DNS delegation of 126.190 updated: Jun 20, 2013 12:01:45 AM
Delegation
step
query
auth
servers
1
190.126.in-addr.arpa.
.
(b,f,l,d,a,e,j,h,k,i,c,g,m).root-servers.net.
2
190.126.in-addr.arpa.
in-addr.arpa.
(d,a,f,b,c,e).in-addr-servers.arpa.
3
190.126.in-addr.arpa.
126.in-addr.arpa.
ns002.bbtec.net. ns001.bbtec.net. sec1.apnic.net.
4
190.126.in-addr.arpa.
190.126.in-addr.arpa.
(ns002,ns001).bbtec.net.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about 190.126.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask d.in-addr-servers.arpa where we learn that 126.in-addr.arpa is delegated to three name servers, including ns002.bbtec.net (3), so we ask that one and learn that 190.126.in-addr.arpa is delegated to two name servers (4), so we ask ns002.bbtec.net and get the following answer: