Devices in VLAN outside container not reachable

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Hello,

I use docker on a NAS with OMV, which has the ip-address 192.168.178.57. I have different container running, e. g. traefik, nginx, nextcloud-aio… These container use standard bridge-networks.

I have a openwrt-router for managing VLANs: 192.168.178.64 → 192.168.1.1
One of the VLAN-Networks is 105 with IP 192.168.105.1/24.

I want to access devices in VLAN 105 from the containers, but this don’t work actual. For example

docker exec -it traefik ping 192.168.105.161
PING 192.168.105.161 (192.168.105.161): 56 data bytes

cannot reach the device. This worked until I installed updates on OMV about 2 weeks ago.

There are static routes in main-router:
192.168.1.0 → 192.168.178.64
192.168.105.0 → 192.168.178.64

From any computer in the main network 192.168.178.x the target ip 192.168.105.161 is reachable.

What can I do, to reach the VLAN from the docker containers?

Thanks in advance

Matthias