OSPF in 3.11 Still Dropping Default Routes

RouterOS General
1

Two of our RB1000s running 3.11 dropped their default routes during a switchover and never came back. Any ideas how to get the default route back?

supout sent to support.

2

Do you have bridge interface added to router?

Try to add loopback(bridge) interface to MT. Add adress to it, and than OSPF should work OK.

3

Yes, there is a bridge interface on the router. It’s an RB1000 with two public interfaces and a private interface that is a bridge.

4

Still not working. You can see the loopback interface here and the bridge interface that runs PPPoE is set as passive.

Here is what I have:

/interface bridge
add admin-mac=00:00:00:00:00:00 ageing-time=5m arp=enabled auto-mac=yes
comment=“” disabled=no forward-delay=15s max-message-age=20s mtu=1500
name=Loopback priority=0x8000 protocol-mode=none transmit-hold-count=6

/ip addr
add address=10.0.0.1/32 broadcast=10.0.0.1 comment=“” disabled=no interface=
Loopback network=10.0.0.1

/routing ospf interface
add authentication=none authentication-key=“” authentication-key-id=1 cost=9
dead-interval=8s disabled=no hello-interval=2s interface=ether2
network-type=broadcast passive=no priority=1 retransmit-interval=5s
transmit-delay=1s
add authentication=none authentication-key=“” authentication-key-id=1 cost=1
dead-interval=8s disabled=no hello-interval=2s interface=ether1
network-type=broadcast passive=no priority=5 retransmit-interval=5s
transmit-delay=1s
add authentication=none authentication-key=“” authentication-key-id=1 cost=10
dead-interval=8s disabled=no hello-interval=2s interface=bridge1
network-type=broadcast passive=yes priority=2 retransmit-interval=5s
transmit-delay=1s
add authentication=none authentication-key=“” authentication-key-id=1 cost=10
dead-interval=40s disabled=no hello-interval=10s interface=Loopback
network-type=broadcast passive=no priority=1 retransmit-interval=5s
transmit-delay=1s

5

OK
Try than to set “Router ID” to addres that you set for your bridge (loopback) interface (for you 10.0.0.1).

6

3.11’s default gateway fix is working perfectly for me (failovers between OSPF, DHCP, and BGP default routes).

Two questions: Why do you have all your interfaces manually defined? Why does you bridge interface have to be passive?

Also, your loopback should be passive.