RE: IP address allocation

It may depend on the kind of ISP you're dealing with. DSL/Cable providers seem to assigning generic DNS entries such as host01.client.com, host02.client.com, etc for every IP address in a block. I believe most ISP's offering leased lines will do the same however they will usually change the DNS entries if requested. The alternative would be to manage your own DNS.

To answer your question more directly: Yes, most ISP's will assign generic DNS entries for all IP's in a block regardless of whether or not they are currently in use.

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Brad Hill
brad@quonic.com

> -----Original Message-----
> From: Terry [mailto:tech@futurecourse.com]
> Sent: Thursday, July 31, 2003 5:41 AM
> To: security-basics@securityfocus.com
> Subject: IP address allocation
>
> Hi,
>
> I've googled but haven't really come across anything that answers my

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