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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's avatar
ekaleido
Icon for Cirrus rankCirrus
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"
    }
  }
 }
}