为什么我家电脑上的ping总是显示连接超时 ping命令中请求超时是什么意思?
ping\u5bf9\u65b9\u7684IP\uff0c\u4e3a\u4ec0\u4e48\u603b\u662f\u663e\u793a\u201c\u8bf7\u6c42\u8d85\u65f6\u201d\uff1f\u3000\u3000\u901a\u4fd7\u6765\u8bb2\u5c31\u662f\u8bf4\u660e\u81ea\u5df1\u7684\u7f51\u7edc\u8fde\u901a\u4e0d\u597d,ping\u662f\u5bf9\u4e00\u4e2a\u76ee\u6807\u670d\u52a1\u5668\u53d1\u51fa\u6570\u636e\u5305\uff0c\u5e76\u4e14\u8bf7\u6c42\u83b7\u53d6\u53cd\u9988\u5305\u7684\u8fc7\u7a0b\uff0c\u5982\u679c\u53d1\u51fa\u4e86\u6570\u636e\u5305\uff0c\u5728\u6307\u5b9a\u65f6\u95f4\u5185\uff0c\u65e0\u6cd5\u5f97\u5230\u83b7\u53d6\u53cd\u9988\u5305\uff0c\u8fd9\u8bc1\u660e\u81ea\u5df1\u4e0e\u8be5\u670d\u52a1\u5668\u7684\u7f51\u7edc\u6ca1\u6709\u8fde\u901a\u3002
\u3000\u3000ping\u547d\u4ee4\u4e2d\u8bf7\u6c42\u8d85\u65f6\u539f\u56e0\u5206\u6790\uff1a\u672a\u8fde\u63a5\u4e0a\u670d\u52a1\u5668\uff0c\u8fd9\u662f\u56e0\u4e3a\u7cfb\u7edf\u5fd9\u3001\u7f51\u901f\u6162\u3001\u8ba1\u7b97\u673a\u7cfb\u7edf\u8d44\u6e90\u4e0d\u8db3\u7b49\u5bfc\u81f4\u767b\u9646\u8d85\u65f6\u5747\u53ef\u51fa\u73b0\u6240\u8ff0\u60c5\u51b5\uff01
\u3000\u3000\uff081\uff09 \u5bf9\u65b9\u5df2\u5173\u673a\uff0c\u6216\u8005\u7f51\u7edc\u4e0a\u6839\u672c\u6ca1\u6709\u8fd9\u4e2a\u5730\u5740
\u3000\u3000\uff082\uff09\u5bf9\u65b9\u4e0e\u81ea\u5df1\u4e0d\u5728\u540c\u4e00\u7f51\u6bb5\u5185\uff0c\u901a\u8fc7\u8def\u7531\u4e5f\u65e0\u6cd5\u627e\u5230\u5bf9\u65b9\uff0c\u4f46\u6709\u65f6\u5bf9\u65b9\u786e\u5b9e\u662f\u5b58\u5728\u7684\uff0c\u5f53\u7136\u4e0d\u5b58\u5728\u4e5f\u662f\u8fd4\u56de\u8d85\u65f6\u7684\u4fe1\u606f\u3002
\u3000\u3000\uff083\uff09\u5bf9\u65b9\u786e\u5b9e\u5b58\u5728\uff0c\u4f46\u8bbe\u7f6e\u4e86ICMP\u6570\u636e\u5305\u8fc7\u6ee4\uff08\u6bd4\u5982\u9632\u706b\u5899\u8bbe\u7f6e\uff09\u3002
\u3000\u3000\u95ee\u600e\u6837\u77e5\u9053\u5bf9\u65b9\u662f\u5b58\u5728\uff0c\u8fd8\u662f\u4e0d\u5b58\u5728\u5462\uff0c\u53ef\u4ee5\u7528\u5e26\u53c2\u6570 -a \u7684Ping\u547d\u4ee4\u63a2\u6d4b\u5bf9\u65b9\uff0c\u5982\u679c\u80fd\u5f97\u5230\u5bf9\u65b9\u7684NETBIOS\u540d\u79f0\uff0c\u5219\u8bf4\u660e\u5bf9\u65b9\u662f\u5b58\u5728\u7684\uff0c\u662f\u6709\u9632\u706b\u5899\u8bbe\u7f6e\uff0c\u5982\u679c\u5f97\u4e0d\u5230\uff0c\u591a\u534a\u662f\u5bf9\u65b9\u4e0d\u5b58\u5728\u6216\u5173\u673a\uff0c\u6216\u4e0d\u5728\u540c\u4e00\u7f51\u6bb5\u5185\u3002
\u3000\u3000\uff084\uff09\u9519\u8bef\u8bbe\u7f6eIP\u5730\u5740
\u3000\u3000\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e00\u53f0\u4e3b\u673a\u5e94\u8be5\u6709\u4e00\u4e2a\u7f51\u5361\uff0c\u4e00\u4e2aIP\u5730\u5740\uff0c\u6216\u591a\u4e2a\u7f51\u5361\uff0c\u591a\u4e2aIP\u5730\u5740\uff08\u8fd9\u4e9b\u5730\u5740\u4e00\u5b9a\u8981\u5904\u4e8e\u4e0d\u540c\u7684IP\u5b50\u7f51\uff09\u3002\u4f46\u5982\u679c\u4e00\u53f0\u7535\u8111\u7684\u201c\u62e8\u53f7\u7f51\u7edc\u9002\u914d\u5668\u201d\uff08\u76f8\u5f53\u4e8e\u4e00\u5757\u8f6f\u7f51\u5361\uff09\u7684TCP/IP\u8bbe\u7f6e\u4e2d\uff0c\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u4e0e\u7f51\u5361IP\u5730\u5740\u5904\u4e8e\u540c\u4e00\u5b50\u7f51\u7684IP\u5730\u5740\uff0c\u8fd9\u6837\uff0c\u5728IP\u5c42\u534f\u8bae\u770b\u6765\uff0c\u8fd9\u53f0\u4e3b\u673a\u5c31\u6709\u4e24\u4e2a\u4e0d\u540c\u7684\u63a5\u53e3\u5904\u4e8e\u540c\u4e00\u7f51\u6bb5\u5185\u3002
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