AAA                                                                                                                                                                                                                                                                                                                     
     192.168.1.x/24                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                              192.168.1.22x                                                                                                                                                                              192.168.1.20x                                                   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                 NAT                                                                                                                                                                                  RRR
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                                      192.168.3.1x                       
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                            BBB                                                                                                                                                                                                                                                                                                          
                                                   192.168.3.x/24                                                                                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                       192.168.2.12x                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                              CCC                                                                                                                                                                                                                                                                                                        
                                  192.168.2.x/24