[openstack-dev] [neutron] dangerous allowed_address_pairs?

2015-06-30 Thread James Dempsey
Hi All, Would someone help me understand some potentially dangerous interactions between allowed_address_pairs and security groups? My cloud is Icehouse at the moment, but the behaviour seems unchanged in master. [1] Suppose a User wants to build an instance that acts as a router. User creates

Re: [openstack-dev] [neutron] dangerous allowed_address_pairs?

2015-06-30 Thread Kevin Benton
Yes, this is expected behavior. Allows address pairs were mainly intended for a few extra IP addresses that the port owns. Using /0 implies that the Neutron port is responsible for all of those addresses. So if you allow traffic from that Neutron port, it allows traffic from /0. The router