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公开(公告)号：KR100922581B1
公开(公告)日：2009-10-21
申请号：KR1020070068087
申请日：2007-07-06
Applicant: 한국전자통신연구원
Abstract: 본 발명은, IPv6 이동 단말에서 서로 다른 기종의 다중 무선 인터페이스를 이용하여 끊김 없는(Seamless) 이동성을 지원하기 위한 방법 및 장치에 관한 것으로서, 다중 무선 인터페이스를 갖는 이동 단말이 각 인터페이스 무선 링크 상태를 주기적으로 검색하고, 대기 인터페이스에 대한 하나의 접속점을 선택하여 L2 협약을 하며, 활성 및 대기 인터페이스에 대한 터널을 생성하고, 상기 활성 및 대기 인터페이스의 무선 링크 상태에 따라 활성/대기 인터페이스를 변경하여 상기 생성된 터널을 절체함으로써 이종망 간에 끊김 없는 이동성을 지원할 수 있으며, 이에 따라 L2 핸드오버 시간과 L3 핸드오버 지연 시간을 줄임으로써 전체적인 핸드오버 시간을 최적화함으로써 액세스 라우터에서 기능 변경 또는 추가 요구 없이 빠른 핸드오버를 지원할 수 있는 효과가 있다.
핸드오버, 다중 무선 인터페이스, 끊김없는 이동성, 활성 상태, 대기 상태, 개시 상태, 주제어부, 인터페이스 핸드오버 처리부, 검색부-
公开(公告)号：KR1020090065322A
公开(公告)日：2009-06-22
申请号：KR1020070132815
申请日：2007-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04W76/22 , H04W80/045 , H04W8/02 , H04W8/22 , H04W36/0055 , H04W36/14
Abstract: A method for supporting mobility by using a security tunnel is provided to supply mobility to an external network and mobility inside a network while guaranteeing security of a small network. When a connected terminal moves, a mobility support apparatus generates a standby tunnel according to a request of the terminal(S660). A tunnel pre-generated in the terminal is compared with stability of the standby tunnel(S710). When connection to the terminal is changed to the stable standby tunnel, the standby channel is changed into an active tunnel(S770). And a service used in the terminal is provided through the standby tunnel.
Abstract translation: 提供了一种通过使用安全隧道来支持移动性的方法，以便在保证小型网络的安全性的同时向外部网络提供移动性和网络内的移动性。 当连接终端移动时，移动性支持装置根据终端的请求生成备用隧道（S660）。 在终端中预先生成的隧道与备用隧道的稳定性进行比较（S710）。 当与终端的连接更改为稳定备用通道时，备用通道将更改为活动通道（S770）。 并且通过备用隧道提供终端中使用的业务。
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公开(公告)号：KR1020090064285A
公开(公告)日：2009-06-18
申请号：KR1020080080034
申请日：2008-08-14
Applicant: 한국전자통신연구원
CPC classification number: H04W36/0022 , H04W76/22 , H04L29/06142
Abstract: A seamless handover control method between heterogeneous networks for preventing data loss and guaranteeing the continuity of a service and an apparatus thereof are provided to perform the continuity of the service by using a tunnel switching function. An interface management module of a mobile terminal compares the radio signal of an active interface and the radio signal of a standby interface(S710). A switching point of time of the tunnel for changing the standby tunnel into the active tunnel is determined. A tunneling protocol module requests the change over of tunnel as the control server through the standby tunnel(S720). The handover of the mobile terminal is performed by changing the standby tunnel(S735). The mobile terminal received through the existing active tunnel is received through the new active tunnel(S745).
Abstract translation: 提供用于防止数据丢失并保证业务连续性的异构网络之间的无缝切换控制方法及其装置，以通过使用隧道切换功能来执行服务的连续性。 移动终端的接口管理模块将活动接口的无线信号与备用接口的无线信号进行比较（S710）。 确定用于将备用隧道更改为活动隧道的隧道的切换时间点。 隧道协议模块通过备用隧道请求隧道更改为控制服务器（S720）。 通过改变备用隧道来执行移动终端的切换（S735）。 通过现有活动隧道接收的移动终端通过新的主动隧道接收（S745）。
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公开(公告)号：KR1020080052307A
公开(公告)日：2008-06-11
申请号：KR1020070089929
申请日：2007-09-05
Applicant: 한국전자통신연구원
CPC classification number: H04L61/2592 , H04L61/2015 , H04L61/251
Abstract: A method and an apparatus for configuring different kinds of network communications are provided to have a tunnel address conversion server and a tunnel configuration server and change the software only, thereby communicating with a relation between not only IPv4-terminals but also an IPv6-terminal and an IPv4-terminal through a gateway by using IPv6 applications. An address assignment unit(810) assigns an IPv4 address and an IPv6 address to each terminal within different kinds of networks. An address changing unit(820) reports the IPv4 address changed according to the movement of the terminal from the IPv6 address of the terminal on the basis of two assigned IP addresses. A transceiver(830) transmits the IPv4 address of a second terminal recognized on the basis of the IPv6 address of the second terminal to a first terminal.
Abstract translation: 提供了一种用于配置不同种类的网络通信的方法和装置，以具有隧道地址转换服务器和隧道配置服务器，并且仅改变软件，由此不仅与IPv4终端之间的关系而且与IPv6终端和 通过IPv6应用通过网关的IPv4终端。 地址分配单元（810）向不同种类的网络内的每个终端分配IPv4地址和IPv6地址。 地址改变单元（820）基于两个分配的IP地址，根据终端的IPv6地址，根据终端的移动来报告IPv4地址的变化。 收发机（830）将基于第二终端的IPv6地址识别的第二终端的IPv4地址发送到第一终端。
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公开(公告)号：KR1020080050290A
公开(公告)日：2008-06-05
申请号：KR1020070094721
申请日：2007-09-18
Applicant: 한국전자통신연구원
Abstract: A security method of a server-based mobile IPv6(Internet Protocol version 6) system is provided to protect a message from an attack by exchanging keys using a changed PAK(Password-based Authentication Key). Mobile nodes(10a,10b) exchanges security elements which are required for a key exchange, a mutual authentication, and an SA(Security Association), with a server(20) by using a modified PAK. The mobile nodes and the server set an SPD(Security Policy Database) and an SAD(Security Association Database) for an IPsec(Internet Protocol Security) tunnel. When the PAK exchange is completed, a reliable tunnel is formed between the first mobile node and the server. The first mobile node requests a similar key to the server for a reliable communication with a second mobile node. The modified PAK is exchanged between the mobile nodes by using the similar key from the server as a password.
Abstract translation: 提供基于服务器的移动IPv6（因特网协议版本6）系统的安全方法，以通过使用改变的PAK（基于密码的认证密钥）交换密钥来保护消息免受攻击。 移动节点（10a，10b）通过使用修改的PAK与服务器（20）交换密钥交换，相互认证和SA（安全关联）所需的安全元件。 移动节点和服务器为IPsec（Internet协议安全）隧道设置SPD（安全策略数据库）和SAD（安全关联数据库）。 当PAK交换完成时，在第一移动节点和服务器之间形成可靠的隧道。 第一移动节点向服务器请求类似的密钥以与第二移动节点的可靠通信。 通过使用来自服务器的类似密钥作为密码，在移动节点之间交换修改的PAK。
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Patent Agency Ranking
公开(公告)号：KR1020080050280A
公开(公告)日：2008-06-05
申请号：KR1020070087864
申请日：2007-08-30
Applicant: 한국전자통신연구원
IPC: H04L12/66
Abstract: A mobility supporting system and a seamless mobility supporting method using a wireless multi-interface in the system are provided to support fast handover without requesting changing or adding of a function in an AR(Access Router). A mobile terminal(10) searches connection points connected to each interface to determine an optimum connection point, makes a second layer agreement and configures an Internet protocol address to the optimum connection point, requests generation of a standby tunnel and an active tunnel for communication from an interface of the optimum connection point and generates the standby and active tunnels according to a response, and allocates binding information according to binding update. An xGMIP mobility server(30) transmits a response to the request for generating the standby and active tunnels received from the mobile terminal, allocates the binding information according to the binding update request, and transmits the binding information to the mobile terminal.
Abstract translation: 提供了一种使用系统中的无线多接口的移动性支持系统和无缝移动性支持方法，以支持快速切换，而无需请求改变或添加AR（接入路由器）中的功能。 移动终端（10）搜索连接到每个接口的连接点，以确定最佳连接点，进行第二层协议并将互联网协议地址配置到最佳连接点，请求产生备用隧道和用于通信的活动隧道 最佳连接点的接口，并根据响应生成备用和主动隧道，并根据绑定更新分配绑定信息。 xGMIP移动性服务器（30）对从移动终端接收的生成待机和主动隧道的请求发送响应，根据绑定更新请求分配绑定信息，并将绑定信息发送给移动终端。
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127.发明公开인터넷 프로토콜 버전 4 네트워크의 서버에서의 터널네트워크인터페이스 구축 및 터널네트워크인터페이스를 이용한 패킷 송/수신 방법 有权使用隧道网络接口在IPV4网络服务器中创建隧道网络接口和传输/接收分组的方法
公开(公告)号：KR1020080050199A
公开(公告)日：2008-06-05
申请号：KR1020070035572
申请日：2007-04-11
Applicant: 한국전자통신연구원
CPC classification number: H04L61/2592 , H04L61/2084 , H04L61/251
Abstract: A method for constructing a tunnel network interface in a server of an IPv4 network and transmitting/receiving packets by using a tunnel network interface are provided to transmit/receive packets to/from each terminal by using a single tunnel network interface established in an OS(Operating System) of a server. When a new terminal attempts a connection(201), a server establishes information for the new terminal in a single tunnel network interface(202). The server sets an output network interface with respect to an IPv6 address of the new terminal as the tunnel network interface(203), and establishes a tunnel for the new terminal(204). The server checks whether there is a request for transmission of an IPv6 packet from an application program(205). If there is a request for transmission of an IPv6 packet, the server searches an IPv4 address and UDP port information by using destination IPv6 information as a key value(206), establishes an IPv4 or IPv6_UDP header by using the searched IPv4 information and transfers it to an IPv4 stack(207). The server transmits the packet transferred via the IPv4 stack to a corresponding terminal(208). The server checks whether an IPv4 packet has been received from an arbitrary terminal located in an IPv4 network(209). If an IPv4 packet has been received, the server checks whether the received packet is an IPv6 or UDP_IPv6 tunneling packet(210). If the received packet is the IPv6 or UDP_IPv6 tunneling packet and if the received packet has been tunneled to an IPv4 header, the server removes the IPv4 header, and if the received packet has been tunneled to an IPv4_UDP, the server removes a UD P header from a UDP stack(212). The server sets a packet reception interface as a tunnel network interface(213) and transfers the IPv4 header or IPv4_UDP header-deleted IPv6 packet to a reception processing routine of the tunnel network interface(214).
Abstract translation: 提供一种用于在IPv4网络的服务器中构建隧道网络接口并通过使用隧道网络接口发送/接收分组的方法，用于通过使用在OS中建立的单个隧道网络接口向/从每个终端发送/接收分组（ 操作系统）。 当新终端尝试连接（201）时，服务器在单个隧道网络接口（202）中为新终端建立信息。 服务器将新终端的IPv6地址的输出网络接口设置为隧道网络接口（203），并为新终端（204）建立隧道。 服务器检查是否存在来自应用程序的传输IPv6分组的请求（205）。 如果存在IPv6数据包传输请求，服务器将使用目的地IPv6信息作为密钥值搜索IPv4地址和UDP端口信息（206），通过使用搜索到的IPv4信息建立IPv4或IPv6_UDP报头，并将其传输 到一个IPv4堆栈（207）。 服务器将经由IPv4堆栈传送的分组发送到相应的终端（208）。 服务器检查是否已经从位于IPv4网络中的任意终端接收到IPv4分组（209）。 如果已经接收到IPv4分组，则服务器检查所接收的分组是否是IPv6或UDP_IPv6隧道分组（210）。 如果接收到的报文是IPv6或UDP_IPv6隧道报文，如果接收到的报文已被隧道传送到IPv4报头，则服务器删除IPv4报头，如果接收到的报文已被隧道传输到IPv4_UDP，则删除UD P报头 从UDP栈（212）。 服务器将分组接收接口设置为隧道网络接口（213），并将IPv4报头或IPv4_UDP报头删除的IPv6分组传送到隧道网络接口（214）的接收处理例程。
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公开(公告)号：KR1020080042497A
公开(公告)日：2008-05-15
申请号：KR1020060111028
申请日：2006-11-10
Applicant: 한국전자통신연구원
CPC classification number: H04W40/02 , H04W8/02 , H04W12/04 , H04W80/045
Abstract: A route optimization method in an internet service system is provided to overcome various attacks while reducing the number of times of message exchanges without a security infra and improve stability while reducing computational quantity. A route optimization method in an internet service system includes the steps of: transmitting a control message for registering information relative to locations of a home agent(120) and a node itself in a mobile node(110) belonging to the internet service system supporting network mobility; exchanging authentication information with a correspondent node(130) by using a password authenticated key at the time of receiving a response message according to location registration from a home agent; creating an authentication key by using the exchanged authentication information; performing mutual authentication by transmitting and receiving a message for direct routing to the correspondent node by using the created authentication key.
Abstract translation: 提供了一种互联网服务系统中的路由优化方法，以克服各种攻击，同时减少消息交换次数，无需安全基础设施，提高稳定性，同时减少计算量。 互联网服务系统中的路由优化方法包括以下步骤：在属于互联网服务系统支持网络的移动节点（110）中发送用于登记相对于归属代理（120）和节点本身的位置的信息的控制消息 流动性; 根据来自本地代理的位置登记，在接收到响应消息时使用密码认证密钥与对端节点（130）交换认证信息; 通过使用交换的认证信息来创建认证密钥; 通过使用所创建的认证密钥发送和接收用于直接路由到对端节点的消息来执行相互认证。
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公开(公告)号：KR100818294B1
公开(公告)日：2008-03-31
申请号：KR1020060021928
申请日：2006-03-08
Applicant: 한국전자통신연구원
Abstract: 본 발명은 엠피엘에스(MPLS) 네트워크 시스템에서 MPLS를 이용하여 MPLS 터널에 대한 통계 정보를 처리하는 시스템 및 방법에 관한 것이다.
본 발명에 따른 MPLS 네트워크에서의 각 노드별 MPLS 터널의 통계 정보 처리 시스템은, 상기 각 노드간 MPLS 터널에 대하여 수집된 통계 정보를 저장하는 통계 정보 데이터베이스; MPLS를 이용하여 상기 각 노드간 입출력 패킷 처리량으로부터 상기 MPLS 터널에 대한 통계 정보를 수집하고, 상기 수집되는 통계정보를 상기 통계 정보 데이터베이스에 저장하는 통계 정보 수집부; 상기 수집된 통계 정보로부터 각 노드간 입출력 패킷 처리량에 따른 상기 MPLS 터널의 통계값을 산출하는 통계 정보 처리부; 를 포함하여 구성되는 중앙 관리 서버를 포함하며, 상기 중앙 관리 서버는 상기 통계 정보 처리부에서 산출된 상기 각 노드간 MPLS 터널에서의 통계값을 가입자 또는 관리자에게 제공하는 통계 정보 전송부를 더 포함할 수 있다.
MPLS, MPLS 터널, 통계 정보, 라우터, 중앙 관리 서버-
公开(公告)号：KR100759796B1
公开(公告)日：2007-09-20
申请号：KR1020040091571
申请日：2004-11-10
Applicant: 한국전자통신연구원
CPC classification number: H04L41/0677 , H04L43/16
Abstract: 데이터 통신망에서 루핑 상태를 검출하고 제거하기 위한 스위칭 장치 및 그 방법이 개시된다. 프레임의 체크썸 값을 추출하고, 동일한 체크썸 값의 수신 횟수를 계수한 후, 체크썸 값의 수신 횟수가 소정 임계치 이상이면 프레임의 루핑 현상을 선언한다. 이로써, 체크썸 값을 이용하여 루핑 현상을 용이하게 검출 가능하다.
체크썸, 루핑 현상
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