results = ip1_set - ip2_setOnly a small change.
results = ip2_set - ip1_setLook here what sets do: https://realpython.com/python-sets/
After the change, I get only 4 IP-Addresses as result with your data.
Almost dead, but too lazy to die: https://sourceserver.info
All humans together. We don't need politicians!
All humans together. We don't need politicians!