Reached illegal state! IPV4 address change from defined to undefined

[n0rt0nthec4t]

Current Situation

Since updating code based to HAP-Nodejs 1.10 and subsequently having ciao updated to 1.3.0, been seeing these errors below in my accessory logs

Thoughts on why now occurring?

AssertionError [ERR_ASSERTION]: Reached illegal state! IPV4 address change from defined to undefined!
    at MDNSServer.handleUpdatedNetworkInterfaces (/opt/Nest_accfactory/node_modules/@homebridge/ciao/src/MDNSServer.ts:695:18)
    at NetworkManager.emit (node:events:531:35)
    at NetworkManager.checkForNewInterfaces (/opt/Nest_accfactory/node_modules/@homebridge/ciao/src/NetworkManager.ts:345:12)

Logs

AssertionError [ERR_ASSERTION]: Reached illegal state! IPV4 address change from defined to undefined!
    at MDNSServer.handleUpdatedNetworkInterfaces (/opt/Nest_accfactory/node_modules/@homebridge/ciao/src/MDNSServer.ts:695:18)
    at NetworkManager.emit (node:events:531:35)
    at NetworkManager.checkForNewInterfaces (/opt/Nest_accfactory/node_modules/@homebridge/ciao/src/NetworkManager.ts:345:12)

Configuration

.

Environment

• OS: Docker NodeJS image, 20-Alpine3.20
• Software:
• Node: 20.15.1
• npm: 108.2

Process Supervisor

other (Explain in Additional Context)

Additional Context

No response

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[n0rt0nthec4t]

This is not stale.. Still occuring

Aug 28 09:36:00 garagedoor node[11165]: AssertionError [ERR_ASSERTION]: Reached illegal state! IPV4 address change from defined to undefined!
Aug 28 09:36:00 garagedoor node[11165]: at MDNSServer.handleUpdatedNetworkInterfaces (/home/pi/node_modules/@homebridge/ciao/src/MDNSServer.ts:695:18)
Aug 28 09:36:00 garagedoor node[11165]: at NetworkManager.emit (node:events:526:35)
Aug 28 09:36:00 garagedoor node[11165]: at NetworkManager.checkForNewInterfaces (/home/pi/node_modules/@homebridge/ciao/src/NetworkManager.ts:345:12)
Aug 28 09:36:00 garagedoor node[11165]: at processTicksAndRejections (node:internal/process/task_queues:95:5)

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[hjdhjd]

If you can recreate this, at will, turn on debugging please. There should be network change messages around it like Detected network changes that will provide a bit more context. I’ve struggled to recreate this one at will, unfortunately, and without that…I need data. 😄

Add the environment variable:

DEBUG=ciao:NetworkManager

And let’s see what comes up in/around the assertion error that’s generated and let’s get this one tracked down for everyone’s sake. 😄

[n0rt0nthec4t]

@hjdhjd

Oct 28 18:17:21 irrigation node[19804]: 2024-10-28T07:17:21.037Z ciao:NetworkManager Detected network changes: added: [], removed: [], changes: [{ name: wlan0 , fd13:730d:c0d0:c945:509b:4bd2:3713:6503 -> undefined }]!
Oct 28 18:18:36 irrigation node[19804]: 2024-10-28T07:18:36.421Z ciao:NetworkManager Detected network changes: added: [], removed: [], changes: [{ name: wlan0 , undefined -> fd13:730d:c0d0:c945:509b:4bd2:3713:6503 }]!
Oct 29 10:02:04 irrigation node[19804]: 2024-10-28T23:02:04.385Z ciao:NetworkManager Detected network changes: added: [], removed: [], changes: [{ name: wlan0 , fd13:730d:c0d0:c945:509b:4bd2:3713:6503 -> undefined }]!
Oct 29 10:04:50 irrigation node[19804]: 2024-10-28T23:04:50.176Z ciao:NetworkManager Detected network changes: added: [], removed: [], changes: [{ name: wlan0 , undefined -> fd13:730d:c0d0:c945:509b:4bd2:3713:6503 }]!
Oct 29 10:49:33 irrigation node[19804]: 2024-10-28T23:49:33.131Z ciao:NetworkManager Detected network changes: added: [], removed: [], changes: [{ name: wlan0 , 10.0.1.136 -> undefined , fd13:730d:c0d0:c945:509b:4bd2:3713:6503 -> undefined }]!
Oct 29 10:49:33 irrigation node[19804]: AssertionError [ERR_ASSERTION]: Reached illegal state! IPV4 address change from defined to undefined!
Oct 29 10:49:33 irrigation node[19804]: at MDNSServer.handleUpdatedNetworkInterfaces (/home/pi/node_modules/@homebridge/ciao/src/MDNSServer.ts:695:18)
Oct 29 10:49:33 irrigation node[19804]: at NetworkManager.emit (node:events:526:35)
Oct 29 10:49:33 irrigation node[19804]: at NetworkManager.checkForNewInterfaces (/home/pi/node_modules/@homebridge/ciao/src/NetworkManager.ts:345:12)
Oct 29 10:49:33 irrigation node[19804]: at processTicksAndRejections (node:internal/process/task_queues:95:5)

[hjdhjd]

Thanks, @n0rt0nthec4t I'll take a closer look this week. Offhand it looks like the WiFi interface is losing it's connectivity, and therefore it's IPs...and then reacquiring them a few moments to minutes later.

Appreciate your help capturing the data to this point. Will update with more as I track this down further.

[n0rt0nthec4t]

Some other observations, this only starting occurring in like a recent version of CIAO. maybe 1.2 or later? Doesnt seem to happen with bonjour or AVAHI, but thats just conjecture

[hjdhjd]

I’m aware - don’t need more data at this time. Will get back to you when more info or testing is needed. Thanks. 😄

[mishakim]

I'm having the same error on a new Raspberry Pi 5, standard Homebridge image with a setup restored from a long-term install on a Mac Mini that finally failed. It intermittently loses connectivity, and seems to also restart Homebridge on its own at least some of the times that the network resets.

Reviewing the logs after the most recent night of frequent restarts, one of the restarts was preceded by the same error as in the original report, which came after repeated lines of:
Warning: no IPv4 address available on eth0

I get those no IPv4 address errors a lot - not always accompanied by restarts.
I think the network loss is unrelated to Homebridge - I also lose ssh and pi-hole, then everything comes back a bit later. But home bridge doesn't seem to like it. So I'm trying to fix that problem, but thought I should chime in on this thread to report that it's not limited to n0rt0nthec4t's config.

Environment
OS: Debian Bookworm (12)
Node: 20.18.0
npm: 10.8.2
Raspberry Pi 5, 4GB, no accessories except the fan connected, also running pi-hole and wireguard, nothing else