My oldest cat, Oscar, has always lived with/around dogs. He lets them know who's boss. My oldest dog, Max, thinks cats should play with him. He's been with us for 12 years, and still thinks that today is the day the cats will play with him
.
My "youngest" cat, Emily (age 12), thinks she hates all dogs. She secretly likes them, but can't let on
. She will follow both dogs around the house, and will hiss and spit if they look in her direction. But then she'll keep following them. She's such a drama queen!
My advice is to let them work it out, unless someone's always getting the raw end of the deal.