我有几个 Linux 客户虚拟机,它们通过桥接网络连接到我的物理适配器。出于某种原因,我无法将主机的子网用于客户虚拟机(虚拟适配器对我来说太慢了),因此我为它们创建了一个单独的子网。
在主机上我添加了来宾子网:
C:\> route add 192.168.20.0 mask 255.255.255.0 0.0.0.0 metric 1
关于客人:
# route add -host 192.168.148.87 dev eth3 # my host ip
它主要起作用:
basin@BASIN /cygdrive/c/Users/basin
$ tracert -d 192.168.20.20
Tracing route to 192.168.20.20 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 192.168.20.20
Trace complete.
basin@BASIN /cygdrive/c/Users/basin
$ tracert -d 192.168.20.21
Tracing route to 192.168.20.21 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 192.168.20.21
Trace complete.
但看起来有些数据包通过了网关:
basin@BASIN /cygdrive/c/Users/basin
$ tracert -d 192.168.20.23
Tracing route to 192.168.20.23 over a maximum of 30 hops
2 <1 ms <1 ms <1 ms 192.168.200.1 0
3 192.168.200.1 reports: Destination host unreachable.
Trace complete.
与来宾的 SSH 连接经常停滞。我做错了什么?
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.149.200 192.168.148.87 20
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.20.0 255.255.255.0 On-link 192.168.148.87 21
192.168.20.255 255.255.255.255 On-link 192.168.148.87 276
192.168.56.0 255.255.255.0 On-link 192.168.56.1 266
192.168.56.1 255.255.255.255 On-link 192.168.56.1 266
192.168.56.255 255.255.255.255 On-link 192.168.56.1 266
192.168.148.0 255.255.254.0 On-link 192.168.148.87 276
192.168.148.87 255.255.255.255 On-link 192.168.148.87 276
192.168.149.255 255.255.255.255 On-link 192.168.148.87 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.148.87 276
224.0.0.0 240.0.0.0 On-link 192.168.56.1 266
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.148.87 276
255.255.255.255 255.255.255.255 On-link 192.168.56.1 266
===========================================================================
更新:
可能是操作系统向不同的地方发送了一些 ICMP 请求,而回复覆盖了我的静态路由?如何检查?
答案1
仅当目标地址不在直接连接的网络上时才使用静态路由。在您的例子中,所有主机都在直接连接的网络上,因此静态路由将被忽略。