Banana pi BPI-R3 no CIFS module

Banana Pi Router design BPI-R3/R3 Mini(MT7986)
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After playing around a bit with the image, i find the network somewhat buggy in what relates to DNS. Is there any service missing or that should not be installed in your debian 11 image? I plan to use bpi as a network “slave” so to speak and not a router/gateway/switch.

Also, sometimes network configs using netplan seem to not be applied correctly. What is the method that you would use on this image to configure network interfaces?

EDIT: Can this problem be related to any virtual interfaces left on device. On boot log, i see this: image

Also another question… what is this interface lanbr0?

EDIT: I get the impression that DHCP client may not be working properly on wired interfaces. Wifi interfaces seem to be OK.

I also tested old way (using /etc/network/interfaces) and wired ifaces still seem to have trouble acquiring IP addresses

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If you use another config like netplan make sure you remove my network config in /etc/systemd/network

I create a lanbr0 (bridging all lan-ports into 1 interface to have 1 ip for it) with fixed ip-addr which is the opposite of dhcp :slight_smile: same for wan-port

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Ah makes sense. Actually already seen those files but were unsure if they were needed…

So, without such files, i should have a “default” debian 11 installation? Is there any dhcp client installed in your base image? I assume there is because wifi interfaces got IP without specifying

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Right, wlan0 and 1 also get fixed ip and dhcp-server from these files…also additional interfaces like vlans are created by those. Make sure you use debug-uart before disabling my network config

dhclient should be installed by default. I have not modified much only created a basic configuration like network,hostname rootpw and installed some basic packages like hostapd and network diagnostic tools

Systemd-networkd is default network-manager in debian, ifupdown (which uses /etc/network/interfaces) is deprecated and not installed by default. Netplan is ubuntu specific but also available in debian (imho not installed by default)

You can basicly disable systemd-networkd and keep the files and activating your netplan,but make sure you are not working over network-connection :wink:

My files contain example how to use dhcp on wan if needed,but remember your main-router needs to know your lan-subnet behind r3 (when not doing masquerading on wan) which needs to be different to its lan and routing needs to be activated.

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IMma bit confused right now. I thought that netplan was just an interface for networkd or NetworkManager (on ubuntu).

So if i disable systemd-networkd things should not work. Anyway, after deleting those files, looks like it got better. My only problem now seem to be DNS resolving

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Possible that netplan uses systemd and is only a frontend,have not used it much.

If you use dhcp,dns-server has to be set there too. Before i set dns over the systemd files. You try directly on r3 right?

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So everything got better when i installed NetworkManager and set it as netplan renderer. Im not sure now but i think i also purged systemd-resolved.

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Maybe systemd-resolved was not enabled? So settings from dhcp were not propagated in system