If I'm reading the Aura of Faith paladin class feature correctly, then that should mean that a paladin and his allies can bypass most DR of evil creatures, limited to DR/Epic. The Aura of Faith feature says that a paladin's (and his allies within 10 feet) weapon attacks are treated as good-aligned for bypassing DR, which at the point of DR in magic equivalence it counts as a +5 magic weapon, which also bypasses magic, cold iron, silver, adamantine, and evil DR.