#6934: Correct prefix utilization and available IP reporting to account for child IP ranges

This commit is contained in:
jeremystretch 2021-08-13 10:43:25 -04:00
parent 5365c866ff
commit 7727ec91f4
3 changed files with 10 additions and 6 deletions

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@ -15,6 +15,7 @@
* [#6846](https://github.com/netbox-community/netbox/issues/6846) - Form-driven REST API calls should use brief mode
* [#6871](https://github.com/netbox-community/netbox/issues/6871) - Support dynamic tag types in GraphQL API
* [#6894](https://github.com/netbox-community/netbox/issues/6894) - Fix available IP generation for prefix assigned to a VRF
* [#6934](https://github.com/netbox-community/netbox/issues/6934) - Correct prefix utilization and available IP reporting to account for child IP ranges
* [#6953](https://github.com/netbox-community/netbox/issues/6953) - Remove change log tab from non-applicable object views
---

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@ -435,7 +435,10 @@ class Prefix(PrimaryModel):
prefix = netaddr.IPSet(self.prefix)
child_ips = netaddr.IPSet([ip.address.ip for ip in self.get_child_ips()])
available_ips = prefix - child_ips
child_ranges = netaddr.IPSet()
for iprange in self.get_child_ranges():
child_ranges.add(iprange.range)
available_ips = prefix - child_ips - child_ranges
# IPv6, pool, or IPv4 /31-/32 sets are fully usable
if self.family == 6 or self.is_pool or (self.family == 4 and self.prefix.prefixlen >= 31):

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@ -142,17 +142,17 @@ class TestPrefix(TestCase):
IPAddress(address=IPNetwork('10.0.0.3/26')),
IPAddress(address=IPNetwork('10.0.0.5/26')),
IPAddress(address=IPNetwork('10.0.0.7/26')),
IPAddress(address=IPNetwork('10.0.0.9/26')),
IPAddress(address=IPNetwork('10.0.0.11/26')),
IPAddress(address=IPNetwork('10.0.0.13/26')),
))
IPRange.objects.create(
start_address=IPNetwork('10.0.0.9/26'),
end_address=IPNetwork('10.0.0.12/26')
)
missing_ips = IPSet([
'10.0.0.2/32',
'10.0.0.4/32',
'10.0.0.6/32',
'10.0.0.8/32',
'10.0.0.10/32',
'10.0.0.12/32',
'10.0.0.13/32',
'10.0.0.14/32',
])
available_ips = parent_prefix.get_available_ips()