An administrator needs to upgrade a Palo Alto Networks NGFW to the most current version of PAN-OS® software. The firewall has internet connectivity through an Ethernet interface, but no internet connectivity from the management interface. The Security policy has the default security rules and a rule that allows all web-browsing traffic from any to any zone.
What must the administrator configure so that the PAN-OS® software can be upgraded?
A . Security policy rule
B . CRL
C . Service route
D . Scheduler