Hi, after some testing, i figured out, that ipMatch function is not working correctly.

Example:
Network 192.168.1.0/24 (IPs: 192.168.1.0-192.168.1.255)
ipMatch(192.168.1.1, 192.168.1.0/24) -> true, great
ipMatch(192.168.2.1, 192.168.1.0/24) -> true, what isn't nice.

Even if tests are passing:

Assert::true( Helpers::ipMatch('192.168.68.233', '192.168.68.233') ); 

woks fine

Assert::false( Helpers::ipMatch('192.168.68.234', '192.168.68.233') );

works fine

Assert::true( Helpers::ipMatch('192.168.64.0', '192.168.68.233/12') );

Network 192.168.68.233/12 (IPs: 192.160.0.1-192.175.255.255)
fine, it's in subnet

Assert::false( Helpers::ipMatch('192.168.63.255', '192.168.68.233/12') );

not fine, even in subnet, but returns false

Assert::true( Helpers::ipMatch('192.168.79.254', '192.168.68.233/12') );

fine, in subnet

Assert::false( Helpers::ipMatch('192.168.80.0', '192.168.68.233/12') );

in subnet, but returns false

Assert::true( Helpers::ipMatch('127.0.0.1', '192.168.68.233/32') );

not sure, if this should return true

Maybe I missunderstood something, but this is how Mikrotik and Cisco devices are interpreting CIDR network.

Maybe, the logic of function is working backwards...

If I use 192.168.68.233/20 (192.168.64.0-192.168.79.255), it matches expected behaviour as seen in tests..