DNS delegation of 74.125.130 updated: Jun 19, 2013 6:11:40 PM
Delegation
step
query
auth
servers
1
130.125.74.in-addr.arpa.
.
(i,b,h,g,j,a,k,l,c,e,m,f,d).root-servers.net.
2
130.125.74.in-addr.arpa.
in-addr.arpa.
(c,b,e,a,f,d).in-addr-servers.arpa.
3
130.125.74.in-addr.arpa.
74.in-addr.arpa.
(x,r,y,u,v,z,w,t).arin.net.
4
130.125.74.in-addr.arpa.
125.74.in-addr.arpa.
(ns4,ns3,ns2,ns1).google.com.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about 130.125.74.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask c.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 ns4.google.com and get the following answer: