DNS delegation of 68.180 updated: May 21, 2013 9:48:55 PM
Delegation
step
query
auth
servers
1
180.68.in-addr.arpa.
.
(f,d,m,i,h,l,k,j,e,c,g,b,a).root-servers.net.
2
180.68.in-addr.arpa.
in-addr.arpa.
(a,e,b,d,c,f).in-addr-servers.arpa.
3
180.68.in-addr.arpa.
68.in-addr.arpa.
(w,t,u,z,v,r,x,y).arin.net.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about 180.68.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask a.in-addr-servers.arpa where we learn that 68.in-addr.arpa is delegated to eight name servers, including w.arin.net (3), so we ask that one and get the following answer: