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Forum Discussion

F5Hopper_28651's avatar
F5Hopper_28651
Icon for Nimbostratus rankNimbostratus
Aug 17, 2016

passing or changing header data and passing to end server for identification.

I have a question, I made the below Irule... I was asked to update and send a new header to the end server for internal server redirection. Maybe not a header but something so they can see the traf...
application delivery
iRules
LTM
ekaleido_26616's avatar
ekaleido_26616
Icon for Cirrocumulus rankCirrocumulus
Aug 17, 2016

Perhaps something like this to replace your HTTP::response 200s?

switch [whereis $client_ip abbrev] {
  "NJ" { HTTP::header insert User-Loc "NJ" }
  "ID" { HTTP::header insert User-Lov "ID" }
}
  • F5Hopper_28651's avatar
    F5Hopper_28651
    Icon for Nimbostratus rankNimbostratus
    Aug 17, 2016

    that looks good, I will give that a try.

    when HTTP_REQUEST {
if { ([string tolower [HTTP::uri]] starts_with "/testingpage") } {
         Parse the client IP from the CDN header
        set client_ip [HTTP::header "Incap-Client-IP"]
        if { $client_ip eq "" }{
             The header was empty/did not exist, so use the actual client IP
            set client_ip [IP::client_addr]
        }
        switch [whereis $client_ip abbrev] {
            "NJ" {
                HTTP::header insert User-Loc "NJ"
    }
            "ID" {
                HTTP::header insert User-Loc "ID"
    }
            "CA" {
                HTTP::header insert User-Loc "CA"
    }
  }
 }
}