The Usage of Firewalld

firewalld forward

Within host and between host:

within host

Forward package from 5423 to 80

firewall-cmd --permanent --add-forward-port=port=5423:proto=tcp:toport=80

between host

Need add masquerade firstly. Forward data from 8080 to 8080 of host 192.168.37.2

firewall-cmd --zone=trusted --add-masquerade --permanent
firewall-cmd --permanent --add-forward-port=port=8080:proto=tcp:toport=8080:toaddr=192.168.37.2