Re: "Rogue" IP address?

Many ISPs provide their own domain suffix to a host (in your case your
router) when it gets it's DHCP configuration. There probably is a computer
at earthlink with that name. XP and 2000 both atempt to resolve names
through DNS by default. If you're not running your own DNS server, and your
router is acting as a proxy, it will query it's DNS server using the domain
suffix provided in it's configuration info. Try "nslookup heather" and see
which DNS server resolves the name.

....kurt


"Jim Wray" <jgwray@xxxxxxxxxxx> wrote in message
news:uhThbwrGGHA.1760@xxxxxxxxxxxxxxxxxxxxxxx
> I've tried without success to figure this out...perhaps one of you network
> guru's can help.
>
> I have four computers on my Windows 2000 home network connected by a
> switch
> behind a firewall appliance. I can see all of the computers by their
> machine
> name on NETWORK PLACES. I can ping them all from the command line using
> their IP addresses. I can ping three of them from the command line using
> their machine name. BUT, when I try to ping the fourth by it's machine
> name
> (heather) I get the following message: Pinging heather.earthlink.net
> [204.250.137.xxx] with 32 bytes of data: followed by four request timed
> out
> messages. Earthlink is in fact my ISP.
>
> Pinging the machines that work I get a slightly different message format:
> Pinging ashley [192.168.1.xxx] with 32 bytes of data followed by four
> successful ping responses.
>
> On the machine that's not working, why does it respond with "earthlink.net
> [204.250.137.xxx]" appended to the machine name...is that the expected
> response format for a failed ping and more importantly where is that
> 204.250.137.xxx address coming from...that is a public address that I have
> no idea what it is doing there and why it is being associated with an
> internal machine.
>
> Obviously this is not causing any real problems - the computer works
> perfectly and communicates with the internet as it should - but I am at a
> loss to explain it and since I'm trying to learn something about networks
> I
> think I need to understand what is causing this situation.
>
>
> I'd be most appreciative for any feedback.
>
>
> --
>
>
> <Smith&Wesson...the original point and click interface>
>
>
>
>


.

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