Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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TMcGov_92811's avatar
TMcGov_92811
Icon for Nimbostratus rankNimbostratus
Jan 21, 2009

IRule to use Pool depending on Client source address

I need to add some more logic to an existing iRule, and I think I need to clean it up before doing so. I'm sure there must be a better way for me to do this. Basically, I just want to examine the clie...
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dennypayne's avatar
dennypayne
Icon for Employee rankEmployee
Jan 21, 2009
Hi,

You'll want to use the matchclass command with a couple of class files (Data Groups in the GUI). Click here

So if you build 2 class files, one called http-Test-mediation and the other alt-http-Test with the appropriate addresses, then use a rule like this: 

  
  when CLIENT_ACCEPTED {  
     if { [matchclass $::http-Test-mediation contains [IP::client_addr]]  } {  
        pool http-Test-mediation  
     } elseif { [matchclass $::alt-http-Test contains [IP::client_addr]]  } {  
        pool alt-http-Test  
     } else {  
       pool alt-http-Test-mediation  
     }  
  }

then you should be able to update your class files without having to change the rule.

Denny