I would like to know if there is a way to associate the VIP address to a unique hostname.
Thank you in advance.
the association hostname <-> ip is done in a dns server.
Not sure what you expect on the loadbalancer ??
If you meant distinguish content rules with identical vip but for different domain name, this is possible.
On a CSS you can use the url command ie: url "//my-domain.com/*"
The same exist for ACE and CSM.