/30 is the minimum allowable mask, not /31. On 21 January 2014 22:04, Edgar Magana <emag...@plumgrid.com> wrote:
> Wouldn't be easier just to check if: > > cidr is 32? > > I believe it is a good idea to not allow /32 network but this is just my > opinion > > Edgar > > From: Paul Ward <wpw...@us.ibm.com> > Reply-To: OpenStack List <openstack-dev@lists.openstack.org> > Date: Tuesday, January 21, 2014 12:35 PM > To: OpenStack List <openstack-dev@lists.openstack.org> > Subject: [openstack-dev] [neutron] Neutron should disallow /32 CIDR > > Currently, NeutronDbPluginV2._validate_allocation_pools() does some very > basic checking to be sure the specified subnet is valid. One thing that's > missing is checking for a CIDR of /32. A subnet with one IP address in it > is unusable as the sole IP address will be allocated to the gateway, and > thus no IPs are left over to be allocated to VMs. > > The fix for this is simple. In > NeutronDbPluginV2._validate_allocation_pools(), we'd check for start_ip == > end_ip and raise an exception if that's true. > > I've opened lauchpad bug report 1271311 ( > https://bugs.launchpad.net/neutron/+bug/1271311) for this, but wanted to > start a discussion here to see if others find this enhancement to be a > valuable addition. > _______________________________________________ OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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