Ingres in swarm

Hi! A have 3 Nodes in Swarm Cluster
1 - Manager
2 - Worker - TAG: Stage
3 - Worker - TAG: Prod

I created service with placement on node.role = Worker and node.lable.TAG=Stage
And I cant acces it from Manager Node ip address. Only from Worker node TAG: Stage. I dont understand how ingress works? Can you explain me how it works.