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Authentication over Internet Protocol

Apiecionek Ł., Czerniak J. M., Romantowski M., Ewald D., Tsizh B., Zarzycki H., Dobrosielski W. T.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2020

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Vol. 68, nr 2

245--253

EN

Defending against DoS (denial of service) attacks has become a great challenge, especially for institutions that provide access to their services in the public network. State-of-the-art identity concealing tools and vast number of computers connected to the network require ensuring appropriate means for entities at risk to enable defence from the particular type of threats. This article presents a concept of user authentication in IP communication. The concept consists in providing the receiver with the possibility to determine sender՚s identity at the Internet layer level. This provides both the capability of defence against DoS attacks and possibility of utilizing the presented model over existing Internet network, which is directly responsible for transmission. The authors hope that the concept is a significant step in the perception of public network data transmission.

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Badanie wpływu przełączeń między stacjami bazowymi na transmisję pakietową IP w sieciach GPRS

Lech P., Purczyński J.

Logistyka

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2014

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nr 3

3681--3690

PL

W pracy przedstawiono wyniki badań nad wpływem przełączeń między stacjami bazowymi GSM (Global System for Mobile Communicatios) na zakłócenia i utratę transmisji pakietowej IP (Internet Protocol) w sieciach GPRS (General Packet Radio Service). Dla wielu systemów informatycznych spotykanych w logistyce korzystających z transmisji GPRS istotne jest niezawodne dostarczenie informacji. Badania przeprowadzono w rzeczywistych warunkach dla punktu pomiarowego będącego jednocześnie w zasięgu kilku stacji bazowych GSM. W pracy przedstawiono metodykę badań pozwalającą na opracowanie modeli statystycznych zakłóceń, które z powodzeniem można zastosować w symulacjach komputerowych lub w parametryzacji systemów kolejkowych. .W wyniku przeprowadzonych obliczeń została wykazana hipoteza, że empiryczny rozkład interwałów czasowych pomiędzy kolejnymi dwoma stanami awaryjnymi jest zgodny z rozkładem wykładniczym (wzór (3)). Ponadto, wykazano przydatność rozkładu Polya (wzór (24)) oraz dyskretnego rozkładu wykładniczego (wzór (12)) do modelowania empirycznego rozkładu odstępów czasowych pomiędzy awariami.

EN

The paper presents the results of research on the impact of switching between GSM (Global System for Mobile Communications) base stations on jamming and loss of IP (Internet Protocol) packet transmission in GPRS (General Packet Radio Service) networks. For many information systems encountered in logistics which use GPRS transmission, reliable provision of information is essential. The research was carried out in real conditions for the measuring point being within range of a few GSM base stations at the same time. This paper presents the research methodology that allows for the development of statistical models of interference which may be successfully applied in computer simulations or in parameterization of queuing systems. The conducted calculations confirmed the hypothesis that the empirical distribution of time intervals between two subsequent failure states fits an exponential distribution (equation (3)). Furthermore, the usefulness of Polya distribution (equation (24)) as well as a discrete exponential distribution (equation (12)) in modeling empirical distribution of time intervals between failures was confirmed.

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Design and evaluation of IP multipath transmission with feedback

Kawamoto T., Goto K.

Systems Science

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2009

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Vol. 35, no 2

73-79

EN

In this research, a simple multipath IP datagram transmission scheme is proposed and implemented as a user space router program. Delay and congestion vary along with time on each path and their estimation is difficult. In the proposed system, Multipath Tunneling Router (called MTR), traffic and delay of each path are periodically reported to the sender. An IP datagram is encapsulated in a UDP datagram and randomly transmitted to one of the paths according to the weight calculated with the feedback information from the receiving node. The path weight is based on the estimation of delay increase, which is measured as mean delay minus long term minimum delay of each path. The system is implemented as a user space tunneling router program on Linux and the performance is evaluated with a network emulator we have developed in a previous research. The program is rather small and consists of 1252 lines of codes in C++. The system is shown to be practical for two paths of different capacity and delay. Currently maximum throughput of the router implementation is about 65 Mbps with a single core CPU. It can be better with faster CPU.

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Planning the introduction of IPv6 in NATO

Goode R.

Journal of Telecommunications and Information Technology

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2006

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nr 3

33-37

EN

The NATO wide area network provides secure IP services to NATO commands and agencies, and offers information exchange gateways to nations and coalition operations. The IP services support the NATO-wide deployment of core automated information systems (AIS), and the placement of specific functional area services (e.g., intelligence, logistics, C2IS for the services, etc.) at commands. To maintain and improve interoperability within NATO and with partners, NATO will transition from version four of the Internet Protocol (IPv4) to version six (IPv6). The transition to IPv6 will involve the IP network, the information exchange gateways, the core AIS, the functional area services, and the supporting CIS infrastructure. The IPv6 naming and addressing plan being developed supports the NATO command structure and interoperability with NATO partners. The critical issue in the planning process is to support the incremental introduction of IPv6 whilst maintaining network security and reliable interworking with existing IPv4 systems and limiting increases in operations and maintenance costs. To minimise costs and maximise effectiveness NATO is planning the transition in a timescale that is commensurate with commercial adoption in NATO countries, the technology refreshment points for major systems, and the availability of IPv6 security components. New NATO projects will prepare for the transition by detailing their IPv6 upgrade path and procuring dual stack (IPv4 and IPv6) equipment. NATO will develop and adopt standardised approaches for IPv6 protocols and network design.