• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1121-1124
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• 2000

본 논문은 기존의 IPv4 인터넷 망에 새로 도입될 IPv6 망을 어떻게 연동할 것인가에 대한 구체적인 연동 방안으로 Application 레벨의 Translation Proxy를 구현하였다. 구현된 PTM(Proxy based IPv4/IPv6 Translation Mechanism)은 응용 계층에서 연동을 지원하므로 기존 인터넷 망에서 특별한 Network 구조나 사용자 Application의 수정 없이 IPv6 망과의 연동을 할 수 있게 하였다. 또한 본 논문에서는 기본적인 성능 실험을 통하여 PTM의 Capability를 도출하였다. 본 논문의 결과는 IPv6를 도입함에 있어서 상당 기간동안 IPv4 망과의 병존이 예상되므로, IPv4 망과의 유연한 연동 없이는 성공적인 IPv6로의 진화가 불가능하다는 관점에서 그 중요성이 강조된다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.595-597
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• 2003

유럽지역에서의 현재 및 차세대 이동통신의 규격화를 추진하고 있는 3GPP(3$^{rd}$ generation partnership project)의 경우, 부족한 단말의 주소 및 네트워킹의 향상성을 위해 적극적으로 IPv6의 도입을 추진하고 있는 상황이다. 한편 IPv6 자체의 규격은 IETF(Internet Engineering Task Force)에서 진행하고 있는데, 현재 상황의 경우 3GPP에서 IPv6할당의 규격은 IETF의 규격과 완전호환이 되어 있지않아 IETF가 권고안을 마련한 상태이다. 본 논문은 이러한 상태에서 IETF의 권고안을 만족하는 3GPP네트워크에서의 IPv6주소 할당 방식을 제안한다.

• Journal of Korea Society of Industrial Information Systems
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• v.10 no.2
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• pp.67-75
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• 2005

In this paper, we design and implement real time IP security packet analyzer on IPv4 and IPv6 network. This packet analyzer sniffs and analyzes the packets generated by the protocols that are used by IPsec, IKE, IPv4 and IPv6 such as AH, ESP, ISAKMP, IP, ICMP and so on. The purpose of this analyzer is to check current security status of the network automatically. In this paper we provide implementation details and the examples of security evaluation by using our security packet analyzer system.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.159-162
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• 2007

최근 IPv6 기반 WiBro 망에서 다수의 사용자가 동종망간 혹은 이기종망간 인터넷 연결을 유지하면서 그룹으로 이동하는 상황에서의 핸드오버 처리 폭증 및 핸드오버 지연 시간 문제를 효율적으로 해결할수 있는 기술 및 시스템이 요구되어 지고 있다. 본 이동 AP는 IPv6 기반 WiBro 망에서 다양한 광대역무선망 접속 및 다양한 하향 단말 접속이 가능한 하드웨어 기반에 네트워크 이동성 기술를 구현하여 IPv6 기반 WiBro 네트워크 실, 내외 환경에서 이동성을 지원하지 않는 다수의 단말들이 네트워크 이동시 각 단말들의 이동성 처리가 수행됨을 확인하였으며 관련 서비스 연속성이 유지됨을 시험을 통해 확인 할 수 있었다.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.385-387
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• 2006

The rapidly development of computing environments and the spread of Internet make possible to obtain and use of information easily. The IPv6 environment combined the home network and All-IP Network with has arrived, the damages cased by the attacks from the worm attacks and the various virus has been increased. the In this paper, intrusion detection method using Attack Detection Algorithm Using Bayesian Techniques on the IPv6 Environment.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.1049-1052
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• 2003

A home network system was implemented using IPv6 and SIP. We integrated different kinds of home devices into IPv6 address system, and built control system independent of controller's address and location, using SIP. Also, controllers can download each device centrol messages without any global definition of handling it. We implemented this system by home device emulator, and PDA controller to control home devices.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1545-1549
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• 2005

According as computer is supplied in a lot of homes and offices and Internet use increases, various service based on the Internet. Including wireless PDA in the future, many devices such as Internet telephone, TV, refrigerator and oven will be connected on the Internet and Internet address exhaustion will be raised to serious problem gradually. Today, the IPv4 address exhaustion problem has been solved partially using NAT (Network Address Translation) however, the transition to next Generation Internet will be accelerated because of advantages such as mobility, security service, QoS, and abundant IP addresses. In IPv6, all hosts are designed to create and set their address automatically without manager's intervention using Neighbor Discovery Protocol. But, when an IPv6 host sets its address automatically, there are serious security vulnerabilities. In this paper, we analysis security vulnerabilities in auto-configuration and provide security requirements for secure auto-configuration.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.273-278
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• 2007

In the next generation wireless mobile network, various methods are studied to offer interworking and mobility between various radio networks. To offer these harmoniously, network adaptation methods based on IP is generalized, and specifications of host-based mobility method with Mobile IPv4 and Mobile IPv6 to offer IP's mobility are defined in IETF specially. However, it is insufficient to satisfy quality of service that should be offered in wireless mobile network environment. Alternatively studies about Network-Based Mobility of Proxy Mobile IPv4, Proxy Mobile IPv6 etc. are preceded. This paper presents optimum plan that can offer mobility in the next generation radio transfer communication network by comparing and analyzing IP mobility methods divided by Host-based Mobility and Network-based Mobility.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.12C
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• pp.1245-1250
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• 2002

For recent years, the environment of use on internet has been changed from the wired internet access to the wireless internet access increasingly, and the use of real time application data has been increased. Therefore the research and evolution of wireless network for providing of user's mobility and QoS at the same time must be essential. IETF already proposed Mobile IPv6 for providing mobility and RSVP for QoS through resource reservation. These future are expected to be used not only wired network but also wireless network. But there are not yet proposed the integration and efficient interworking of two mechanism. For the solution of problem on efficient interworking issue, for instance signaling overhead and reservation delay increasing due to often handoff, this paper first proposed to use of IETF Cellular IP based on Mobile IPv6 for wireless network model with fast mobility and a improved RSVP mechanism using the flow label field in IPv6 header.

• Journal of Information Processing Systems
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• v.5 no.2
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• pp.97-104
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• 2009

In this paper we propose a Differentiated Services Based Admission Control and Routing Algorithm for IPv6 (ACMRA). The basic DiffServ architecture lacks an admission control mechanism, the injection of more QoS sensitive traffic into the network can cause congestion at the core of the network. Our Differentiated Services Based Admission Control and Routing Algorithm for IPv6 combines the admission control phase with the route finding phase, and our routing protocol has been designed in a way to work alongside DiffServ based networks. The Differentiated Services Based Admission Control and Routing Algorithm for IPv6 constructs label switched paths in order to provide rigorous QoS provisioning. We have conducted extensive simulations to validate the effectiveness and efficiency of our proposed admission control and routing algorithm. Simulation Results show that the Differentiated Services Based Admission Control and Routing Algorithm for IPv6 provides an excellent packet delivery ratio, reduces the control packets' overhead, and makes use of the resources present on multiple paths to the destination network, while almost each admitted flow shows compliance with its Service Level Agreement.