tcpdump -enX -i any host 114.242.248.34 and icmp
- iOS系统网络抓包方法 http://www.cnblogs.com/ydhliphonedev/archive/2011/10/27/2226935.html
- Mac OS X 下抓包工具 Charles 使用 http://beginios.com/blog/2014/01/14/charles-proxy-for-mac/
tcpdump -enX -i any host 114.242.248.34 and icmp