router 
Konfigurace router0
ipv6 unicast-routing interface GigabitEthernet0/0 no ip address duplex auto speed auto ipv6 address 2001:1CC1:DDDD:2::/64 ipv6 ospf 1 area 0.0.0.0 ipv6 router ospf 1 router-id 1.1.1.1 log-adjacency-changes
Konfigurace router1
ipv6 unicast-routing interface GigabitEthernet0/0 no ip address duplex auto speed auto ipv6 address 2001:1CC1:DDDD:2::1/64 ipv6 ospf 1 area 0.0.0.0 ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ipv6 address 2001:1CC1:DDDD:3::/64 ipv6 ospf 1 area 0.0.0.0 ipv6 router ospf 1 router-id 1.1.1.2 log-adjacency-changes
Konfigurace router 2
ipv6 unicast-routing ! no ipv6 cef ! ipv6 dhcp pool localipv6 domain-name sspu-opava.cz ! interface GigabitEthernet0/0 no ip address duplex auto speed auto ipv6 address 2001:1CC1:DDDD:3::1/64 ipv6 ospf 1 area 0.0.0.0 ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ipv6 address 2001:1CC1:DDDD:4::/64 ipv6 enable ipv6 ospf 1 area 0.0.0.0 ipv6 dhcp server localipv6 ipv6 router ospf 1 router-id 1.1.1.3 log-adjacency-changes