- A. Use the no switchport port-security command to allow MAC addresses to be added to the configuration.
- B. Enable port security and use the keyword sticky.
- C. Set the switchport mode to trunk and save the running configuration.
- D. Use the switchport protected command to have the MAC addresses added to the configuration.
One can configure MAC addresses to be sticky. These can be dynamically learned or manually configured, stored in the address table, and added to the running configuration. If these addresses are saved in the configuration file, the interface does not need to dynamically relearn them when the switch restarts.