Below is the output of two ping commands. The two pings are given one
afer the other without any delay (except a few msecs).

The Network card properties on the machine are set to dynamically
recieve IP/DNS assignments from DHCP server. The machine constantly
recieves IP address of : 192.168.2.29 but always keeps changing it's
DNS name entries. NB/SYS name remains the same.

What can explain this phenomenon?

I know, if I make the IP assignment static within my DHCP console, it
will solve this discrepency but I am wondering, as to from where this
constant DNS name updates while maintaining the same IP, are coming
from?

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C:\Documents and Settings\fax>ping -a 192.168.2.29

Pinging jayabalpc.abc.prd [192.168.2.29] with 32 bytes of data:

Reply from 192.168.2.29: bytes=32 time<1ms TTL=127
Reply from 192.168.2.29: bytes=32 time=22ms TTL=127
Reply from 192.168.2.29: bytes=32 time<1ms TTL=127
Reply from 192.168.2.29: bytes=32 time<1ms TTL=127

Ping statistics for 192.168.2.29:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 22ms, Average = 5ms

C:\Documents and Settings\fax>ping jayabalpc

Pinging jayabalpc.abc.prd [192.168.13.43] with 32 bytes of data:

Reply from 192.168.13.43: bytes=32 time=13ms TTL=127
Reply from 192.168.13.43: bytes=32 time<1ms TTL=127
Reply from 192.168.13.43: bytes=32 time<1ms TTL=127
Reply from 192.168.13.43: bytes=32 time<1ms TTL=127

Ping statistics for 192.168.13.43:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 13ms, Average = 3ms
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