The key criterion to consider when it comes to device support is agent based versus agent less network access control (NAC). NAC agents supply detailed information on connected devices, allowing policies to be exacted . This can include restricting devices that do not have up to date antivirus or have prohibited applications installed.
Still, agents rely on these devices being enrolled in the NAC system. NAC agents can be further divided into persistent and dissolvable persistent agents are installed on the target device, whereas dissolvable agents provide one-time authentication of the device, and after that it should be deleted. and