Cannot print a reverse portrait with CUPS in RHEL 6

Issue

• I want to print a reverse portrait with lp command (CUPS). I use this command:

  lp -d PRINTER_NAME -o orientation-requested=6 file.pdf 
  

  This command prints but not rotate the page by 180°, the printed page looks the same as if I had omitted the -o orientation-requested=6 option.

• I cannot print a PDF file upside down so it matches the way the paper is fed into the printer.
• We would like to know if RHEL 6 CUPS has support for paper rotation. We have a need to rotate the print job 180 degrees, as the paper is fed in that way.