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没有到主机的路由：ssh 错误

tag-icon • tag-icon networking ssh linux-networking ubuntu-12.04
没有到主机的路由：ssh 错误

我有一台笔记本电脑和一台台式电脑（[电子邮件保护]), 我通常通过 ssh 将笔记本电脑连接到 PC。但现在当我尝试时，它显示以下错误。可能是什么问题？ssh -X [email protected]ssh: connect to host 172.16.13.151 port 22: No route to host

输出ifconfig如下：

eth0
Link encap:Ethernet  HWaddr 2c:41:38:0d:bb:a2
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo
Link encap:Local Loopback
inet addr:127.0.0.1  Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING  MTU:65536  Metric:1
RX packets:1750 errors:0 dropped:0 overruns:0 frame:0
TX packets:1750 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0 
RX bytes:134949 (134.9 KB)  TX bytes:134949 (134.9 KB)

wlan0
Link encap:Ethernet  HWaddr d0:df:9a:76:18:1e
inet addr:172.16.101.213  Bcast:172.16.111.255  Mask:255.255.240.0
inet6 addr: fe80::d2df:9aff:fe76:181e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:595855 errors:0 dropped:0 overruns:0 frame:0
TX packets:37917 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:138691381 (138.6 MB)  TX bytes:4733835 (4.7 MB)

的输出route如下：

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         172.16.96.1     0.0.0.0         UG    0      0        0 wlan0
link-local      *               255.255.0.0     U     1000   0        0 wlan0
172.16.96.0     *               255.255.240.0   U     2      0        0 wlan0

输出traceroute 172.16.13.151给出

traceroute to 172.16.13.151 (172.16.13.151), 30 hops max, 60 byte packets  
1  172.16.96.5 (172.16.96.5)  456.381 ms  457.461 ms  457.448 ms       
2  172.16.96.5 (172.16.96.5)  5007.656 ms !H  5007.665 ms !H  5015.906 ms !H

答案1

源172.16.101.213和目标172.16.13.151不在同一网络上（基于网络掩码255.255.240.0）。因此，您的笔记本电脑将数据包发送到默认网关172.16.96.1，而默认网关显然不知道通往您 PC 的路由。

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