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English Forums => 26.1, 26,4 Series => Topic started by: nero355 on March 27, 2026, 06:08:48 PM

Title: [SOLVED] - [KEA DHCP Error] Interface usbus0 has no index
Post by: nero355 on March 27, 2026, 06:08:48 PM
I have found a weird KEA DHCP4 Error related to USB for whatever reason :

Quote ERROR [kea-dhcp4.dhcp4.0x47d7d405c008] DHCP4_INIT_FAIL failed to initialize Kea server:
configuration error using file '/usr/local/etc/kea/kea-dhcp4.conf':
Error during command processing: Interface usbus0 has no index


ERROR [kea-dhcp4.dhcp4.0x47d7d405c008] DHCP4_CONFIG_LOAD_FAIL configuration error using file:
/usr/local/etc/kea/kea-dhcp4.conf, reason:
Error during command processing: Interface usbus0 has no index

I feel like this device should be excluded somehow but since the GUI does not show anything I am not messing around with it via SSH for now.

The only USB devices this install has every seen are :
- USB Stick for the installation.
- Keyboard used during that installation.
Title: Re: [KEA DHCP Error] Interface usbus0 has no index
Post by: franco on March 28, 2026, 07:53:45 AM
Huh, is "usbus0" even in /usr/local/etc/kea/kea-dhcp4.conf?


Cheers,
Franco
Title: Re: [KEA DHCP Error] Interface usbus0 has no index
Post by: nero355 on March 29, 2026, 10:09:31 PM
Quote from: franco on March 28, 2026, 07:53:45 AMHuh, is "usbus0" even in /usr/local/etc/kea/kea-dhcp4.conf?
Nope...?!

In fact it's not even an Interface :
Quote# dmesg | grep usbus0
[1] usbus0 on xhci0
[1] usbus0: 5.0Gbps Super Speed USB v3.0
[1] ugen0.1: <Intel XHCI root HUB> at usbus0
[1] uhub0 on usbus0
[1] uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[1] usbus0 on xhci0
[1] usbus0: 5.0Gbps Super Speed USB v3.0
[1] ugen0.1: <Intel XHCI root HUB> at usbus0
[1] uhub0 on usbus0
[1] uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[1] usbus0 on xhci0
[1] usbus0: 5.0Gbps Super Speed USB v3.0
[1] ugen0.1: <Intel XHCI root HUB> at usbus0
[1]  on usbus0
[1] uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[1] usbus0 on xhci0
[1] usbus0: 5.0Gbps Super Speed USB v3.0
[1] ugen0.1: <Intel XHCI root HUB> at usbus0
[1] uhub0 on usbus0
[1] uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[1] usbus0 on xhci0
[1] usbus0: 5.0Gbps Super Speed USB v3.0
[1] ugen0.1: <Intel XHCI root HUB> at usbus0
[1] uhub0 on usbus0
[1] uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
But for some reason I see now multiple daemons think it is ?!
Title: Re: [KEA DHCP Error] Interface usbus0 has no index
Post by: franco on April 08, 2026, 12:59:17 PM
There was some fuzz with Kea lately about interfaces which led to https://github.com/opnsense/core/issues/10072

Not sure if related but worth a peek.


Cheers,
Franco
Title: Re: [KEA DHCP Error] Interface usbus0 has no index
Post by: nero355 on April 08, 2026, 02:58:03 PM
Quote from: franco on April 08, 2026, 12:59:17 PMThere was some fuzz with Kea lately about interfaces which led to https://github.com/opnsense/core/issues/10072

Not sure if related but worth a peek.
I think this is a different issue since it's not just KEA complaining about this...

Maybe wait for the 26.1.6 Release and check again after a reboot ?

It's nothing that breaks functionality or stability, but it's weird that multiple Services complain about something they shouldn't and have nothing to do with ?!
Title: Re: [KEA DHCP Error] Interface usbus0 has no index
Post by: nero355 on April 14, 2026, 08:17:33 PM
Quote from: nero355 on April 08, 2026, 02:58:03 PMMaybe wait for the 26.1.6 Release and check again after a reboot ?
Just did the above and the error seems to be gone!

I consider this fixed now :)
Title: Re: [SOLVED] - [KEA DHCP Error] Interface usbus0 has no index
Post by: franco on April 15, 2026, 07:30:38 AM
Hmm, errors that go away for no reason can come back for no reason as well. I'd still be cautious.  :/


Cheers,
Franco
Title: Re: [SOLVED] - [KEA DHCP Error] Interface usbus0 has no index
Post by: nero355 on April 15, 2026, 04:09:41 PM
Quote from: franco on April 15, 2026, 07:30:38 AMHmm, errors that go away for no reason can come back for no reason as well. I'd still be cautious. :/
Don't worry : I will keep an eye on this in the future ;)