The problem of snatpool persistence

Problem, be a network usage snatpool snatpool/8 ip adderss to carry on converting the translation interview internet, interview the web is appear with the round robin.The ability perisstence source ip ??

 

 

What did I do?

 

 

Thanks in advance.

 

 

 

 

}

 

snatpool pool_internet {

 

member 202.118.33.8 202.118.33.9 202.118.33.10 202.118.33.11 202.118.33.12 202.118.33.13 202.118.33.14 202.118.33.15

 

}

 

snat automap_snat {

 

snatpool pool_internet

 

origin 0.0.0.0 mask 0.0.0.0

 

}