Abstract:
Disclosed is a method for providing a service of a mobile virtual private network (VPN). A method of operating a group and a tunnel manager for providing the service of the mobile VPN comprises the steps of receiving a first message for registering information on a VPN group from a gateway; generating tunnel information between the group, the tunnel manager, and the gateway on the basis of the first message; and transferring a packet based on the tunnel information, thereby configuring a VPN site and a flexible VPN site even in an environment having a difficulty of using an authorized address by using a private address in the mobile VPN.
Abstract:
본 발명은 가상사설망을 구성하는 기술에 관한 것이다. 이동 중 변하지 않는 가상 홈주소(HoA)와 이동 중 계속적으로 변하는 IP주소(CoA)를 갖는 접속노드로 이동성을 지원하는 가상사설망 게이트웨이는 이동성 지원부, 데이터 보안부 및 가상주소 변환부를 포함한다. 이동성 지원부는 접속노드로부터 패킷이 전달되는 경우, 접속노드의 HoA와 변경된 CoA의 매핑관계를 유지하며 패킷에 대한 이동성 터널을 처리하여 제1 변환 패킷을 생성한다. 데이터 보안부는 이동성 지원부로부터 제1 변환 패킷을 전달받으며, 제1 변환 패킷에 대한 보안성 검사를 수행한다. 가상주소 변환부는 보안성 검사가 완료된 제1 변환 패킷을 수신하여 제1 변환 패킷의 소스 주소인 접속노드의 HoA를 가상사설망에서 사용 가능한 사설망 내부 주소로 변환하여 제2변환 패킷을 생성한다.
Abstract:
PURPOSE: A flow based QoS(Quality of Service) router and an operation method thereof are provided to reflect an QoS policy for specific traffic and monitoring for abnormal traffic by executing a real-time statistics processing function for massive data. CONSTITUTION: An SSC(System Supervisor Controller) receives flow information requesting the filtering and flow information which does not request filtering from a line card unit. The SSC stores the flow information requesting the filtering and the flow information. A manager terminal(100) monitors the flow information requesting the filtering and the flow information which does not request the filtering. The manager terminal executes the filtering and the application of QoS for the specific flow. An AP(Application Processor) directs the application of the QoS for the specific flow according to the request of the SSC. [Reference numerals] (132) Statistical report server; (134) Statistical collection table; (136) Filtering table; (140) DB interface; (150) Memory DB; (160) Web server; (170) QoS applied server
Abstract:
본 발명은 IPv6 Over IPv4 터널링 기반의 이종망간 심리스 핸드오버 제어 방법 및 장치에 관한 것으로, IPv4 기반의 네트워크 환경에서 터널링 기술을 이용한 IPv6 서비스를 제공함에 있어서, 액티브 터널(Active tunnel)과, 스탠바이 터널(Standby tunnel)의 터널 절체를 통해, 이동단말이 상이한 네트워크 간에 핸드오버 되도록 함으로써, 상이한 네트워크간의 핸드오버가 용이하고, 데이터의 손실을 방지하여 이종망으로의 핸드오버 시에도 이동단말에 제공되는 서비스의 연속성이 보장되는 효과가 있다. 터널링, IPv6, IPv4, 핸드오버, 스위치오버, 이종 인터페이스
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:
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).