Package: quagga Version: 1.1.1-3+deb9u2 I am using Debian GNU/Linux 9 (stretch) and quagga, works fine but after reboot quagga adding to tunnel ospf interface string "ip ospf network broadcast".
before reboot: interface Rs2Nord ip ospf authentication message-digest ip ospf message-digest-key 1 md5 <md5 key> ip ospf cost 10 ip ospf hello-interval 1 ip ospf dead-interval 3 after reboot: interface Rs2Nord ip ospf network broadcast ip ospf authentication message-digest ip ospf message-digest-key 1 md5 <md5 key> ip ospf cost 10 ip ospf hello-interval 1 ip ospf dead-interval 3 if i manually restart service via systemctl restart zebra ospfd config not have changes, but if i reboot server ip ospf network broadcast is back to each ospf interfaces Best Regards. Dmitry Shleg

