A week after configuring an ACL, it is no longer present on the Citrix ADC. What could be the reason?

A week after configuring an ACL, it is no longer present on the Citrix ADC. What could be the reason?

• A. The administrator did NOT run the apply ACL command.
• B. The simple ACLs remain active for only 600 seconds.
• C. The simple ACLs remain active for only 60 seconds.
• D. The Citrix ADC has been restarted without saving the configurations.

Answer: (D)

The device uses two configurations: the running configuration (current active settings) and the startup configuration (saved settings loaded at boot). ACLs you create live in the running configuration, and they only persist across reboots if you save them to the startup configuration. If the Citrix ADC restarts without saving, it loads the startup configuration, which doesn’t include the ACL you added, so the ACL disappears. To keep changes like this, always save after configuring—for example, use the save command to write the running config to startup, or save via the GUI.

The device uses two configurations: the running configuration (current active settings) and the startup configuration (saved settings loaded at boot). ACLs you create live in the running configuration, and they only persist across reboots if you save them to the startup configuration. If the Citrix ADC restarts without saving, it loads the startup configuration, which doesn’t include the ACL you added, so the ACL disappears. To keep changes like this, always save after configuring—for example, use the save command to write the running config to startup, or save via the GUI.