PHP 子网计算器
http://host.howpick.com/tools/SubnetCalc.php
http://www.tcpipguide.com/free/t_IPClasslessAddressingBlockSizesandClassfulNetworkE.htm
本文出自 蓝鹰博客，转载时请注明出处及相应链接。
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http://host.howpick.com/tools/SubnetCalc.php
http://www.tcpipguide.com/free/t_IPClasslessAddressingBlockSizesandClassfulNetworkE.htm
本文出自 蓝鹰博客，转载时请注明出处及相应链接。
本文永久链接: http://www.lanyingblog.com/blog/643.html