Ad-hoc 망은 인터넷과는 다른 독립적인 망을 구성하는 경우 사용되게 된다. 이러한 Ad-hoc의 특정 호스트가 인터넷 망과의 연결을 시도하는 경우, 이 호스트로의 패킷의 라우팅을 위해서는 모든 경로상의 라우터에서 이 호스트에 대한 정보의 엔트리가 추가되어야만 한다. 이는 망 구현 과정에서 확장성 (Scalability) 문제를 야기하게 된다. 즉, 라우팅 테이블 엔트리의 증가로 차지하는 라우터의 메모리 문제나, 해당 호스트의 정보를 찾고자 할 때의 소요시간으로 적용하기 어렵다. 이러한 확장성 문제를 제거하는 방법으로 자동으로 주소를 설정 하는 방식인 DHCP(Dynamic Host Configuration Protocol)에 대해서 알아 보았다. 그리고. DHCP의 문제점인 기존의 라우팅 정보를 손실되는 문제가 있어 적용하기 어렵다. 이에 본 논문은 확장성 문제를 제거하는 동시에 엑세스 포인트(access point)에서 NAT(Network Address Translation) 기술을 적용하여 AODV(Ad-Hoc On-Demand Distance Vector) 라우팅 프로토롤과 인터넷의 연동을 위한 메커니즘을 제안한다.
KSP Keywords
Access point, Ad Hoc on demand distance vector(AODV), Dynamic host configuration protocol, Network Address Translation
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