Forum Discussion

  • Deb_Allen_18's avatar
    Deb_Allen_18
    Historic F5 Account
    You could try using the trick we use for HTTP collection mechanics where you force the connection to HTTP/1.0 (RFC2616 prohibits servers from responding to 1.0 requests w/chunked encoding):
    when HTTP_REQUEST { 
        Don't allow data to be chunked 
       if { [HTTP::version] eq "1.1" } { 
           if { [HTTP::header is_keepalive] } { 
              HTTP::header replace "Connection" "Keep-Alive" 
           } 
           HTTP::version "1.0" 
        } 
     }

     

     

    Just add a Data Group list of type Address that includes the IP addresses & networks for which chunking is not desired, and modify the above code snip to add a source IP test against the address class:
    when HTTP_REQUEST { 
        if {[matchclass [IP::client_addr] equals $::NoChunkIPs]}{ 
            Don't allow data to be chunked 
           if { [HTTP::version] eq "1.1" } { 
               if { [HTTP::header is_keepalive] } { 
                  HTTP::header replace "Connection" "Keep-Alive" 
               } 
               HTTP::version "1.0" 
           } 
        } 
     }

     

     

    hth

     

    /d
  • Support for changing profile parameters in iRules is not there yet.
  • Deb_Allen_18's avatar
    Deb_Allen_18
    Historic F5 Account
    hate to do the matchclass for each request is all...

    this s/b more efficient & does the same thing:

       
     when CLIENT_ACCEPTED {   
        set chunk 1   
        if {[matchclass [IP::client_addr] equals $::NoChunkIPs]}{    
           set chunk 0   
        }   
     }   
     when HTTP_REQUEST {    
        if { $chunk == 0 }{    
            Don't allow data to be chunked    
           if { [HTTP::version] eq "1.1" } {    
              if { [HTTP::header is_keepalive] } {    
                 HTTP::header replace "Connection" "Keep-Alive"    
               }    
               HTTP::version "1.0"    
           }    
        }    
     }

    /d
    • Jason_Adams's avatar
      Jason_Adams
      Icon for Employee rankEmployee

      ^ Expanding the above iRule as it was clobbered during one of our platform migrations

      when CLIENT_ACCEPTED priority 500 {
      set chunk 1
      if {[class match -- [IP::client_addr] equals "/Common/NoChunkIPs"]} {
      set chunk 0
      }
      }
      when HTTP_REQUEST priority 500 {
      if {$chunk == 0} {
      # Don't allow data to be chunked
      if {[HTTP::version] eq "1.1"} {
      if {[HTTP::header is_keepalive]} {
      HTTP::header replace "Connection" "Keep-Alive"
      }
      HTTP::version "1.0"
      }
      }
      }