A company requires a solution for user VPN access. The solution must meet these requirements: Enforce a policy to authenticate users. Users must authenticate against the internal Cisco ISE server when

Network Visibility Module (NVM) collects and exports endpoint telemetry and network flow data for security analytics and does not provide user authentication functionality.

The ISE Posture module assesses endpoint compliance against defined health policies but is not responsible for authenticating users to the network.

Network Access Manager is the AnyConnect module that handles IEEE 802.1X network access control, enabling policy enforcement and authentication against an internal Cisco ISE server when a user is connected to the corporate network. It satisfies both stated requirements - enforcing an authentication policy and using ISE as the authentication server for corporate network access.

The Core VPN Client module provides basic SSL and IPsec remote-access VPN connectivity but does not handle on-premises wired or wireless 802.1X authentication against an ISE server.