Reviewed:  https://review.openstack.org/333829
Committed: 
https://git.openstack.org/cgit/openstack/neutron/commit/?id=0fce3ca2c1641fbcfb8327a86d7225e2c3972263
Submitter: Zuul
Branch:    master

commit 0fce3ca2c1641fbcfb8327a86d7225e2c3972263
Author: Jens Harbott <[email protected]>
Date:   Mon Oct 29 17:08:33 2018 +0000

    Secure dnsmasq process against external abuse
    
    Currently any dhcp agent instance will work as an open resolver. For
    deployments using publicly routed addresses for tenant networks, this
    allows the agent being abused in dDoS attacks, see [1].
    
    By setting the `--local-service` option dnsmasq will filter DNS queries
    and reply only to queries from directly attached networks.
    
    [1] https://bugs.launchpad.net/neutron/+bug/1501206
    
    Closes-Bug: 1501206
    Change-Id: I76d810aad2ce0f15a88bd798963012fa0efca74e


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1501206

Title:
  router:dhcp ports are open resolvers

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