How to configure listOfServers?

[peachyy]

----------------------application.yaml-----------------------------------------------------
`
zuul:
routes:
api:
path: /api2/**
serviceId: api

api:
ribbon:
listOfServers: http://localhost:9095,http://localhost:9090

ribbon:
eureka:
enabled: false
`

I am setting ribbon.eureka.enabled value false How to configure listOfServers?