Irule help for a VS without default pool assigned.

Hello,

You can do the following :

when HTTP_REQUEST {
    if { [HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS") } {
         do nothing
    } else { 
        reject
    } 
}

or you can negate the if condition :

when HTTP_REQUEST {
    if { !([HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS")) } {
        reject
    } 
}