Irule NSlookup DNS

 

My f5 is LC and LTM , we want to config loadbanlance inbound . The F5 have terminal 3 line internet of 3 isp : FPT,VDC,VNPT.we want so if end

 

user used line internet of isp and it the same with which line isp on F5 then F5 will response ip public of line isp that for end users

 

 

for example: if client use line internet of FPT then nslookup allways get ip public of FPT . pls help me write irule to do it

 

 

We did config publish services behind F5 with 3 ip public of 3 isp other. My DNS server also behind f5

 

pls help me write irule

 

 

many thanks

 

HungPm