The image above shows the area where you would enter rw 25C when departing EDDF. Note that there are two sets of hold short lines on each of the taxiways leading to the runway.
The ones furthest away from the runway are only in use while ILS cat 2/3 operations are in progress. As far as I know this is not supported by IF, so these can be crossed without ATC permission. The ones closest to the runway is where you should stop until given permission to enter the runway.
I’ve noticed that pilots tend to stop at the ILS markings, and I’ve twice been given “hold position” instructions after crossing them. No harm done, but not strictly correct either.