尽管Web浏览器可在同一台计算机上运行，​​但Ping请求超时 [英] Ping request time out although web browser works on same computer

问题描述

我现在正在使用Internet，这可以通过在StackOverflow上发布来证明.但是，如果我尝试从命令行ping stackoverflow.com，则ping超时.我需要做什么才能ping通?

I'm on the World Wide Web right now, as evidenced by posting on StackOverflow. However, if I try to ping stackoverflow.com from the command line, the ping times out. What do I need to do for ping to work?

> ping stackoverflow.com

Pinging stackoverflow.com [198.252.206.140] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 198.252.206.140:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

编辑，尝试tracert

> tracert stackoverflow.com

Tracing route to stackoverflow.com [198.252.206.140] over a maximum of 30 hops:

  1     *        *        *     Request timed out.
  2     *        *        *     Request timed out.
  3     *        *        *     Request timed out.
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10     *        *        *     Request timed out.
 11     *        *        *     Request timed out.
 12     *        *        *     Request timed out.
 13     *        *        *     Request timed out.
 14     *        *        *     Request timed out.
 15     *        *        *     Request timed out.
 ...
 Trace complete.

从Request timed out.一直到30跳.

相同的结果. :-)

推荐答案

某些主机具有阻止ICMP的防火墙( http://ping.eu/traceroute/之类的在线网络)或tcptraceroute( http://linux.die.net/man/1/tcptraceroute ).

Some hosts have a firewall that block the ICMP (http://ca.wikipedia.org/wiki/Internet_Control_Message_Protocol) packets like ping. You can use traceroute (cmd line tool or online webs like http://ping.eu/traceroute/) or tcptraceroute (http://linux.die.net/man/1/tcptraceroute).

某些路由器还具有阻止ICMP的防火墙.您可以通过执行ping google.com来检测到它.它失败了，那么问题出在您的本地路由器而不是远程主机.

Some routers also have a firewall that block ICMP. You can detect this by doing ping google.com. It that fails, then it's your local router that's problematic not the remote host.

希望它可以为您提供帮助

hope it can help you

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