neutron/releasenotes/notes/use_random_fully-527b20bc52...

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---
features:
- |
Add ``use_random_fully`` setting to allow an operator to disable
the iptables random-fully property on an iptable rules.
issues:
- |
If the ``use_random_fully`` setting is disabled, it will prevent
random fully from being used and if there're 2 guests in different
networks using the same source_ip and source_port and they try to
reach the same dest_ip and dest_port, packets might be dropped in
the kernel do to the racy tuple generation . Disabling this
setting should only be done if source_port is really important such
as in network firewall ACLs and that the source_ip are never repeating
within the platform.