DSTM(Dual IP Layer Stack Transition Mechanism)은 IPv6 망과 IPv4 망 사이의 투명한 연동을 제공하는 메 커니즘으로 IPv6 기반 망에서 DSTM 단말의 IPv4에 대한 통신 요구가 발생할 시에 동적으로 DSTM 서버로부터 IPv4 주소를 할당 받아 IPv4 in IPv6 터널링을 사용하여 DSTM TEP(Tunnel End Point)로 패킷을 전달하고, DSTM TEP에서 IPv4 패킷을 복원하여 IPv4 망으로 전달하여 IPv4 단말과 통신한다. DSTM Port 옵션은 DSTM 서버에 의한 IPv4 주소 할당 시에 사용 가능한 포트범위를 달리하는 동일한 IPv4 주소를 복수의 단말에 할당할 수 있 게 제안되었다. 본 논문에서는 DSTM 클라이언트와 DSTM Port 옵션을 지원하는 DSTM TEP를 리눅스 기반 환경 에서 구현하고 테스트베드 상에서의 다양한 테스트를 통하여 그 동작성에 대한 검증 및 성능평가를 수행하였다.
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