layer 7 load-balancing proxy mode

This mode is sometimes called reverse-proxy. The load-balancer is in the middle of all transactions between the user and the server. It maintains two separated TCP connections: One with the user: the load-balancer acts as a server. It takes requests and forward...

Layer 4 load balancing tunnel mode

The tunnel mode looks like the Direct Server Return mode, except that traffic between the load-balancer and the server can be routed. The load-balancer encapsulates the request in an IP tunnel to the server. The server recover the client request from the loadbalancer,...