| step | query | auth | servers |
| 1 | 242.128.180.213.in-addr.arpa. | . | (b,a,k,g,i,h,m,j,l,f,e,d,c).root-servers.net. |
| 2 | 242.128.180.213.in-addr.arpa. | in-addr.arpa. | (c,a,f,b,e,d).in-addr-servers.arpa. |
| 3 | 242.128.180.213.in-addr.arpa. | 213.in-addr.arpa. | sns-pb.isc.org. tinnie.arin.net. ns3.nic.fr. sec1.apnic.net. sec3.apnic.net. pri.authdns.ripe.net. |
| 4 | 242.128.180.213.in-addr.arpa. | 128.180.213.in-addr.arpa. | ns1.aster.pl. dns3.onet.pl. dns2.onet.pl. dns1.onet.pl. |
We pick