添加路由route以连通机器

[root@localhost ]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.100.11.254   0.0.0.0         UG    100    0        0 enP1p22s0
0.0.0.0         10.100.11.254   0.0.0.0         UG    425    0        0 br0
10.100.8.0      0.0.0.0         255.255.252.0   U     100    0        0 enP1p22s0
10.100.8.0      0.0.0.0         255.255.252.0   U     425    0        0 br0
10.130.8.15     10.100.11.254   255.255.255.255 UGH   0      0        0 enP1p22s0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
[root@localhost ]# ping 10.100.8.177
PING 10.100.8.177 (10.100.8.177) 56(84) bytes of data.
^C
--- 10.100.8.177 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

[root@localhost ]# route add -host 10.100.8.177 gateway 10.100.11.254  enP1p22s0

[root@localhost ]# ping 10.100.8.177
PING 10.100.8.177 (10.100.8.177) 56(84) bytes of data.
64 bytes from 10.100.8.177: icmp_seq=1 ttl=63 time=0.209 ms
64 bytes from 10.100.8.177: icmp_seq=2 ttl=63 time=0.162 ms
^C
--- 10.100.8.177 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1082ms
rtt min/avg/max/mdev = 0.162/0.185/0.209/0.027 ms
[root@localhost ]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.100.11.254   0.0.0.0         UG    100    0        0 enP1p22s0
0.0.0.0         10.100.11.254   0.0.0.0         UG    425    0        0 br0
10.100.8.0      0.0.0.0         255.255.252.0   U     100    0        0 enP1p22s0
10.100.8.0      0.0.0.0         255.255.252.0   U     425    0        0 br0
10.100.8.177    10.100.11.254   255.255.255.255 UGH   0      0        0 enP1p22s0
10.130.8.15     10.100.11.254   255.255.255.255 UGH   0      0        0 enP1p22s0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0