It looks like you have a wildcard VIP defined where you don't know what the destination IP will be and only want to perform destination address translation for some of the addresses. If that's the case, I'd suggest configuring additional IP Forwarding VIPs for the addresses you do you want to perform address translation for. Set the pool to be the translated address. if you want the translation done for any destination port, set the VIP and pool member port to 0.
If you have a lot of addresses you want to translate, you could use the node command (Click here
) to do it. Make sure to use IP::addr (Click here
) to evaluate the IP address. This is more efficient than a string comparison.