lvs_dr and mysql

[charles huang <charles-huang@xxxxxxxx>]

Hi! lvs system :
                        ________
                       |        |
                       | client |
                       |________|
                           |
                        (router)(62.132.4.129)                              
__________
                           |                                               |  
MySQL   |
             __________    |---------------------------------------------- | 
Server   |
            |          |   |    VIP=62.132.4.187 (eth0:0, arps)            |  
3.23.41 |
            | director |---     DIP=62.132.4.170 (eth0)                     
----------
            |__________|   |                                               
61.131.4.168
                           |
                           |
          -------------------------------------
          |                |                  |
          |                |                  |
   RIP1=62.132.4.171 RIP2=62.132.4.172 RIP3=62.132.4.173 (eth0)
   VIP=62.132.4.187  VIP=62.132.4.187  VIP=62.132.4.187  (all dummy0:0, 
non-arping)
   _____________     _____________      _____________
  |             |   |             |    |             |
  | realserver  |   | realserver  |    | realserver  |
  |_____________|   |_____________|    |_____________|
          |                |                  |
      (router)          (router)           (router)
          |                |                  |
          ---------------------------------------------->  to router
                                                           in front of
                                                           director

I find that php on realserver do not connect to the mysql server. But other 
machine can connect to mysql server(mysql server no connect limited)
what's error ?
?!!!
                    致
礼！

            charles huang
            charles-huang@xxxxxxxx