my cube goes through a wall

i have a cube player and it is bounded by walls(Other cubes).I added a rigid body component to my player cube and disabled gravity and kinematics.When i bump into the wall i go straight through it.I tried to enable only gravity but that disturbs the movement of the player.Gravity and kinematics also goes through the wall and when nothing is selected, i bounce off the wall in slow motion.

Please help as i want to keep the cube bounded by the walls.
Any help would be appreciated.
Thanks!!

Did you add Box Colliders to your wall? and please make sure they are not triggered.