怎样看Ping？通与不通？ 怎么用PING看网络通不通？
\u600e\u4e48\u770b\u51fa\u6765\u662fping\u901a\u8fd8\u662fping\u4e0d\u901aC:\>ping www.163.com
Pinging www.cache.split.netease.com [220.181.28.54] with 32 bytes of data:
Reply from 220.181.28.54: bytes=32 time=21ms TTL=53
Reply from 220.181.28.54: bytes=32 time=20ms TTL=53
Reply from 220.181.28.54: bytes=32 time=20ms TTL=53
Reply from 220.181.28.54: bytes=32 time=19ms TTL=53
Ping statistics for 220.181.28.54:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 19ms, Maximum = 21ms, Average = 20ms
C:\>
\u8fd9\u6837\u5c31\u662fping \u901a\u4e86\uff0c
C:\>ping 255.63.1.23
Pinging 255.63.1.23 with 32 bytes of data:
Destination specified is invalid.
Destination specified is invalid.
Destination specified is invalid.
Destination specified is invalid.
Ping statistics for 255.63.1.23:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\>
\u8fd9\u6837\u4e00\u822c\u5c31\u662f\u6ca1\u901a\u3002
C:\Documents and Settings\user.SANFOD>ping 127.
Pinging 127.0.0.1 with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Ping statistics for 127.0.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
这说明可以ping通，别的一样
看你的接收数据包的数值
如果是内网的话，正常情况下bytes=32,times<1S,TTL=64
，只要数字超过这个，就说明你的网络有问题，如果是ping外网的话，不同的服务器返回的数值不同。
Pinging 192.168.1.21 with 65500 bytes of data:
Reply from 192.168.1.21: bytes=65500 time<10ms TTL=254
Reply from 192.168.1.21: bytes=65500 time<10ms TTL=254
如果通的话，就会返回一个TTL值，如上。
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