: Change the RAM allocation (1-2 GB recommended) and ensure the "MAC Address Policy" is set to "Include all network adapter MAC addresses".
You typically use them together.
If you download metasploitable3.ova from a third party: metasploitable 3 ova download
Now you have successfully created your own Metasploitable 3 OVA. You can import this file into any compatible hypervisor without repeating the long build process. : Change the RAM allocation (1-2 GB recommended)