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-   -   DHCPD Server Lease Time & Static IPs (https://www.linuxquestions.org/questions/linux-server-73/dhcpd-server-lease-time-and-static-ips-549927/)

emphaze 04-29-2007 10:33 AM

DHCPD Server Lease Time & Static IPs
 
Hi all. I was just wondering...:)
Imagine a network of 1000+ PC's. All IP addresses are assigned by DHCP server dynamically with a specified lease time. What will happen if several users decide to enter their IP's as static ones? Is there a way for dhcp server to determine, that these ip's are still in use and because of that they are not supposed to be given or because DHCP client on users machine is not enabled the DHCP server will decide that these ip are not actually in use and there will be a IP conflict as a result?

Thank you for your answer.

bsdunix 04-29-2007 02:30 PM

Quote:

Imagine a network of 1000+ PC's. ... What will happen if several users decide to enter their IP's as static ones?
With such a large network, I would hope the IT managed the network without users having the capability to change settings. But, I understand the hypothetical question. :)
Quote:

Is there a way for dhcp server to determine, that these ip's are still in use ...
Code:

# man dhcpd.conf
Seach for conflict

The DHCP server checks IP's by pinging the network to see if the IP is in use before assigning it.

emphaze 04-30-2007 07:06 AM

That's what i thought :) Thank you for making the things clear :)


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