ANALYSIS OF IPSEC SERVICES AND THEIR INTEGRATION IN AN IP VIRTUAL PRIVATE NETWORK

摘要

Many approaches may lead to integrate security functions in the intranet/internet services. These functions may be placed at the application layer or at lower OSI layers. Ipsec suite protocols were speci- fied by IETE in order to integrate security functiona- lity at network layer. This paper describes the features of IPSEC protocols and identifies the aspects which are not standardized. The network translation address(NAT)functionality used by routers and fire- walls is not always compatible with IPSec.