Indeed ARP spoofing is prevented by default, but AFAIK, if you want it enabled 
for a port / network, you can simply disable the security groups on that 
neutron network / port.

Best regards,

Claudiu Belu

From: Татьяна Холкина [holk...@selectel.ru]
Sent: Tuesday, March 13, 2018 12:54 PM
To: openstack-dev@lists.openstack.org
Subject: [openstack-dev] [neutron] Prevent ARP spoofing

I'm using an ocata release of OpenStack where the option prevent_arp_spoofing 
can be managed via conf. But later in pike it was removed and it was decided to 
prevent spoofing by default.
There are cases where security features should be disabled. As I can see now we 
can use a port_security option for these cases. But this option should be set 
for a particular port or network on create. The default value is set to True 
[1] and itt is impossible to change it. I'd like to suggest to get default 
value for port_security [2] from config option.
It would be nice to know your opinion.


Best regards,
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