Each wind turbine causes a wake with a reduced wind velocity and an increased turbulence. This wake influences the power and mechanical loads of downstream turbines. This strong connection to turbines in a wind farm is an opportunity for farm-wide optimal control, in particular when dynamic control for a wind gust is required. We use the already known axial-induction-based control and investigate its potential using mathematical optimization in the case of a wind gust in a wind field with turbulence and a simulated farm consisting of two turbines in wind direction. We show that optimal control of the upstream turbine significantly reduces the total tower load and increases the total power.