They are not Digil and Mirifle. According to clan folklore, one group, the Quranyow, are Dir whilst the Tuuf are related to Gaaljecel, Degoodi, Cawramale and come under the Gardheere Samaale branch. Hawiyes and other Samaales know this, it is just the non-Samaales that are ignorant of their clan affiliation.
The Garre and Degoodi lived further North in Historical times and actually preceded the Mareexaan in Southern Somalia/K5. This happened during the Somali 'Volkswanderung' in the post Ahmed Gurey era. The Ogaden of the Jubbas only came to the scene after being pushed across the Jubba River by the Rahanweyn who were too strong for them. They then sought sanctuary among the Orma before usurping them after a smallpox epidemic and attacks from multiple clans weakened the Orma. It is the Cawlayahan Ogaden of Southern K5 that caused the later split between the Oromos and Rahanweyn in areas where they traditionally bordered each other. Nonetheless, some Ogaden did end up joining the Rahanweyn. For instance, the Hadamo have Ogadens among them.