Each model comes with a small number of licenses, with the option to purchase more to accommodate more concurrent users. Most models of the SonicWALL SSL VPN are hardware-based, so the user must purchase the appliance in addition to licenses. SonicWALL NSA 6600 (maximum 1,500 SSL VPN users).SonicWALL NSA 5600 (maximum 1,000 SSL VPN users).

SonicWALL NSA 4600 (maximum 500 SSL VPN users).SonicWALL NSA 3600 (maximum 350 SSL VPN users).SonicWALL NSA 2600 (maximum 250 SSL VPN users).SonicWALL NSA 250M (maximum 15 SSL VPN users).SonicWALL SRA EX9000 (maximum 20,000 users).SonicWALL SMA 7200 (maximum 10,000 users).SonicWALL SMA 8200v (virtual appliance, maximum 5,000 users).SonicWALL SMA 6200 (maximum 2,000 users).SonicWALL SMA 500v (virtual appliance, maximum 250 users).Both product series include multiple models, with both hardware and virtual appliances: The NSA series is a firewall, not an SSL VPN, but SSL VPN capabilities are available as add-on features. The SonicWALL SSL VPN includes two different product lines: the Secure Mobile Access (SMA) series and the Network Security Appliance (NSA) series. SonicWALL SSL VPN is available in two different products These networks can be vulnerable to eavesdropping and other forms of compromise, so using an SSL VPN protects against security threats. Secure remote access is important for a business because it protects private communications and information when using an unsecured, external network.

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