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28 Reply from : bytes=32 time1ms TTL=128 Reply from : bytes=32 time1ms TTL=128 Ping statistics for : ? ??Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milliseconds: ??? Minimum = 0ms, Maximum = 0ms, Average = 0ms 如果在 MSDOS方式下執(zhí)行此命令顯示內(nèi)容為: Request timed out,則表明網(wǎng)卡安裝或配置有問題。將網(wǎng)線斷開再次執(zhí)行此命令,如果顯示正常,則說明本機使用的 IP地址可能與另一臺正在使用的機器 IP地址重復了。如果仍然不正常,則表明本機網(wǎng)卡安裝或配置有問題,需繼續(xù)檢查相關(guān)網(wǎng)絡(luò)配置。 ②、 Ping網(wǎng)關(guān) IP 假定網(wǎng)關(guān) IP為: ,則執(zhí)行命令“ Ping ”。 在MSDOS方式下執(zhí)行此命令,如果顯示類似以下信息: Pinging with 32 bytes of data: Reply from : bytes=32 time1ms TTL=255 Reply from : bytes=32 time1ms TTL=255 Reply from : bytes=32 time1ms TTL=255 Reply from : bytes=32 time1ms TTL=255 Ping statistics for : ??? Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milliseconds: ??? Minimum = 0ms, Maximum = 0ms, Average = 0ms 則表明局域網(wǎng)中的網(wǎng)關(guān)路由器或路由交換機正在正常運行。反之,則說明網(wǎng)關(guān)設(shè)置有問題,請檢查 IP, 網(wǎng)關(guān)等信息是否設(shè)置正確。 ③ 、 Ping遠程 IP 這一命令可以檢測本機能否正常訪問 Inter。 比如中國教育科研網(wǎng)的 IP地址為: 。在 MSDOS方式下執(zhí)行命令:“ Ping ”, 如果屏幕顯示: Pinging with 32 bytes of data: Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 Ping statistics for : ??? Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milliseconds: ??? Minimum = 0ms, Maximum = 0ms, Average = 0ms 則表明運行正常,能夠正常接入校園網(wǎng)。反之,則表明網(wǎng)絡(luò)設(shè)置存在問題或 IP綁定不正確。 ④ 、 Ping DNS IP 這一命令用于檢查校園網(wǎng)的 DNS是否工作正常,如果您可以正常聯(lián)網(wǎng),但是輸入域名卻無法解析時請嘗試該命令“ ping ”,如果顯示 Pinging with 32 bytes of data: Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 Reply from : bytes=32 time1ms TTL=63 ? Ping statistics for : ??? Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milliseconds: ??? Minimum = 0ms, Maximum = 0ms, Average = 0ms