$ ping 0 PING 0 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.075 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.065 ms
On Mac:
1 2 3 4
$ ping 0 PING 0 (0.0.0.0): 56 data bytes ping: sendto: No route to host ping: sendto: No route to host
在这里,它翻译为一个空路由0.0.0.0。
0 是可选的
1 2 3 4
$ ping 127.1 PING 127.1 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.079 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.065 ms
需要注意的是,0在中间是可选的,若在最后,不能省略。
1 2 3 4
$ ping 192.168.141 PING 192.168.141 (192.168.0.141) 56(84) bytes of data. 64 bytes from 192.168.0.141: icmp_seq=1 ttl=63 time=0.470 ms 64 bytes from 192.168.0.141: icmp_seq=2 ttl=63 time=0.431 ms
ip 地址溢出
例如:
1 2 3 4 5
# 最后一个数字可解释为2x256 + 1 $ ping 192.168.513 PING 192.168.513 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_seq=1 ttl=254 time=0.137 ms 64 bytes from 192.168.2.1: icmp_seq=2 ttl=254 time=0.113 ms
十进制 ip 表示法
例如:
1 2 3 4
$ ping 167772673 PING 167772673 (10.0.2.1): 56 data bytes 64 bytes from 10.0.2.1: icmp_seq=0 ttl=61 time=15.441 ms 64 bytes from 10.0.2.1: icmp_seq=1 ttl=61 time=4.627 ms