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Forum Discussion

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.   ...
application delivery
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devops
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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