Which authentication method is supported for remote access VPN by the NGFW?RSA SecurIDTACACS+local user databaseRADIUS

The authentication method supported for remote access VPN by the Next-Generation Firewall (NGFW) is: RSA SecurID.

Here's why:

1. RSA SecurID: This is a two-factor authentication method that provides an additional layer of security for remote access VPNs. It is supported by Cisco's NGFW.

2. TACACS+: While TACACS+ is a widely used authentication protocol, it is typically used for device administration (like logging into routers or switches), not for remote access VPNs on NGFW.

3. Local user database: While the local user database can be used for authentication, it's not typically used for remote access VPNs on NGFW due to scalability and management issues.

4. RADIUS: Like TACACS+, RADIUS is a widely used authentication protocol. However, it's not typically used for remote access VPNs on NGFW. It's more commonly used for network access control (like Wi-Fi authentication).