are presented

Enhancing TCP Performance in Mobile Ad Hoc Network Using Explicit Link Failure Notification (ELFN)

The dynamics and the unpredictable behaviour of a wireless mobile ad hoc network results in the hindrance of providing adequate reliability to network connections. Frequent route changes in the network relatively introduce incessant link failures which eventually degrade TCP performance considerably. In this research, we are going to study the potential improvement of TCP performance when Explicit Link Failure Notification is implemented as opposed to the standard TCP mechanism. ELFN modifies the ‘slow start’ mechanism that is used in standard TCP so that the throughput achieved from the network can be maximized

Study and Simulation of Enhancements for TCP (Transmission Control Protocol) Performance Over Noisy, High-Latency Links

The designers of the TCP/IP protocol suite explicitly included support of satellites in their design goals. The goal of the Internet Project was to design a protocol which could be layered over different networking technologies to allow them to be concatenated into an internet. The results of this project included two protocols, IP and TCP. IP is the protocol used by all elements in the network and it defines the standard packet format for IP datagrams. TCP is the end-to-end transport protocol commonly used between end systems on the Internet to derive a reliable bi-directional byte-pipe service from the underlying unreliable IP datagram service. Satellite links are explicitly mentioned in Vint Cerf's 2-page article which appeared in 1980 in CCR [2] to introduce the specifications for IP and TCP. In the past fifteen years, TCP has been demonstrated to work over many differing networking technologies, including over paths including satellites links. So if satellite links were in the minds of the designers from the beginning, what is the problem? The problem is that the performance of TCP has in some cases been disappointing. A goal of the authors of the original specification of TCP was to specify only enough behavior to ensure interoperability. The specification left a number of important decisions, in particular how much data is to be sent when, to the implementor. This was deliberately' done. By leaving performance-related decisions to the implementor, this would allow the protocol TCP to be tuned and adapted to different networks and situations in the future without the need to revise the specification of the protocol, or break interoperability. Interoperability would continue while future implementations would be allowed flexibility to adapt to needs which could not be anticipated at the time of the original protocol design

Vista: April 06, 2000

https://digital.sandiego.edu/vista/1239/thumbnail.jp

Performance analysis of poll-based retransmission schemes

Caption title.Includes bibliographical references (p. 23).Supported by the NSF, DARPA and ATT Bell Laboratories.Jane M. Simmons

Mobile robot electronic system with a network and microcontroller based interface

Integrated Masters at Electronics and Computers EngineeringNowadays mobile robots are expected to be a desire at several services to afford man facilities and increase safety in any kind of duties. Mobility is a key issue in robotics and a challenging subject for any research and development. It combines cognitive capabilities focused on sensorial input and human interaction with intelligent control of the drive systems and requires real mechatronics engineering solutions to enable robust and reliable operation. In the European Centre for Mechatronics [W1] mobile robots have been research subjects for years. A mobile platform with semi-autonomous functionality has been developed years ago. It has been used as a demonstration and test platform to study mobility and cognitive control. In the University of Minho [W3] and RWTH University [W2] that kind of research is also important and the industry support gives a solid development sign to the institutions. As the control system capacity on board of the vehicle has reached limits, a new system architecture with more powerful controller elements was planned to replace the old one. In this context the key objective of the project was to design and develop a new embedded system capable of controlling the mobile platform drives using ATMega microcontroller technology