How do I block all IP addresses using Limit Login Attempts

Hi. I am using Limit Logon Attempts and it is blocking attempts but I want to make the site as secure as possible. I have a static IP address at home and work so I want to block all IP addresses and white list mine and my service provider. I have tried the following:

0.0.0.0-255.255.255.255
0000:0000:0000:0000:0000:0000:0000:0000 – ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
::::::: – ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff

The above stopped most attempts but I am still getting some so I tried adding:
0:::::::0 – ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
0:::::0 – ffff:ffff:ffff:ffff:ffff:ffff
::::: – ffff:ffff:ffff:ffff:ffff:ffff
0:0:0:0:0:0 – ffff:ffff:ffff:ffff:ffff:ffff
0::::::0 – ffff:ffff:ffff:ffff:ffff:ffff:ffff
:::::: – ffff:ffff:ffff:ffff:ffff:ffff:ffff
0:0:0:0:0:0:0 – ffff:ffff:ffff:ffff:ffff:ffff:ffff

But I am still getting attempts from addresses such as:

2a01:4f8:211:1d4f::2

2604:a880:400:d0::1426:6001

2800:485:0:5c:2d4f:a277:41f2:a55b

2a01:4f8:c0c:8b69::1

To name a few. How do I block all IP addresses therefore only allowing the ones I have white listed please.