** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1869129
Title:
neutron accepts CIDR in security groups that are invalid in ovn
Status in neutron:
Fix Released
Bug description:
We have found that there are some CIDR accepted by neutron, which does
not work in networking ovn. Specifically, these are network CIDRs with
the host bits set.
Steps to reproduce
- Create VM. Attach a floating IP to it
- Remove all security group. Attach a blank security group to it
- Add a security group rule and start ping
For example, if my IP is 10.10.10.175/26 (first 3 octets changed for
privacy), the following security rules work
openstack security group rule create --protocol icmp --remote-ip
10.10.10.175/32 cidr
openstack security group rule create --protocol icmp --remote-ip
10.10.10.128/26 cidr
However, the following security group rule do not work
openstack security group rule create --protocol icmp --remote-ip
10.10.10.175/26 cidr
FWIW, in our testing, CIDRs like 10.10.10.175/26 work in other
drivers, like linuxbridge and midonet.
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