Two DNS Servers with one static IP

[StargazeR82]

How would I go about setting up two dns servers if I have one static IP address assigned from my ISP? My router is running NAT and has pinholes on given ports. Port 53(dns)is pointed to my primary server. Is it possible to set up a second dns server behind the router? If so, how?

Thanks.

 

[thedaver]

you need two IPs to comply with how the registrars and anybody else would view your "ns1." and "ns2." hosts by distinct IPs. Surely your ISP can cough up another IP!?!