Creamy Seafood Soup

Name: Creamy Seafood Soup
Ingredients: 4-inch piece of ginger (peeled and sliced); 2 lemongrass; 5 cloves of garlic (finely diced); 24 ounces seafood stock; 2 tsp lime zest; 13.5 ounces coconut milk; 2 carrots (cut into bite size pieces); 1 daikon (cut into bite size pieces); 3 baby bok choy (quartered); 6 shiitake mushrooms (sliced); 3 tbsp fish sauce; 2 tbsp lime juice; salt; pepper; pinch of cayenne; 1 lb salmon (cut into 1 inch portions); 1 1/2 tsp garlic powder; 1/2 tsp onion powder; 1 tsp ginger powder; 1/2 tsp salt; 1/2 tsp pepper; udon (cooked)