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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

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.

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

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