FR 1949 then FR 6875 at Dublin
Luxembourg → Dublin → Barcelona
Timetable, Dublin time
18:00FR 1949 from Luxembourg at the gate
11:20FR 6875 to Barcelona leaves the gate
17 h 20 apart on the timetable, overnight
FR 6875 leaves 17 h 20 after FR 1949 arrives on the timetable: more than half a day, so not a connection we count.