I want to run an Ethernet wire from the living room where my TV and router are to the basement where my office is. The problem is that when I lifted the drop ceiling in the basement, I saw that the drywall is attached directly to the brick wall (actually looks like concrete blocks) that I share with my neighbor. The wall to the right is where the cable hookup is and that goes down to the basement as well. Is there a way to run the cable along that brick wall or should I drop the Ethernet cable in the cable hookup box?
Edit:This is interior wall