Bug 1470229

Summary:	[Feature Request] Add keyword(s) in network XML format to specify DHCP options
Product:	[Community] Virtualization Tools	Reporter:	jean-christophe manciot <actionmystique>
Component:	libvirt	Assignee:	Libvirt Maintainers <libvirt-maint>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	crobinso, libvirt-maint, rbalakri
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Hardware:	x86_64
OS:	Linux
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Last Closed:	2017-07-12 18:13:50 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description jean-christophe manciot 2017-07-12 14:37:13 UTC

Description of problem:
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There is one dnsmasq configuration file per network in /var/lib/libvirt/dnsmasq, bypassing the global dnsmasq config file located in /etc/dnsmasq.conf. 

The latter allows the definition of any DHCP option to be sent to the querying client(s), such as boot file name, TFTP server address, and so on...
These options can be sent according to specific tags and client-ids.

Unless I'm missing something (maybe the wiki is not up-to-date or does not go deep enough at https://libvirt.org/formatnetwork.html), the last libvirt version (3.5.0) does not offer those possibilities.

Comment 1 jean-christophe manciot 2017-07-12 14:44:25 UTC

In /etc/dnsmasq.conf, the corresponding keywords are:
- dhcp-host which can be used to set a tag per client-id
- dhcp-option to define a requested option for clients matching a tag
- dhcp-option-force to send a non-requested option for clients matching a tag

Comment 2 Cole Robinson 2017-07-12 18:13:50 UTC


*** This bug has been marked as a duplicate of bug 824573 ***