| step | query | auth | servers |
| 1 | 68.37.194.173.in-addr.arpa. | . | (f,k,h,g,a,b,e,d,m,l,j,i,c).root-servers.net. |
| 2 | 68.37.194.173.in-addr.arpa. | in-addr.arpa. | (e,f,a,c,d,b).in-addr-servers.arpa. |
| 3 | 68.37.194.173.in-addr.arpa. | 173.in-addr.arpa. | (u,y,x,v,r,z,t,w).arin.net. |
| 4 | 68.37.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns3,ns2,ns4,ns1).google.com. |
We pick