A.config system ip 10.69.18.5/24 B.config system ip 10.69.18.5 netmask 255.255.255.0 C.config modify system ip 10.69.18.5/24 D.config modify system ip 10.69.18.5 netmask 255.255.255.0
A.config B.conf C.en D.enable
A.192.168.1.85 B.192.168.2.85 C.172.16.1.85 D.172.16.2.85