背景：有一套oracle19c  RAC ，主机rac1及rac2,IP地址分别为192.168.56.101、192.168.56.102,通过vyos软路由的nat，已经实现192.168.56.0可以与IP:192.168.128.179通讯。现在需要实现与192.168.128.0网段通讯。

[root@emcc ~]# route add -net 192.168.56.0 netmask 255.255.255.0 gw 192.168.128.179
[root@emcc ~]# ip route
default via 192.168.128.1 dev ens192 proto dhcp metric 100 
192.168.56.0/24 via 192.168.128.179 dev ens192 
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown 
192.168.128.0/24 dev ens192 proto kernel scope link src 192.168.128.181 metric 100 
[root@emcc ~]# ping 192.168.56.101
PING 192.168.56.101 (192.168.56.101) 56(84) bytes of data.
64 bytes from 192.168.56.101: icmp_seq=1 ttl=63 time=0.457 ms
64 bytes from 192.168.56.101: icmp_seq=2 ttl=63 time=0.512 ms
64 bytes from 192.168.56.101: icmp_seq=3 ttl=63 time=0.483 ms