Diploma thesis is focused on IPv6 protocol implementation in real company´s enviroment. In the beginning we are introduced with theoretical knowledge about this protocol. After analysis of current state of XXX spol s r.o. we can use this knowledge in practical part of thesis for proposal of possible solutions including physical devices.

The speed of computer network is increasing. One of the basic tasks which has to be solved by the network devices is longest prefix match. Many algorithms are able to solve this task but it's necessary to solve it very fast because of increasing transfer speed and the routing standard IPv6. This standard has longer addresses and it's necessary to search prefixes in much bigger sets. The thesis describes present algorithms that solve the problem. These are confronted with new algorithm HashTreeBitmap which is also described in the work. On the tests is documented that this algorithm is able to cope with high demands which are placed on it.

The goal of the project was to create independent system, which is able to supervise remote site using Ethernet network. It can measure temperature and check state of door magnetic contact. Gained information are sent over network to the cenral node, which is able to present them on web page. In the project are also discussed important network protocols needed for implementation of the system, hardware used for implementation and software of the system.

Internet är idag en enorm samling av information och möjligheter, där webbservrar bland annat finns placerade för att tillgängliggöra olika webbtjänster. Inom detta arbete har vi i samband med det internationella IT-företaget CGI utfört en analys på säkerhetsaspekter kring webbtjänsten Digital Portal (en självbetjäningsportal) som CGI byggde för att erbjuda tjänster till sina kunder. Denna analys fokuserar framför allt på den DMZ som portalen utnyttjar, vilket innebär säkerhetskrav, brister och risker hos uppställningen och till sist olika bekämpningsmetoder och åtgärder för dessa brister och risker. Vi utforskade frågor angående hur kraven uppfylls, vilka brister och åtgärder som finns i uppställningen. Eftersom CGI:s DMZ huvudsakligen bygger på IPv4 har vi i denna rapport även analyserat styrkor och svagheter för rent IPv6-baserade DMZ-uppställningar.  Inom detta arbete har vi studerat litteratur som behandlar säkerheten hos DMZ. Vi har analyserat de krav CGI ställer på sin egen DMZ för en självbetjäningsportal, där vi med det som referens utforskat risker och brister hos DMZ-uppställningar. Med hjälp av intervjuer av personal hos CGI har vi även fått direkt tillgång till tankar och detaljer som inte visar sig i dokumentationen, där vi kan få ett direkt intryck till motivationen vid utvecklingen av denna DMZ. Med denna metod har vi kunnat visa att alla de utforskade kraven uppfylls. Utöver detta har vi identifierat potentiella risker angående fildelning där endast filändelsen granskas vid färd till DMZ, samt filskanning som endast sker vid anländande till server. Vi har även kommit fram till att SSO kan ha bristfälligt skydd mot phishing- och DoS-attacker.

Am 29. und 30. November 2012 fand am Hasso-Plattner-Institut für Softwaresystemtechnik GmbH in Potsdam der 5. Deutsche IPv6 Gipfel 2012 statt, als dessen Dokumentation der vorliegende technische Report dient. Wie mit den vorhergegangenen nationalen IPv6 Gipfeln verfolgte der Deutsche IPv6-Rat auch mit dem 5. Gipfel, der unter dem Motto „IPv6- der Wachstumstreiber für die Deutsche Wirtschaft” stand, das Ziel, Einblicke in aktuelle Entwicklungen rund um den Einsatz von IPv6 zu geben. Unter anderem wurden die Vorzüge des neue Internetstandards IPv6 vorgestellt und über die Anwendung von IPv6 auf dem Massenmarkt, sowie den Einsatz von IPv6 in Unternehmen und in der öffentlichen Verwaltung referiert. Weitere Themen des Gipfels bezogen sich auf Aktionen und Bedingungen in Unternehmen und Privathaushalten, die für den Umstieg auf IPv6 notwendig sind und welche Erfahrungen dabei bereits gesammelt werden konnten. Neben Vorträgen des Bundesbeauftragten für Datenschutz Peter Schaar und des Geschäftsführers der Technik Telekom Deutschland GmbH, Bruno Jacobfeuerborn, wurden weiteren Beiträge hochrangiger Vertretern aus Politik, Wissenschaft und Wirtschaft präsentiert, die in diesem technischen Bericht zusammengestellt sind. / The 5th German IPv6 Summit took place at the Hasso Plattner Institute for Software System Engineering in Potsdam at November 29-30, 2012. This technical report is summarizing the talks and presentations and serves as a documentation of the summit. Like with previous IPv6 summits, the goal of this summit was to present current developments concerning the implementation of the new IPv6 technology from political and economic perspectives, as well as from a technological point of view. According to the motto "IPv6- der Wachstumstreiber für die Deutsche Wirtschaft", the advantages of the new Internet standards have been presented. Furthermore the application of IPv6 in industry, politics and administration has been discussed. The actions and procedures have been identified, which have to be applied for the change to IPv6 in industry and private households and gained experiences have been discussed. Besides presentations of the Federal Commissioner for Data Protection, Peter Schaar and Bruno Jacob Feuerborn, CTO at Deutsche Telekom, the summit was complemented by talks and presentations of high-ranking representatives from industry, government, and research.

Am 1. und 2. Dezember 2011 fand am Hasso-Plattner-Institut für Softwaresystemtechnik GmbH in Potsdam der 4. Deutsche IPv6 Gipfel 2011 statt, dessen Dokumentation der vorliegende technische Report dient. Wie mit den vorhergegangenen nationalen IPv6-Gipfeln verfolgte der Deutsche IPv6-Rat auch mit dem 4. Gipfel, der unter dem Motto „Online on the Road - Der neue Standard IPv6 als Treiber der mobilen Kommunikation” stand, das Ziel, Einblicke in aktuelle Entwicklungen rund um den Einsatz von IPv6 diesmal mit einem Fokus auf die automobile Vernetzung zu geben. Gleichzeitig wurde betont, den effizienten und flächendeckenden Umstieg auf IPv6 voranzutreiben, Erfahrungen mit dem Umstieg auf und dem Einsatz von IPv6 auszutauschen, Wirtschaft und öffentliche Verwaltung zu ermutigen und motivieren, IPv6-basierte Lösungen einzusetzen und das öffentliche Problembewusstsein für die Notwendigkeit des Umstiegs auf IPv6 zu erhöhen. Ehrengast war in diesem Jahr die EU-Kommissarin für die Digitale Agenda, Neelie Kroes deren Vortrag von weiteren Beiträgen hochrangiger Vertretern aus Politik, Wissenschaft und Wirtschaft ergänzt wurde. / This technical report is summarizing the talks and presentations of the 4th German IPv6 Summit 2011 at the Hasso Plattner Institute for Software System Engineering in Potsdam on December 1./2. 2011. The goal of this summit was to present current developments concerning the implementation of the new IPv6 technology from political and economic perspectives, as well as from a technological point of view. According to the motto 'Online on the Road - The New Technology Standard IPv6 as Driving Force for Mobile Communications" this year's focus was on automobile networking and communication. This year's guest of honor was EU commissioner for Digital Agenda Neelie Kroes. Besides her, the conference was complemented by talks and presentations of high-ranking representatives from industry, government, and research.

Project is focused to development of security unit for security of homes, flats and other similar spaces against intruders (thieves). Design is focused to solution of hardware and firmware for security units and their control software for PC. Hardware design solve supply over ethernet PoE, backup of supply, connection securities sensors to security unit. Firmware prevents failure of units and it is communicating with sensors and PC. Software in PC provides settings of security units, deactivating of alarm and measure temperature by security unit.

Currently, the IPv4 protocol is heavily used by institutions, companies and individuals, but every day there is a higher number of devices connected to the network such as home appliances, mobile phones or tablets. Each machine or device needs to have its own IP address to communicate with other machines connected to Internet. This implies the need for multiple IP addresses for a single user and the current protocol begins to show some deficiencies due to IPv4 address space exhaustion. Therefore, for several years experts have been working on an IP protocol update: the IPv6 128-bit version can address up to about 340 quadrillion system devices concurrently. With IPv6, today, every person on the planet could have millions of devices simultaneously connected to the Internet. The choice of the IP protocol version affects the performance of the UMTS mobile network and the browsers as well. The aim of the project is to measure how the IPv6 protocol performs compared to the previous IPv4 protocol. It is expected that the IPv6 protocol generates a smaller amount of signalling and less time is required to fully load a web page. We have analysed some KPIs (IP data, signalling, web load time and battery) in lab environment using Smartphones, to observe the behaviour of both, the network and the device.  The main conclusion of the thesis is that IPv6 really behaves as expected and generates savings in signalling, although the IP data generated is larger due to the size of the headers. However, there is still much work as only the most important webpages and the applications with a high level of market penetration operate well over the IPv6 protocol. / Cada día existe un mayor número de dispositivos conectados a la red, tales como electrodomésticos, teléfonos móviles inteligentes o tabletas, por lo que la red debe evolucionar constantemente y ser capaz de proveer servicio a todos los usuarios. Cada equipo necesita tener su propia dirección IP para comunicarse con otras máquinas conectadas a Internet, por lo que es necesario tener un gran número de direcciones IP y la versión del protocolo actual comienza a mostrar algunas deficiencias (debido fundamentalmente al agotamiento del espacio de direccionamiento IPv4 y algunas funciones de seguridad que han quedado obsoletas). Desde hace varios años, los expertos están trabajando en una actualización del protocolo IP: la versión seis (llamada IPv6) que utiliza 128 bits para el direccionamiento pudiendo administrar simultáneamente hasta unos 340 trillones de dispositivos al mismo tiempo. La elección de la versión del protocolo IP afecta al comportamiento de la red móvil, ya que los expertos todavía están optimizando y realizando cambios en la arquitectura de red y en los dispositivos para soportar el protocolo IPv6. El objetivo del proyecto consiste en comparar y evaluar las diferentes versiones del protocolo IP utilizado, en gran medida, para acceder a la red de internet. La principal conclusión del proyecto es que IPv6 realmente se comporta como se espera y genera ahorros en la señalización, aunque los datos IP generados son mayores. Sin embargo, aún queda mucho trabajo por hacer, ya que sólo las páginas más importantes y las aplicaciones más utilizadas por los usuarios funcionan bien sobre el protocolo IPv6.

This masters thesis describes simulation of network using Network Simulator. Model of network and description of simulation is extracted from the analysis of configuration files of active network devices, and translated by a parser. Concept and implementation of the parser is described here. Because IPv4 addressing is not supported in Network Simulator, it was added as a new module. The Network Simulator is also extended by filtering properties of packets using access control lists. Practical usage of the implemented modules is demonstrated on a simulation of real network.

Approved for public release, distribution is unlimited / Internet Protocol version six (IPv6), the next generation Internet Protocol, exists sparsely in today's world. However, as it gains popularity, it will grow into a vital part of the Internet and communications technology in general. Many large organizations, including the Department of Defense, are working toward deploying IPv6 in many varied applications. This thesis focuses on the design and implementation issues that accompany a migration from Internet Protocol version four (IPv4) to IPv6 in the Monterey Security Enhanced Architecture (MYSEA). The research for this thesis consists of two major parts: a functional comparison between the IPv6 and IPv4 designs, and a prototype implementation of MYSEA with IPv6. The current MYSEA prototype relies on a subset of Network Address Translation (NAT) functionality to support the network's operation; and, due to the fact that IPv6 has no native support for NAT, this work also requires the creation of a similar mechanism for IPv6. This thesis provides a preliminary examination of IPv6 in MYSEA, which is a necessary step in determining whether the new protocol will assist with or detract from the enforcement of MYSEA policies. / Ensign, United States Navy