bosch washer wfo2467gb/15?

the door seal on my washer was pulled of the drum when my darling wife removed some washing so the only thing i could do was to strip the washer down and refitt the seal all went well after the advice that was all ready written on this site the only problem im having is were the seal attaches to the drum there is a secondary lip on the seal does this lip sit on top of the inner drum or between the outer and inner any help on this would be very greatful