How to ask a DNS resolver listening on a different port than the tcp/udp 53

[Mark Felder]

On Fri, Sep 27, 2013, at 13:20, Laurent SALIN wrote:
> Hello,
> I wondering how i can send queries to a dns resolver listening on a
> different port than the normaly 53 tcp/udp ?
> 
> The situation:
> I've got a vps who running NSD as a autoritative nameserver, listening
> on tcp/udp 53 and unbound as personnal resolver, listening on a
> different tcp/udp port. It work very well on his own or with my OpenBSD
> gateway at home as DNS cache.
> 

Is there any way to use multiple IPs?