Public bug reported:
NeutronDbPluginV2._validate_allocation_pools() currently does basic
checks to be sure you don't have an invalid subnet specified. However,
one thing missing is checking for a CIDR of /32. Such a subnet would
only have one valid IP in it, which would be consumed by the gateway,
thus making this network a dead network since no IPs are left over to be
allocated to VMs.
I propose a change to disallow start_ip == end_ip in
NeutronDbPluginV2._validate_allocation_pools() to cover the CIDR of /32
case.
** Affects: neutron
Importance: Undecided
Assignee: Paul Ward (wpward)
Status: New
** Changed in: neutron
Assignee: (unassigned) => Paul Ward (wpward)
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https://bugs.launchpad.net/bugs/1271311
Title:
Neutron should disallow a CIDR of /32
Status in OpenStack Neutron (virtual network service):
New
Bug description:
NeutronDbPluginV2._validate_allocation_pools() currently does basic
checks to be sure you don't have an invalid subnet specified.
However, one thing missing is checking for a CIDR of /32. Such a
subnet would only have one valid IP in it, which would be consumed by
the gateway, thus making this network a dead network since no IPs are
left over to be allocated to VMs.
I propose a change to disallow start_ip == end_ip in
NeutronDbPluginV2._validate_allocation_pools() to cover the CIDR of
/32 case.
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