06-11-2023 04:20 PM
Hi,
06-12-2023 06:39 AM
Hello @qd73
When it's in bridge mode, it will retransmit all broadcast traffic from one side to the other, and this may include IPv6 autoconfiguration packets being sent by your "outer" router. Are your devices getting routable IPv6 addresses (something that doesn't start with "fe80::")? Basically, as a bridge, it won't be participating in IPv6 autoconfiguration of attached devices. If it were in router/NAT mode, it would be, and disabling IPv6 would stop it from doing that. That's my read on the situation, at least.
06-12-2023 06:43 AM
Hi @MichaelP .
In fact I can see RA packets coming from the WiFi router itself. If I configure my iptable firewall to block incoming ipv6 packets from the router, it's working fine.
The announced prefix is
inet6 fde7:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx/64 scope global deprecated dynamic mngtmpaddr noprefixroute
valid_lft 1610sec preferred_lft 0sec
And if I don't block packets I get a lot of this in the syslog :
Jun 11 14:57:37 computer avahi-daemon[3439554]: Registering new address record for fde7:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx on enp0s25.*.
Jun 11 14:57:38 computer avahi-daemon[3439554]: Withdrawing address record for fde7:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx on enp0s25.
Which cause my browser to display regularly ERR_NETWORK_CHANGED
06-12-2023 08:37 AM - edited 06-12-2023 08:37 AM
The "fde7" prefix is part of the IPv6 "Unique Local Address (ULA)" space (fc00::/7). These are akin to IPv4 addresses like 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.
Are you sure this is coming from the bridge-mode Google WiFi unit and not from the your actual router?
06-12-2023 09:17 AM
I am pretty sure. When I shut the port connected to the Google Wifi, the prefix is not here anymore and I don't have disconnection anymore.
06-12-2023 01:49 PM
Strange. So, just to make sure I understand your current setup, you have a non-Google router that feeds an Ethernet switch. The switch then connects computers as well as one Google WiFi unit that's in bridge mode. When the Google WiFi unit is connected, you get fde7 IPv6 advertisements. Do I have that right?
06-12-2023 04:42 PM
Yes, @MichaelP , exactly.
I have OpenWrt that acts as gateway on the same VLAN as Google WiFi and my laptop, all connect on a switch.
06-13-2023 06:35 AM
Ok, thanks. I'm going to "escalate" this in hopes it can get to the right place. In the mean time, could you also report it through the Google Home app using the "Feedback" feature? That will collect a bit of log data that may be useful. One last thing, though I don't think it will matter: which Ethernet port are you connecting to on the bridge-mode Google WiFi unit? Globe / WAN or <-> / LAN?
06-13-2023 07:06 AM
@MichaelP Sure I will do that. I connect the unit using the WAN port.
I also captured some RA broadcasted by the Google Wifi if needed.
06-17-2023 02:54 PM
Hello everyone,
@MichaelP, I appreciate your assistance here.
@qd73, thanks for bringing this up. We'd appreciate it if you can send feedback about this issue that you're getting using the Google Home app so our product team will be able to review the crash log reports. In that way, they'll be able to take a closer look into this. Check out this link for more information.
Let us know if you have additional questions or concerns; otherwise, I'll close the thread after 24 hours.
Best regards,
Lovely
06-17-2023 02:55 PM
Hi @LovelyM ,
The issue is still there. I already sent feedback on the home app.
08-10-2023 06:37 PM
Hey qd73,
Sorry for the late revert. We don't have any news to share on when a fix for this will be available, so please keep an eye out for updates.
Thanks,
Lovely
08-14-2023 03:55 PM
Hello qd73,
I know it has been a while, but I want to ensure that everything is covered on your end. If you have other questions or concerns, feel free to tell me, as I would love to help.
Sincerely,
Lovely
08-15-2023 02:27 AM
Hi,
My device has been replaced and now it seems to perform correctly!
08-15-2023 08:35 AM
Hi there,
We’re glad to hear that this has been sorted out! Let us know if there’s anything else we can help you with. We’ll be more than happy to assist you.
Cheers,
Alex