LTM migration for Proxy, Anti-Spam and web servers

And all inbound connection or client connection source IP (example 10.10.10.10) address must not change. Otherwise proxy server cannot sees the client IP. Same goes with Anti-Spam server.

 

Since the Anti-Spam and Proxy server hides behind the LTM, all outbound connection must use change to use the LTM virtual server IP address which is 192.168.1.4 for anti-spam and 10.7.2.2 for Proxy server.

 

Is there anything wrong with this implementation?

 

 

Can I implement only SNAT for outbound connection(return-traffic) from proxy/Anti-spam to LTM only? Original traffic from LTM(which originates from user) to proxy/Anti-spam only need to be load balance. No translation of Source IP needed. Only DestNat since LTM needs to LB to server.

 

 

Is this possible?