You can only access multiplex servers by using logical servers. Login policies control user access to the logical servers.
You can assign one or more logical servers to a login policy. All users using the login policy can only access those multiplex servers that are effective members of the assigned logical servers. You can make one of these assignments to a login policy:
ALL – allows access to all logical servers, so that you need not specify server names when you add or drop them.
AUTO – prevents login redirection. Returns an error if the node belongs to multiple logical servers. If the node belongs to a single logical server, uses the logical server context of the current node.
COORDINATOR – allows access to the current coordinator node, so that, should the coordinator role passes from one server to another, you need not specify the new server name.
One or more user-defined logical servers.
OPEN – allows access to all multiplex nodes that are not members of any user-defined logical servers.
SERVER – allows access to all multiplex nodes, subject to the semantics of the SERVER logical server.
NONE – denies access to any multiplex server.