Big time coffee drinker here!
While camping I use an old fashioned 6 cup perc style with either my stove or right on the fire.
I use 4 scoops of coffee, fill it with water, once it comes to a boil I'll either turn down the stove to just simmer or move from hottest part of fire. Let it simmer for about 4 minutes. Remove from heat, let it steep (basiclly settle) for a couple of minutes then right into the cup for me.
I ALWAYS make a pot in the evening and put it into my Thermos bottle. In the morning while the pot is on the fire I pour myself a cup from thermos and heat it a bit if needed. No waiting that way.