You can log into cPanel a number of different ways:
Encrypted
If you wish to access cPanel over an encrypted SSL connection, cPanel uses port 2083 to respond to encrypted connection attempts.
https://192.168.0.1:2083
https://example.com:2083
Unencrypted
If you wish to access to cPanel over an unencrypted connection, cPanel uses port 2082 to respond to unencrypted connection attempts.
http://192.168.0.1:2082
http://example.com:2082