The Load Balancing Research of Free BSD Based on NAT Gateway

In order to achieve the optimum load balancing effect,the load should be shared by some servers. The load control machines have to distribute the load according to the state of network outflow and the sources of the servers, so it needs to apply the optimizing load distributed strategy to achieve the goal of average distributed load.This paper has discussed the computing model on the condition of specific outflow, the method of the load distributed strategy achieved by distributed route strategy, and the method of achieving load balancing gateway, which is based on the network adress transfer in the Free BSD Unix.