DNS Example packet dump

    172.30.0.77.64812 > 172.30.0.9.53:
         4+ A? fivedots.coe.psu.ac.th. (40)

    172.30.0.9.53 > 172.30.0.77.64812:
         4* 1/2/2 A 172.30.0.5 (125)


    172.30.0.77.64811 > 172.30.0.9.53:
         4+ A? www.psu.ac.th. (31)

    172.30.0.9.53 > 172.30.0.77.64811
         4* 2/2/2 CNAME s1.psu.ac.th., 
                  A 192.100.77.61 (131)


    172.30.0.77.64799 > 172.30.0.9.53:
         4+ A? oddball.psu.ac.th. (35)

    172.30.0.9.53 > 172.30.0.77.64799:
         4 NXDomain* 0/1/0 (90)