This sections adds recursive name servers to the response sent to the client. If there are multiple sections of this type then they will be combined into one set of recursive name servers which is sent to the client.
<recursive-name-servers> address 2001:4860:4860::8888 address 2001:4860:4860::8844 </recursive-name-servers>
Always send this option, even if the client didn’t ask for it.
- address (required, multiple allowed)
The IPv6 address of a recursive name server.