<![CDATA[Netbox Sync 403 Forbidden (possibly false error)]]>I configured Netbox sync in an environment today, and after I did everything by the book, I got a 403 forbidden error. I figured this was odd since I've done this before without any issues and was really sure I followed it all identically.

Anyway, after some digging, I realized the sync did work it just threw the error anyway.

I am seeing the "Source IP x.x.x. is not permitted to authenticate" but the API key I have setup is indeed set to allow the XOA IP address.

Any idea what would cause this? It's odd to me to see a 403 response when the sync absolutely worked.

Nothing has changed since the initial sync so I can't so for sure if it'll keep syncing OK or not, but it definitely worked the first time and did show the 403 error.

]]>https://xcp-ng.org/forum/topic/11658/netbox-sync-403-forbidden-possibly-false-errorRSS for NodeThu, 14 May 2026 16:05:12 GMTTue, 09 Dec 2025 00:02:51 GMT60<![CDATA[Reply to Netbox Sync 403 Forbidden (possibly false error) on Tue, 09 Dec 2025 00:28:12 GMT]]>Figured it out after some digging, appears it's related to Netbox having ipv4 translated into ipv6 for that field, so to use IPv4 you have to have :ffff:x.x.x.x/128 as your IP address (the x's being your octet).

Once you do this it works without issue.

]]>https://xcp-ng.org/forum/post/100440https://xcp-ng.org/forum/post/100440Tue, 09 Dec 2025 00:28:12 GMT