SELECT * FROM table where (INET_ATON("127.0.1.2") BETWEEN INET_ATON(ipstart) AND INET_ATON(ipend));
MySQL查询IP地址是否在某个区间
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SELECT * FROM table where (INET_ATON("127.0.1.2") BETWEEN INET_ATON(ipstart) AND INET_ATON(ipend));