How to force Mikrotik to forward Broadcast?

Question

openvpn

Hello. There is a Mikrotik RB951G-2Hnd router, an L2TP + ipsec server is configured, a client with Windows 7 or Android connects normally. But there is a problem with broadcast traffic. And it was revealed when trying to see the server behind the router as a game client.
Behind the router (local 192.168.1.1), there is a machine (192.168.1.2) on which the game server is set up. Remotely, via a modem (smartphone), I connect to the router via l2tp + ipsec, everything works. dhcp for vpn clients configured from one subnet. (192.168.1.100-.192.168.1.110). In general, the remote client and clients behind the router see each other, the Internet passes. But here broadcast messages do not get through. Before this rotator, the Evolve software was used, when entering the room (virtual), the local interface rises from the same subnet as that of the room participants, after which the server becomes visible to the remote client. The question is how to make the broadcaster walk?
The router has an external IP, connects to the Internet via the PPPOE protocol. Local network 192.168.1.1(router), 192.168.1.2 win machine with server.

0   ;;; defconf
     address=192.168.1.1/24 network=192.168.1.0 interface=ether1-master 
     actual-interface=bridge 

 1 D address=176.99.159.175/32 network=87.239.29.129 interface=Internet
     actual-interface=Internet 

 2 D address=192.168.1.1/32 network=192.168.1.110 interface=<l2tp> 
     actual-interface=<l2tp>

0 name="dhcp" ranges=192.168.1.10-192.168.1.15 

 1 name="VPN-Pool" ranges=192.168.1.100-192.168.1.110

name="L2TP-VPN" local-address=192.168.1.1 remote-address=VPN-Pool 
     bridge=bridge use-mpls=default use-compression=default 
     use-encryption=default only-one=default change-tcp-mss=default 
     use-upnp=default address-list="" on-up="" on-down=""

Also, the last thing I tried was to configure OpenVPN on Mikrotik in ethernet (tap) mode. Broadcast is still not working. I watched the packets, with the tunnel up through the Evolve software, then there you can immediately see the broadcasts from the game server. In general, I do not understand how.
And these are the settings that are currently used when picking openvpn.

2   name="OVPN" local-address=192.168.2.1 remote-address=OVPN-Pool bridge=bridge 
     use-mpls=default use-compression=default use-encryption=default 
     only-one=default change-tcp-mss=yes use-upnp=yes address-list="" on-up="" 
     on-down=""

Answer 1

From the L2TP manual:
BCP How-To

Answer 2

try BCP wiki.mikrotik.com/wiki/Manual:BCP_bridging_(PPP_tu...
this should help you

Answer 3

I used an EoIP tunnel for a similar task.