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["Dr. Jens Harbott" <j.harbott@xxxxxxxx>]

Public bug reported:

In the section "Name resolution for instances" (doc/source/admin/config-
dns-res.rst) the functional description for case 2 and 3 is wrong.

In both cases, the DHCP agents do not offer the mentioned IP addresses
to the instances. Instead, the DHCP agents offer the list of IP
addresses of DHCP agents in the respective subnet to the instances in
that subnet. The DHCP agents then run dnsmasq as a forwarding and
masquerading resolver, forwarding DNS requests from the instances to the
configured IP addresses, i.e. to the ones configured in
``dnsmasq_dns_servers`` in case 2 and to the ones configured in
``/etc/resolv.conf`` on the host in case 3.

** Affects: neutron
     Importance: Undecided
     Assignee: Dr. Jens Harbott (j-harbott)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Dr. Jens Harbott (j-harbott)

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https://bugs.launchpad.net/bugs/1715842

Title:
  Wrong information about DNS resolution in admin guide

Status in neutron:
  New

Bug description:
  In the section "Name resolution for instances" (doc/source/admin
  /config-dns-res.rst) the functional description for case 2 and 3 is
  wrong.

  In both cases, the DHCP agents do not offer the mentioned IP addresses
  to the instances. Instead, the DHCP agents offer the list of IP
  addresses of DHCP agents in the respective subnet to the instances in
  that subnet. The DHCP agents then run dnsmasq as a forwarding and
  masquerading resolver, forwarding DNS requests from the instances to
  the configured IP addresses, i.e. to the ones configured in
  ``dnsmasq_dns_servers`` in case 2 and to the ones configured in
  ``/etc/resolv.conf`` on the host in case 3.

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