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2 changes: 1 addition & 1 deletion netbox/ipam/models/vlans.py
Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ def clean(self):
if self.vid_ranges and check_ranges_overlap(self.vid_ranges):
raise ValidationError({'vid_ranges': _("Ranges cannot overlap.")})
for vid_range in self.vid_ranges:
if vid_range.lower >= vid_range.upper:
if vid_range.lower > vid_range.upper:
raise ValidationError({
'vid_ranges': _(
"Maximum child VID must be greater than or equal to minimum child VID ({value})"
Expand Down
14 changes: 14 additions & 0 deletions netbox/ipam/tests/test_models.py
Original file line number Diff line number Diff line change
Expand Up @@ -543,3 +543,17 @@ def test_vid_validation(self):

vlan = VLAN(vid=109, name='VLAN 109', group=vlangroup)
vlan.full_clean()

def test_overlapping_vlan(self):
vlangroup = VLANGroup(
name='VLAN Group 1',
slug='vlan-group-1',
vid_ranges=string_to_ranges('2-4,3-5'),
)
with self.assertRaises(ValidationError):
vlangroup.full_clean()

# make sure single vlan range works
vlangroup.vid_ranges = string_to_ranges('2-2')
vlangroup.full_clean()
vlangroup.save()