DNS delegation of 74.125 updated: May 18, 2013 10:43:05 PM
Delegation
step
query
auth
servers
1
125.74.in-addr.arpa.
.
(f,k,d,l,b,m,j,g,c,e,h,a,i).root-servers.net.
2
125.74.in-addr.arpa.
in-addr.arpa.
(f,e,c,d,a,b).in-addr-servers.arpa.
3
125.74.in-addr.arpa.
74.in-addr.arpa.
(x,t,r,z,v,u,y,w).arin.net.
4
125.74.in-addr.arpa.
125.74.in-addr.arpa.
(ns3,ns2,ns1,ns4).google.com.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about 125.74.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask f.in-addr-servers.arpa where we learn that 74.in-addr.arpa is delegated to eight name servers, including x.arin.net (3), so we ask that one and learn that 125.74.in-addr.arpa is delegated to four name servers (4), so we ask ns3.google.com and get the following answer: