小工具

获取当前网络的公网IP

[本站]http://www.openwrtdl.com/wordpress/getip.php

http://city.ip138.com/ip2city.asp

http://www.ip138.com/

http://www.ip.cn/

IP地址计算

http://www.123cha.com/cidr/

端口扫描

http://www.atool.org/port_scanner.php