Bug 1290648 - Option "deny duplicates" does not work
Option "deny duplicates" does not work
Product: Fedora
Classification: Fedora
Component: dhcp (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Jiri Popelka
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-12-10 22:42 EST by Francisco Panis Kaseker
Modified: 2016-12-20 11:54 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2016-12-20 11:54:47 EST
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Francisco Panis Kaseker 2015-12-10 22:42:36 EST
Description of problem:
I am trying to configure option "deny duplicates" in dhcp server to ignore dhcp client id requests.

Version-Release number of selected component (if applicable):

How reproducible:
Put option "deny duplicates;" in dhcpd.conf to prevent more than one IP per mac, ignoring mac address.

Steps to Reproduce:
1. Stop dhcpd server.
2. Put option above.
3. Start dhcpd server
4. Open fedora 23 server with PXE environment
5. Boot one diskless system using PXE
6. Diskless node will get one IP at bootp protocol and another when initrd start work. Anf if you reboot machine it will get another IP (from initrd) because it will create another UID for the same node. And it will not stop until all IPs from subnet are used. 

Actual results:
More than one IP per diskless node in dhcpd.leases

Expected results:
Only one IP per MAC
Comment 1 Fedora End Of Life 2016-11-24 09:09:18 EST
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Comment 2 Fedora End Of Life 2016-12-20 11:54:47 EST
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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