log file zebra.log ! hostname rt4 ! ! debug zebra kernel ! debug zebra packet ! debug zebra mpls ! interface lo ip address 10.0.255.4/32 ipv6 address 2001:db8::4/128 ! interface eth-rt2 ip address 10.0.255.4/32 ! interface eth-rt6 ip address 10.0.255.4/32 ! ip forwarding ! line vty !