解決virtualbox 虛擬機不能ping通win7

憑經驗猜想是因爲防火牆引發的，關閉防火牆再ping，果真可行。
google說這是因爲「win7 防火牆默認的禁ping策略」引發的。
可是關閉防火牆很不安全，能夠按照如下步驟爲防火牆添加入站規則來解決問題。

原文地址：http://www.sysprobs.com/enable-ping-reply-windows-7

How to Enable Windows 7 Ping Response in Firewall

 

This post explains to enable windows 7 ping response firewall, so it can respond to all ping ICMP echo requests from other network resources.

Indication: ‘Request Time Out’ message from Windows 7 Computer and it’s not responding to ICMP echo requests from other network devices. All network sharings are working but ping reply is not working , so how to enable ping reply in Windows 7?

Reasons: By default ICMP echo requests, used for ping command is blocked in Windows 7 firewall default settings.

Solutions:

1) Disable the firewall completely in windows 7, which is not recommended.

2) Create an exceptional rule for ICMP echo request to reply ping commands in existing firewall, without disabling it completely.

ICMP Rule in Windows 7 Firewall

Follow the steps steps to create a rule. These steps are similar to enable ping in Windows Vista

Also Check how to enable ping in Windows XP

1) Go to Windows Firewall in Control panel

You can see, Windows Firewall status is On. Click on Advanced settings in left side as mentioned above.

2) Select Inbound Rule, Right clink on it and select New Rule…

3) Select Custom (Custom Rule) at last and press Next.

4) Leave All programs and go to Next.

5) Click on Protocol type and select ICMP4 as shown below. ICMP4 is the protocol used in ping command when your network is communicating with IPv4.

 

6) Since we are going to apply this rule for any IP, means responds to any IP addresses coming with echo request, select ‘Any IP addresses’ in next screen. You can add specific IP addresses also, if you want your windows 7 computer to respond to them only for ICMP echo request (ping )

 

7) Allow the connection in next screen, press Next.

8.) Keep the all three check boxes checked in the next screen, to apply this rule any type of network you connected.

9) Give a name to this rule. This name will be showing under Inbound Rules in Windows Firewall. In future you can delete the rule by this name.

Click Finish.

10) That’s it; these are easy steps to enable ping in windows 7 and the rule will be immediately applied and appeared in inbound rules. Now, Windows 7 computer will be responding to ICMP echo ping requests without disabling or stopping the windows firewall.