I installed MySql in a server with 3 IPs.

Locally, I can use any of the 3 IPs to connect to the server and it works fine.
But from another server, just one of these IPs work.
I added root@"%" permissions.

So, how do I know (or test) which IP is MySql server being bind to ?

mysql -u<user> -p<password> -h<ip which you connect>