Bug 1443139

Summary:	dhcp-vendorclass doesn't match in dhcpv6
Product:	Red Hat Enterprise Linux 7	Reporter:	Derek Higgins <derekh>
Component:	dnsmasq	Assignee:	Petr Menšík <pemensik>
Status:	CLOSED ERRATA	QA Contact:	Jan Ščotka <jscotka>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	pemensik, psklenar, racedoro, thozza
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	dnsmasq-2.76-1.el7	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-08-01 22:56:41 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:
Bug Depends On:
Bug Blocks:	1335964

Description Derek Higgins 2017-04-18 14:57:12 UTC

Description of problem:

In order to set a tag on dhcp PXE requests (and send appropriate bootfile values) in the dnsmasq config file I have
dhcp-vendorclass=set:pxe6,enterprise:343,PXEClient

the tag doesn't get set when the dhcp6 solicit packet comes in

Version-Release number of selected component (if applicable):
dnsmasq-2.66-21.el7.x86_64

How reproducible:
Every time


In order for the tag to be set we need a fix
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=ef1d7425e31df52f6d9c1427516ed55a0f8513ff

Comment 2 Derek Higgins 2017-04-18 15:07:38 UTC

Giving a bit more context here, in order for network boot to work using dnsmasq as configured by openstack on Directors undercloud, I've had to set aside separate IP ranges for PXE, iPXE and deployed IP allocations of overcloud nodes.


This is being configured, by setting tags if PXE or iPXE is detected
dhcp-vendorclass=set:pxe6,enterprise:343,PXEClient
dhcp-userclass=set:ipxe6,iPXE
dhcp-range=tag:pxe6,fd00:1101::0001:0000:0000,fd00:1101::0001:ffff:ffff
dhcp-range=tag:ipxe6,fd00:1101::0002:0000:0000,fd00:1101::0002:ffff:ffff
dhcp-option=tag:pxe6,option6:bootfile-url,tftp://[fd00:1101::1]/ipxe.efi
dhcp-option=tag:ipxe6,option6:bootfile-url,http://[fd00:1101::1]:8088/boot.ipxe


but the first option "dhcp-vendorclass" doesn't work on RHEL 7.3's version of dnsmasq.

Comment 3 Petr Menšík 2017-04-26 13:48:40 UTC

Hello Derek,

thank you for you report. Specified commit is already included in rebased version 2.76, already prepared for RHEL 7.4. It will be fixed in next minor release.

Hope that helps

Comment 18 errata-xmlrpc 2017-08-01 22:56:41 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2117