mysql> CREATE TABLE access (  t bigint(20) NOT NULL DEFAULT 0,  ip varbinary(16) DEFAULT NULL,  n int(11) DEFAULT NULL)ENGINE = INNODB,AVG_ROW_LENGTH = 16384,CHARACTER SET utf8,COLLATE utf8_general_ci,MAX_ROWS = 5;
Query OK, 0 rows affected, 1 warning (0.38 sec)

mysql> ALTER TABLE access ADD UNIQUE INDEX ip (ip);
Query OK, 0 rows affected (0.56 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql> CREATE PROCEDURE procedure1(IN ip varchar(32)) INSERT INTO access (ip, n, t)     VALUE (IF(IS_IPV6(ip),INET6_ATON(ip), INET_ATON(ip)), 0, 0);
Query OK, 0 rows affected (0.28 sec)

mysql> CALL procedure1('192.168.0.3');
Query OK, 1 row affected (0.29 sec)

mysql> CALL procedure1('0:0:0:0:0:0:0:1');
Query OK, 1 row affected (0.07 sec)

mysql> SELECT * FROM access;
+---+------------------+------+
| t | ip               | n    |
+---+------------------+------+
| 0 | 3232235523       |    0 |
| 0 |                 |    0 |
+---+------------------+------+
2 rows in set (0.00 sec)

mysql>