‘classic ASA’ refers to the ASA which doesn’t include CX or SourceFire Sensor or integrated functionality of NGFW. Also
when other modules are present with classic ASA, there are no API for those other modules.

The REST API can be used to configure ASA together with existing management interfaces (CLI, ASDM and CSM).

Following are the features in REST API 1.0.1 release.

• Support ASA features AAA, Acces Rules, Failover, Interfaces, Licensing (Permanent and Activation Key

Licenses), Shared Secret License, Logging, Management Access, Monitoring, NAT (Twice NAT and Object

NAT), Objects, Static Routing, Service Policy and Site-to-Site VPN.

• Provide Bulk API.

• Provide a Generic CLI Command Executor API using which any CLI commands can be sent using REST API.