| step | query | auth | servers |
| 1 | 10.89.180.213.in-addr.arpa. | . | (i,m,k,h,a,f,d,e,b,l,j,c,g).root-servers.net. |
| 2 | 10.89.180.213.in-addr.arpa. | in-addr.arpa. | (d,a,c,e,f,b).in-addr-servers.arpa. |
| 3 | 10.89.180.213.in-addr.arpa. | 213.in-addr.arpa. | sec1.apnic.net. tinnie.arin.net. ns3.nic.fr. sns-pb.isc.org. sec3.apnic.net. pri.authdns.ripe.net. |
| 4 | 10.89.180.213.in-addr.arpa. | 89.180.213.in-addr.arpa. | (dns01,dns02).ipeer.se. |
We pick