How to set up network bridge on Raspberry Pi?

Question

linux

Good afternoon. I can't set up a network bridge between LAN and WLAN adapters on Raspberry (Ubuntu Mate). It is necessary that the IP camera connected to the raspberry be visible on the router network, for example, from a PC (see diagram).
At the moment, the interfaces configuration will look like this. way

auto wlan0
iface wlan0 inet manual

auto eth0
iface eth0 inet manual


auto br0
iface br0 inet dhcp
bridge_ports wlan0 eth0

But at the same time, all interfaces disappeared from NetworkManager. In ifconfig, I see all 4 interfaces (wlan0, eth0, lo, br0), but they disappear from the manager and do not connect to anything. I generally noticed that if you try to configure any interface, the same eth0, assign it a static address, for example (we don’t take the bridge into account at all), then it will disappear from the connection manager and will not be connected after the system starts.
brctl show output:

bridge name   bridge id             STP enabled     interfaces
br0           8000.b827ebb42536     no              eth0

In general, completely confused.

Answer 1

First, you need to choose: configure via Network Manager or via configuration files.