We study the Scherk-Schwarz reduction of D=11 supergravity with background
fluxes in the context of a recently developed framework pertaining to D=11
supergravity. We derive the embedding tensor of the associated four-dimensional
maximal gauged theories directly from eleven dimensions by exploiting the
generalised vielbein postulates, and by analysing the couplings of the full set
of 56 electric and magnetic gauge fields to the generalised vielbeine. The
treatment presented here will apply more generally to other reductions of
D=11 supergravity to maximal gauged theories in four dimensions.Comment: 27 page
