Standard thinking has been that NAC helps small and midsize business control networks and control costs.
All I know is that NAC is still the right answer some of the time. At least one user recently featured on bMighty is pleased with NAC. Jeremy Hobbs is a school CIO in Canada, who is successfully deploying a NAC solution from Nevis Networks.
Without it "the manageability gap was huge," he said. Nevis delivered the adaptability that Hobbs was looking for. It gave him the nuts and bolts technology," he said, that enabled his tech team to build applications "around the capabilities of the Nevis box."
What's your NAC story?