Editing IP inside a populated range fails with error: Cannot create IP address inside range #817

New Issue

MrUnknownDE · 2026-04-05T17:54:56+02:00

MrUnknownDE commented

2026-04-05 17:54:56 +02:00

Originally created by @julianstolp on 11/25/2025

NetBox Edition

NetBox Community

NetBox Version

v4.4.6

Python Version

3.12

Steps to Reproduce

Create one ip, ie 10.10.10.10/24
Create ip range, ie 10.10.10.0-100/24
Mark ip range as populated
Try to edit existing ip 10.10.10.10/24 ie. add description
Hit save button
Error is displayed Cannot create IP address 10.10.10.10/24 inside range 10.10.10.0-100/24.

Expected Behavior

As stated in https://github.com/netbox-community/netbox/pull/19064#issuecomment-2786802457 this is somewhat expected behaviour. But a hint when marking as populated would be nice (like Prevent the creation and editing of IP addresses within this range) or the ability to edit the ip inside the range, because its edit not create.

Observed Behavior

Error is displayed Cannot create IP address 10.10.10.10/24 inside range 10.10.10.0-100/24.

*Originally created by @julianstolp on 11/25/2025* ### NetBox Edition NetBox Community ### NetBox Version v4.4.6 ### Python Version 3.12 ### Steps to Reproduce 1. Create one ip, ie 10.10.10.10/24 2. Create ip range, ie 10.10.10.0-100/24 3. Mark ip range as populated 4. Try to edit existing ip 10.10.10.10/24 ie. add description 5. Hit save button 6. Error is displayed _Cannot create IP address 10.10.10.10/24 inside range 10.10.10.0-100/24._ ### Expected Behavior As stated in https://github.com/netbox-community/netbox/pull/19064#issuecomment-2786802457 this is somewhat expected behaviour. But a hint when marking as populated would be nice (like _Prevent the creation **and editing** of IP addresses within this range_) or the ability to edit the ip inside the range, because its edit not create. ### Observed Behavior Error is displayed _Cannot create IP address 10.10.10.10/24 inside range 10.10.10.0-100/24._

MrUnknownDE closed this issue

2026-04-05 17:54:56 +02:00

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Branches Tags

main

21455-sql-indexes-audit

21357-register-model-actions

feature

20924-plugin-ui-components

21766-improve-test-coverage-for-sortable-table-columns

21157-export-template-public-models

21025-pre-render-config-contexts

21364-swagger

feature-ip-prefix-link

20911-dropdown-3

fix_module_substitution

21160-filterset

20911-dropdown-2

20044-elevation-stuck-lightmode

7604-filter-modifiers-v3

20660-script-load

19724-graphql

14884-script

19720-macaddress-interface-generic-relation

fix-19669-api-image-download

7604-filter-modifiers

19275-fixes-interface-bulk-edit

fix-17794-get_field_value_return_list

11507-show-aggregate-and-rir-on-api

9583-add_column_specific_search_field_to_tables

No Label netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox 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netbox severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium severity: medium status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted 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Reference: github/netbox#817