NAT / Port Forwarding 1 to Many

Question

Hi, 
 Currently, we are doing NATing with individual Firewall Rule, e.g if we need 5 internal protected devices we are creating 5 firewall rules, is there any way have 1 firewall rules for all NATings? 
 Scenario: 
 WAN Interface/IP : C: 88.88.88.88 
 Internal Device 1 : 172.16.1.10 
 Internal Device 2 : 172.16.1.20 
 Internal Device 3 : 172.16.1.30 
 Internal Device 4 : 172.16.1.40 
 
 as the number of internal devices increasing, we do need to add firewall rules. Is there any smart way to do the same??? 
 
 Thanks in advance

Aditya Patel · Answer

Hello Musarrat Hussain , 
 If you are referring to DNAT rule i.e. virtual host/port forwarding then each rule must be configured for each device. Now I am assuming that you have used different external port number and mapped them to the internal port. 
 You could create a Firewall rule group for you to manage them, so you could reduce the need to go through all the rules.

Aditya Patel · Answer

Hello Musarrat Hussain 
 Sure, this KB article will help you with your configuration.