For a successful SMA installation, which of the following is crucial?

In the context of a successful SonicWall Secure Mobile Access (SMA) installation, having an internal WINS server IP can be crucial for environments that rely on legacy Windows networking. A WINS server is used to resolve NetBIOS names to IP addresses, which can be important for ensuring that network resources are accessible. If the SMA connects to an internal network where services utilize NetBIOS names, the presence of a WINS server allows those services to be resolved properly, thereby facilitating seamless access for users.

Moreover, while having an external firewall configuration or static IP allocation might be important for network security and stability, respect to routing and external access, they are not always required for the deployment of SMA. Similarly, while user accounts are essential for access control and authentication processes, they are more related to user management rather than the installation logistics of the SMA itself.

Using an internal WINS server IP focuses specifically on network configuration, which is foundational to accommodating the specific networking requirements for a successful SMA installation.