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Old 30-10-2011, 09:46   #10
Ignitionnet
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Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 47
Posts: 13,995
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Re: What happens to old IP address?

Quote:
Originally Posted by chambohambo View Post
Thanks for replying to my post "Ignitionnet" so when ever a customer gets a new IP what happens to the old one? does it automatically go back into the IP pool for another customer to get?
No, it goes back into the pool once the current lease has ended. You may lose your IP address due to moving line cards - you'll be forwarded to the server you request the IP from via a slightly different route so the IP request isn't the same - the server will remember which MAC address had that IP until the week long lease is done then it'll be released back to the available pool.

The DHCP server has no way of knowing that you won't be asking for the same IP address back and allocates them for fixed periods.

---------- Post added at 08:46 ---------- Previous post was at 08:43 ----------

Quote:
Originally Posted by Nopanic View Post
The addresses are owned and paid for by VM so they are recycled as soon as possible.
IP addresses are neither paid for nor owned. VM are allocated use of some of them but they are considered a public resource.

VM are required to make as efficient use as possible of their available allocation, whether they do or not is, in common with most operators, extremely debatable
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