04-21-2021 05:47 AM
Hi,
1) You can match OS on PA-220 with the OS on PA-500. So install version 8.1.6 on PA-220 and latest content releases on both firewalls. You can also upgrade PA-500 to latest OS and match it on PA-220.
2) You can export running config from PA-500 and import it into PA-220. Just be sure it is on same PAN OS so there wont be any problems.