4. Conclusion

The various NAC solution vendors have come up with a wide variety of technical responses to the risks associated with opening up internal networks. Nevertheless, it should be noted that, in order to implement a high-performance architecture, standards need to be supplemented by complementary approaches, in particular to map the network, its flows and vulnerabilities, and that the hybridization of architectures (several types of control points) is becoming the rule in order to have the widest possible scope of action.