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D__Charles_Shid's avatar
D__Charles_Shid
Icon for Nimbostratus rankNimbostratus
Jul 15, 2010

Akamai, True-Client-IP, and fun with logging

Hi all!     This is my first post here, so please be gentle. I really did run searches for this, but kept coming up zero. My problem is this: my client is considering using Akamai to improve c...
application delivery
dev
devops
iRules
hooleylist's avatar
hooleylist
Icon for Cirrostratus rankCirrostratus
Jul 15, 2010
Hi Daniel,

You could translate the source address on serverside connections to the True-Client-IP header value. The web servers' default gateway would need to be the LTM floating self IP though for this to work. You wouldn't need to do any manual "untranslation" as long as LTM gets the response. 


when HTTP_REQUEST {

    Check if the True-Client-IP HTTP header has an IP address
   if {not ([catch {IP::addr [HTTP::header True-Client-IP] mask 255.255.255.255}])}{

       No error parsing the header as an IP address, so use it for SNATing
      snat [HTTP::header True-Client-IP]
   }
}

Aaron