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    I got a quick question in regards to IP address and computer name on the network. When I do a ipconfig on my computer via command prompt on my computer connected to the company network, I get my ip address say 10.3.40.158.

    When I do a nslookup of my computer name, it shows the correct ip address 10.3.40.158.

    But, the weird thing is when I do a nslookup of the ip address 10.3.40.158, it shows a different computer name and not my computer name.

    Is it because maybe the IP address is now distributed to me now, but maybe it just haven't refreshed in the DHCP?

    Wednesday, October 17, 2007 3:55 PM

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    This is quite common and you are right, its because the DNS hasn't been refreshed and shows the old host name it was initially registered to.

     

    I have a similar case as well. I been allocated a bunch of IPv4 and IPv6 addresses. The IPv6 are natively allocated and will resolve properly in either way (reverse or not). But 5 of my IPv4 were previously used by someone else and he/she used his own DNS servers to resolve them. Now I use them natively. I don't use any registered DNS server to handle them.

     

    So, if you do a DNS look up on my domain name, it will resolve correctly to the IP address but if you do a reverse DNS, it will point to a different domain name.

    Thursday, October 18, 2007 11:25 AM