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andre_4691's avatar
andre_4691
Icon for Nimbostratus rankNimbostratus
Jul 07, 2008

source grouping

Dear All,

 

 

Anybody have ever experienced create irules to select server based on source IP Address ?

 

 

Example:

 

IP A will send to Server A as a primary server.

 

IP A will send to Server B as a backup server incase Server A is down.

 

 

IP B will send to server B as a primary server.

 

IP B will send to server A as a backup server incase Server B is down.

 

 

thanks for your help.

 

 

Regards,

 

 

application delivery
dev
devops
iRules
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jul 07, 2008
    Hi,

    You can use priority groups to state that server A is used unless it's down. In that case, server B would be used. You can use a rule like the following to evaluate the client IP address: 

     
 when CLIENT_ACCEPTED { 
  
    if {[IP::addr [IP::client_addr] equals 1.1.1.1]}{ 
  
       log local0. "[IP::client_addr]:[TCP::client_port] matched 1.1.1.1" 
       pool server_a_then_b 
  
    } elseif {[IP::addr [IP::client_addr] equals 2.2.2.2]}{ 
  
       log local0. "[IP::client_addr]:[TCP::client_port] matched 2.2.2.2" 
       pool server_b_then_a 
  
    } else { 
  
        Take some default action? 
       log local0. "[IP::client_addr]:[TCP::client_port] default" 
       pool default_pool 
    } 
 }

    You can use IP::addr (Click here) to test for a single host or network, and a datagroup and the matchclass command (Click here) to test for multiple hosts and/or networks.

    Aaron
  • andre_4691's avatar
    andre_4691
    Icon for Nimbostratus rankNimbostratus
    Jul 08, 2008
    hi,

     

     

    thanks for the answer. I am eager to try out, thxs a lot