While configuring one of Cisco's routers and reading documentation I've found an interesting feature:
ip domain round-robin.
Documentation says, that this options makes dns server rotate entries within TTL. I have enabled this feature under the impression that this will give out rotated entries upon every request. But that is not the case, and later I've found a note on this feature, that clarifies that it does so only for internal lookups. And indeed, issuing ping on a console does rotate entries and clients receive rotated entries after that.
With it being enabled only for an internal lookup, it must have a rather limited usefullnes. What is the purpose of this feature then? Is there any option to enable this for all clients?