Michael Takeuchi

1. MikroTik-1

/interface bridge
add name=lo
/routing bgp instance
set default as=100
/ip address
add address=12.12.12.1/30 interface=ether1
add address=1.1.1.1 interface=lo
/routing bgp network
add network=1.1.1.1/32
/routing bgp peer
add name=peer1 remote-address=12.12.12.2 remote-as=200
/system identity
set name=R1

2. MikroTik-2

/interface bridge
add name=loopback
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/routing bgp instance
set default as=200
/ip address
add address=12.12.12.2/30 interface=ether1 network=12.12.12.0
add address=2.2.2.2 interface=loopback network=2.2.2.2
/routing bgp network
add network=2.2.2.2/32
/routing bgp peer
add name=peer1 remote-address=12.12.12.1 remote-as=100
/system identity
set name=R2