query on static NAT

Hi, we have design like the traffic from the client to LB is not getting SNAT so the source IP will be preserverd all the way to the application servers.

 

As far as the reverse traffic is concerned, we have a static NAT is configured on LB to change the source IP of the traffic flow to the VIP IP of LB.

 

we have alos VIP of type "forwarding IP" for routing based on host IP for the traffic from the server to LB.

 

for some reasons I was told the traffic from the server is not getting NATed to the IP of VIP.

 

Please let me know do I need to associate the NAT to the VIP to take effect of it?

 

Or does NAT object match for the specfic traffic flow and does the translation?