| step | query | auth | servers |
| 1 | 125.168.192.in-addr.arpa. | . | (d,k,m,e,f,a,c,b,h,g,i,j,l).root-servers.net. |
| 2 | 125.168.192.in-addr.arpa. | in-addr.arpa. | (d,e,c,a,b,f).in-addr-servers.arpa. |
| 3 | 125.168.192.in-addr.arpa. | 192.in-addr.arpa. | (y,dill,w,v,u,z,t,x).arin.net. |
| 4 | 125.168.192.in-addr.arpa. | 168.192.in-addr.arpa. | (blackhole-1,blackhole-2).iana.org. |
We pick