Bug 1301881 - dhcp does not get the right IP address based on MAC address
dhcp does not get the right IP address based on MAC address
Product: Fedora
Classification: Fedora
Component: dhcp (Show other bugs)
x86_64 Linux
unspecified Severity high
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Assigned To: Jiri Popelka
Fedora Extras Quality Assurance
Depends On:
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Reported: 2016-01-26 04:39 EST by Didier G
Modified: 2016-12-20 13:12 EST (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2016-12-20 13:12:57 EST
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Didier G 2016-01-26 04:39:14 EST
Description of problem:

I use a "Orange Livebox Play" router who included a DHCP serve and I set this DHCP server to attribute a fixed IP address based on MAC address to my Fedora 23 box.

This Fedora box is a dual-boot box Fedora 23 and Windows 8.1

When booting on Windows 8.1 Windows get the right fixed address from DHCP but when booting on Fedora 23 Fedora get a random IP address in DHCP range.

I did tests with Fedora Lives.

F16 Live get the right fixed address, F21 and F23 Lives get a random address.

I noticed ifconfig return the MAC address in upper cases for F16 and in lower cases for F21 and F23

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


How reproducible:

Every time 

Steps to Reproduce:
1. dhclient -v -r
2. dhclient -v
3. ifconfig

Actual results:

Random IP

Expected results:

Fixed IP based on MAC address

Additional info:
Comment 1 Jiri Popelka 2016-01-26 06:13:46 EST
Didier, I think it's some sort of https://fedoraproject.org/wiki/Common_F21_bugs#IP_address_discovery_via_DHCP_does_not_work

You can try
# echo 'send dhcp-client-identifier = hardware;' >> /etc/dhcp/dhclient.conf
Comment 2 Didier G 2016-01-26 12:18:55 EST
Hi Jiri,

Bingo !

I created the file /etc/dhcp/dhclient.conf with the line:

send dhcp-client-identifier = hardware;

and it works.

Thanks for your help.
Comment 3 Jiri Popelka 2016-01-26 12:28:35 EST
Ok, I'll leave this open since the bug #1154200 has already been closed (even I'm not going to "fix" this - as explained in the common bugs page).
Comment 4 Fedora End Of Life 2016-11-24 10:12:19 EST
This message is a reminder that Fedora 23 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 23. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '23'.

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to a later Fedora version.

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version prior this bug is closed as described in the policy above.

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Comment 5 Fedora End Of Life 2016-12-20 13:12:57 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.

If you can reproduce this bug against a currently maintained version of
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