Could be he is a blue lacy that is red in color. Let me explain. Blue lacys are now a Texas state offical dog. They come in blue, blue/tan (like a rott but with blue replacing the black), and red (can be deep red to brilliant yellow). Mine is bright yellow. Lacys tend to have yellow eyes but not always. The Lacy brothers were the ones that brought the lacy breed to Marble Falls where they then spread. The brothers donated the pink granite that graces the Austin capitol building from their lands. If you want more info then go to:
www.lacydog.com/
Worth a look.