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没有到主机的路由

tag-icon • tag-icon networking routing
没有到主机的路由

主机可访问：

$ tracepath -n 172.20.192.12
 1?: [LOCALHOST]                      pmtu 1500
 1:  172.16.91.1                                          21.104ms 
 1:  172.16.91.1                                          14.052ms 
 2:  172.16.1.6                                           14.974ms 
 3:  172.20.0.6                                           15.951ms 
 4:  172.20.192.12                                        23.078ms !H
     Resume: pmtu 1500

但请检查一下：

$ wget https://jenkins.mycompany.intranet/
--2020-03-26 15:19:14--  https://jenkins.mycompany.intranet/
Resolving jenkins.mycompany.intranet (jenkins.mycompany.intranet)... 172.20.192.12
Connecting to jenkins.mycompany.intranet (jenkins.mycompany.intranet)|172.20.192.12|:443... failed: No route to host.

浏览器也无法访问主机。它回复：

This site can’t be reached 
(ERR_ADDRESS_UNREACHABLE)

还：

$ telnet 172.20.192.12
Trying 172.20.192.12...
telnet: Unable to connect to remote host: No route to host

这是关于什么的？

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