Using TCP Load Distribution

Using TCP Load Distribution
TCP load distribution is a dynamic form of inside global destination IP address translation that
can be configured to distribute the load of incoming connections among a pool of inside local
IP addresses. Once the mapping scheme is created, an inside global destination IP address
matching an access list is replaced with an IP address from a rotary pool of IP addresses in a
round-robin fashion.
When new connections are established from the outside network to the inside network, all
non-TCP traffic is passed without being translated, unless another translation type is applied to
the interface. Figure 3.4 illustrates the TCP load distribution feature, so let’s look at the process
NAT uses to map one virtual IP address to several real IP addresses.