較新的Windows為了安全性考量，預設常會關閉被ping (ICMP)的設定，但在內部測試時，有時反而會造成不便，如需開啟被ping功能，只須到防火牆設置即可。
- Open the advanced firewall settings screen。
- Set [File and Printer Sharing (Response Requests – ICMPv4-In)] to Allow。
[Related Links]
- Windows 2008 R2 Firewall(Allow Ping) – The blog that is hard to understand–Only realize the lack of time for technology use – 51CTO技术博客
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