Pantek Library
Hosting Provided By
CybrHost
High Speed Hosting

Re: IP address allocation

From: Edward Rustin <ed(at)well.com>
Date: Thu Jul 31 2003 - 12:23:36 EDT


IP Allocation has nothing to do with which IPs are being used.

What the IP allocation from ARIN/RIPE/APNIC/LANIC does is give you right to use those IP addresses which should (in theory) be routable to you (depending of course on things like who your internet provider is).

To use your example. Say I'm allocated the the IP block 200.0.0.8 through 200.0.0.15 and that I've been allocated them by RIPE via my ISP (RIPE and ARIN will only deal directly with you if you need a /20 or greater, otherwise you're expected to request the block through your ISP). From the point that I've been allocated this IP block then anyone that puts those IPs into the whois databases at RIPE will get my details back.

This is the right thing (even if I'm not useing any of those IPs) because for a set period of time those IPs are my 'property' they are not IPs that are available for anyone to use. They are there for me.

I'm not sure but I think that you are confusing this with the DNS system.

However all the DNS system does is to translate a domain name "sillyness.com" into an IP address. Once again this has nothing to do with that IP address being used or not (although it would be a bit silly to have a domain pointing at an unused IP address). This also has nothing to do with IP allocations. You could happily register a domain name and point it at an IP address that isn't owned or controlled by you

But also with the DNS records, if the record exists then people can see the information within it regardless of the IP address it points at being active or not.

I hope this answered your query.

Do you need help?X

Edward Rustin

Director of Security, Onlineguardians.org Support Analyst, Get Plc

On Thu, 31 Jul 2003, Terry wrote:

> Hi,
>
> I've googled but haven't really come across anything that answers my



Received on Thu Jul 31 13:24:37 2003

This archive was generated by hypermail 2.1.8 : Wed Aug 23 2006 - 14:06:45 EDT


Contact Us  Legal Notices  Order Services Online 
Pantek Home  Privacy Policy  IT news  Site Map  Pantek Library