log file zebra.log ! hostname r4 ! ! debug zebra rib detailed ! debug zebra dplane detailed ! debug zebra kernel ! debug zebra nht ! interface lo ip address 4.4.4.4/32 ! interface r4-eth0 description to rt1 ip address 14.0.0.4/24 ! interface r4-eth1 description to rt5 ip address 45.0.0.4/24 ! ip forwarding ! line vty !