[admin@R1] > export compact
# jan/02/1970 02:37:57 by RouterOS 6.36.1
# software id = 8ZZT-HUV7
#
/interface bridge
    add name=loopback

/ip pool
    add name=fobi-dhcp ranges=172.20.10.10-172.20.10.50

/ip dhcp-server
add address-pool=fobi-dhcp disabled=no interface=ether5 \
    lease-time=30m name=testnetzEther5

/routing ospf area
    add area-id=23.23.23.23 name=fobi

/routing ospf instance
    set [ find default=yes ] router-id=255.255.255.10

/ip address
    add address=192.168.10.1/30 interface=ether4 network=192.168.10.0
    add address=192.168.20.1/30 interface=ether3 network=192.168.20.0
    add address=172.20.10.254/24 interface=ether5 network=172.20.10.0
    add address=255.255.255.10 interface=loopback network=255.255.255.10
    
/ip dhcp-server network
    add address=172.20.10.0/24 comment="netzwerk an ether5" \
    dns-server=10.16.1.1 gateway=172.20.10.254

/routing ospf network
    add area=fobi network=192.168.10.0/30
    add area=fobi network=192.168.20.0/30
    add area=fobi network=172.20.10.0/24

/system identity
    set name=R1