Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Antonio_Varni's avatar
Antonio_Varni
Icon for Nimbostratus rankNimbostratus
Jan 21, 2008

replace all instances of a HTTP header

How can I replace all instances of a given header?   Specifically in my case I am trying to remove all previously set X-Forwarded-For headers before having the LTM inject it's own. The X-Forwarded...
application delivery
dev
devops
irules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 21, 2008
Deb posted a nice solution for this a while back:


when HTTP_REQUEST {
    strip all instances of the given header
   while {[HTTP::header exists x-forwarded-for]}{
      HTTP::header remove x-forwarded-for
   }
}

Aaron