Time to live exceeded ，什么原因？

[liulonghao]

Linux下使用ping命令ping另一solaris主机，返回 ：
From 192.168.2.1 icmp_seq=0 Time to live exceeded
From 192.168.2.1 icmp_seq=1 Time to live exceeded
From 192.168.2.1 icmp_seq=2 Time to live exceeded
From 192.168.2.1 icmp_seq=3 Time to live exceeded

另使用telnet命令，返回 ：
telnet: Unable to connect to remote host: No route to host
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上面是什么原因，还请各位大虾指点指点

[Dave888Zhou]

就是没有到那台主机的路由。网络到达不了那台主机。

[liulonghao]

是网络路由的问题？
我还以为是远程主机被停了...

[Wolf0403]

TTL 耗尽。。可能是有路由环

[cuijie_cn]

可能是ttl没了，具体什么原因不知道

[ShowMan]

网络不通

[bugs2k]

路由器或交换机环路

[mymtom]

路由出现环路了。
traceroute 检测一下。

[liulonghao]

11 59.43.18.82 (59.43.18.82) 37.435 ms 40.102 ms 38.211 ms
12 192.168.2.1 (192.168.2.1) 39.237 ms 38.147 ms 49.903 ms
13 192.168.2.2 (192.168.2.2) 39.954 ms 39.454 ms 39.851 ms
14 192.168.2.1 (192.168.2.1) 39.076 ms 38.259 ms 39.804 ms
15 192.168.2.2 (192.168.2.2) 40.269 ms 40.013 ms 37.900 ms
16 192.168.2.1 (192.168.2.1) 40.117 ms 37.994 ms 39.935 ms
17 192.168.2.2 (192.168.2.2) 38.996 ms 38.602 ms 39.177 ms
18 192.168.2.1 (192.168.2.1) 41.043 ms 38.092 ms 40.189 ms
19 192.168.2.2 (192.168.2.2) 39.822 ms 39.164 ms 38.735 ms
20 192.168.2.1 (192.168.2.1) 40.524 ms 48.664 ms 39.715 ms
21 192.168.2.2 (192.168.2.2) 38.720 ms 39.160 ms 38.990 ms
22 192.168.2.1 (192.168.2.1) 41.390 ms 37.881 ms 40.180 ms
23 192.168.2.2 (192.168.2.2) 38.598 ms 38.964 ms 39.976 ms
24 192.168.2.1 (192.168.2.1) 40.261 ms 38.219 ms 39.876 ms
25 192.168.2.2 (192.168.2.2) 37.876 ms 39.093 ms 37.910 ms
26 192.168.2.1 (192.168.2.1) 44.979 ms 36.702 ms 39.920 ms
27 192.168.2.2 (192.168.2.2) 38.808 ms 39.039 ms 37.974 ms
28 192.168.2.1 (192.168.2.1) 42.241 ms 48.291 ms 49.766 ms
29 192.168.2.2 (192.168.2.2) 37.760 ms 38.711 ms 39.200 ms
30 192.168.2.1 (192.168.2.1) 42.094 ms 38.182 ms 40.015 ms
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是成环了