请问这个Ping的命令怎么写？

[littleyy]

我想ping一个机器名是221的机器

ping 221

此时显示
Pinging 0.0.0.221 with 32 bytes of data:

Bad option specified.
Bad option specified.
Bad option specified.
Bad option specified.

Ping statistics for 0.0.0.221:
Packets: Sent = 4, Received = 0, Lost = 4 (100%
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

ping命令把221当作了一个ip而不是机器名

请问如何解决？

[zgg_xp]

没有别的办法，只有把数字名称加长（比3位长就可以）。或是改名称为字母。