Bug 1314203

Summary:	dhclient establishes a lease on the explicitly specified interface, but then endlessly retries old leases on other interfaces
Product:	[Fedora] Fedora	Reporter:	MK <mk>
Component:	dhcp	Assignee:	Jiri Popelka <jpopelka>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	23	CC:	jpopelka, thozza
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-12-20 19:12:39 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description MK 2016-03-03 08:26:13 UTC

Description of problem:

`dhclient -v iface1`, after establishing a lease with the dhcp server on iface1, will continue to log failed DCHPDISCOVER etc. messages involving other interfaces if they have a previous lease in `/var/lib`.

This is probably an upstream issue but I thought I'd start here. It is not all that significant, except that 1) It contradicts the man page, which says that "in case the DHCP server is unavailable when dhclient is first invoked [...] old leases from the dhclient.leases file which have not yet expired are tested", 2) It becomes irritating when you want to use the other interface for something and realize that dhclient may be (trying) to use it for some other purpose (which may or may not impact whatever else you are trying to do).

Note that I do not use NetworkManager or normal autoconfigured networking; my `/etc/sysconfig/network-scripts` contains only one file, `ifcfg-lo`. I just start inet connections manually since it is only a matter of one or two commands. However, I think this is irrelevant to the issue.

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

4.3.3 ?

How reproducible:

Always. The only way to prevent this is to either remove the old leases from `/var/lib` or use `-cf` with a conf file which mentions only one interface.

Actual results:

Dhclient establishes a lease with the interface specified on the command line then endlessly leaves syslog messages about retrying old leases on inactive interfaces, and continues to do so when those interfaces are activated for other purposes.

Expected results:

Dhclient should acquire a lease on the interface specified on the command line and then go to the background to maintain it, nothing else.

Additional info:

Comment 1 Jiri Popelka 2016-03-03 08:48:12 UTC

*** Bug 1314201 has been marked as a duplicate of this bug. ***

Comment 2 Fedora End Of Life 2016-11-24 15:54:03 UTC

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Comment 3 Fedora End Of Life 2016-12-20 19:12:39 UTC

Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
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