TTL不同系统下的默认值
+caption: TTL(Time To Live) 生存时间
系统
TTL值
Linux
64
Linux
128
UNIX
255
Windows NT
128
Windows 2000
128
Windows XP
128
Windows 98
32
TTL含义
每经过一个路由器，TTL值减一，ttl - 1 = 路由器个数
测试样例 ➜ ~ ping cnblogs.com -c 3 PING cnblogs.com (101.37.97.51) 56(84) bytes of data. 64 bytes from 101.37.97.51 (101.37.97.51): icmp_seq=1 ttl=86 time=29.9 ms 64 bytes from 101.37.97.51 (101.37.97.51): icmp_seq=2 ttl=86 time=30.5 ms 64 bytes from 101.37.97.51 (101.37.97.51): icmp_seq=3 ttl=86 time=30.1 ms --- cnblogs.com ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2003ms rtt min/avg/max/mdev = 29.909/30.197/30.548/0.300 ms 原文