Cisco ACE Load balancer has a farm concept( a farm is a pool of target IPs).So incoming request on a port is mapped to a farm and Natting is done under a farm to send the response back to sender.
So For e.g
If a request came from a client for x.x.x.x:8008 it will land on the 8008 farm and will be routed to the farm member which is a pool of ip. The response will follow the same path as request came but while going back it will be sent back to client by the NATTED ip address .
One of the ip under 8008 farm y.y.y.1/y.y.y.2/y.y.y.3 , will send the response back to the client.Different farms have different policies for routes.In case a farm behaves in a different way it should have a different policy.
So For e.g
If a request came from a client for x.x.x.x:8008 it will land on the 8008 farm and will be routed to the farm member which is a pool of ip. The response will follow the same path as request came but while going back it will be sent back to client by the NATTED ip address .
One of the ip under 8008 farm y.y.y.1/y.y.y.2/y.y.y.3 , will send the response back to the client.Different farms have different policies for routes.In case a farm behaves in a different way it should have a different policy.
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