IETF에서는 이동노드와 다른 엔티티들 사이에서 발생하는 시그날링을 줄이기 위하여 계층적 이동성 관리 프로토콜(HMIPv6)을 제시하고 있다. HMIPv6는 MAP(Mobility Anchor Point)라는 새로운 엔티티를 도입하여 특정 지역 내에서 지역 홈 에이전트의 역할을 수행하도록 한다. HMIPv6를 이용함으로써 이동노드와 다른 엔티티 간에 발생하는 시그날링을 줄이고, Mobile IPv6의 핸드오프 성능을 개선할 수 있다. HMIPv6에서는 MAP과 이동노드 사이의 보안을 위해 IKE(The Internet Key Exchange)와 같은 보안 프로토콜을 사용하도록 정의하고 있다. 본 논문에서는 많은 부하가 걸리는 IKE 대신에 RR(Return Routability) 절차를 이용하여 이동노드와 MAP 사이의 보안을 제공하는 방법을 제안한다.
KSP Keywords
Internet Key Exchange(IKE), Mobility anchor point(MAP), Return Routability Procedure(RRP)
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