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FFiver_28568's avatar
FFiver_28568
Icon for Nimbostratus rankNimbostratus
Jun 25, 2007

Precedence

Hey all!

 

 

Quick question: can anyone tell me the precedence/order the F5 uses to evaluate irules/nats/snats? Any help is much appreciated!

 

 

Thanks,

 

Scott
application delivery
dev
devops
iRules

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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jun 26, 2007
    I think it's iRule > virtual server > SNAT.

     

     

    If you have a default SNAT defined and SNAT on the virtual server, the virtual server's configuration will take precedence. You can have a SNAT enabled on a virtual server or configured globally, and then disable it in a rule.

     

     

    I wouldn't suggest trying to mix NATs and SNATs on the same addresses. A SNAT or one-to-one virtual server should provide more granularity and fewer issues.

     

     

    Aaron