적응적 PMTU 발견 메커니즘을 통한 IPSec 터널 모드에서의 통신 불능 현상 해소에 관한 시뮬레이션 연구

VPN which cuts down on expense and assures security and reliance, has increased its market shares quickly because the requirement of enterprise on security has increased. But fragmentation may raise communication failure when VPN has been implemented using IPSec. In our paper, we have given careful consideration to various reasons preventing us from communicating stably and have presented the existing solutions about them. Also we have provided adaptive PMTU discovery mechanism to improve the solutions. We have proven a prowess of this mechanism through simulation