ScaN Practice Skills Exam OSPF – PT (For both CCNA3 & CCNA4)
There are 3 types (Type A, Type B, Type C) of topology for ScaN Practice Skills Exam OSPF – PT. As you get exam online lab with Cisco Netacd, you will random to get one of three type. To make sure you can get 100%, Please check your topology clearly and find one of our lab below by Tab.
Good Luck!!!

ScaN Practice Skills Exam OSPF - PT Type A
Configuration on Route
Copy and past script for each router and switch name into Global Config mode:HQ
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:10::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/0/1 bandwidth 128 ip address 10.10.20.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:20::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/1/0 ip address 10.0.0.1 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:1::1/64 ! router ospf 10 router-id 10.20.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 10.10.20.0 0.0.0.3 area 0 default-information originate ! ipv6 router ospf 10 router-id 10.20.0.0 default-information originate log-adjacency-changes auto-cost reference-bandwidth 1000 ! ip route 0.0.0.0 0.0.0.0 Serial0/1/0 ! ipv6 route ::/0 Serial0/1/0 ! end
London
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.1 255.255.255.252 ipv6 address 2001:DB8:10::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.10.1 255.255.255.252 ipv6 address 2001:DB8:10A::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.10.5 255.255.255.252 ipv6 address 2001:DB8:10B::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 172.16.10.0 0.0.0.3 area 10 network 172.16.10.4 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 logging synchronous ! end
West
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.11.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:11::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.9 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 255 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:10C::1/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 255 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.2 255.255.255.252 ipv6 address 2001:DB8:10A::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.10.8 0.0.0.3 area 10 network 172.16.10.0 0.0.0.3 area 10 network 192.168.11.0 0.0.0.255 area 10 ! ipv6 router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 ! end
East
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.12.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:12::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.10 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 200 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10C::2/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 200 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.6 255.255.255.252 ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10B::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.12.0 0.0.0.255 area 10 network 172.16.10.4 0.0.0.3 area 10 network 172.16.10.8 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Dubai
! ipv6 unicast-routing ! no ipv6 cef ! interface Serial0/0/0 bandwidth 128 ip address 10.10.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20A::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.20.5 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20B::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.20.0 0.0.0.3 area 0 network 172.16.20.0 0.0.0.3 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! end
Central
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.21.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::201 link-local ipv6 address 2001:DB8:21::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.2 255.255.255.252 ipv6 address FE80::201 link-local ipv6 address 2001:DB8:20A::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.20.0 0.0.0.3 area 20 network 192.168.21.0 0.0.0.255 area 20 ! ipv6 router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Remote
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.22.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::202 link-local ipv6 address 2001:DB8:22::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.6 255.255.255.252 ipv6 address FE80::202 link-local ipv6 address 2001:DB8:20B::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.22.0 0.0.0.255 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end

ScaN Practice Skills Exam OSPF - PT Type B
Configuration on Route
Copy and past script for each router and switch name into Global Config mode:Administrator
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:10::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/0/1 bandwidth 128 ip address 10.10.20.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:20::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/1/0 ip address 10.0.0.1 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:1::1/64 ! router ospf 10 router-id 10.20.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 10.10.20.0 0.0.0.3 area 0 default-information originate ! ipv6 router ospf 10 router-id 10.20.0.0 default-information originate log-adjacency-changes auto-cost reference-bandwidth 1000 ! ip route 0.0.0.0 0.0.0.0 Serial0/1/0 ! ipv6 route ::/0 Serial0/1/0 ! end
Science
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.1 255.255.255.252 ipv6 address 2001:DB8:10::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.10.1 255.255.255.252 ipv6 address 2001:DB8:10A::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.10.5 255.255.255.252 ipv6 address 2001:DB8:10B::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 172.16.10.0 0.0.0.3 area 10 network 172.16.10.4 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 logging synchronous ! end
Bio
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.11.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:11::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.9 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 255 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:10C::1/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 255 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.2 255.255.255.252 ipv6 address 2001:DB8:10A::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.10.8 0.0.0.3 area 10 network 172.16.10.0 0.0.0.3 area 10 network 192.168.11.0 0.0.0.255 area 10 ! ipv6 router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 ! end
Physics
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.12.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:12::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.10 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 200 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10C::2/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 200 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.6 255.255.255.252 ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10B::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.12.0 0.0.0.255 area 10 network 172.16.10.4 0.0.0.3 area 10 network 172.16.10.8 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Technologhy
! ipv6 unicast-routing ! no ipv6 cef ! interface Serial0/0/0 bandwidth 128 ip address 10.10.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20A::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.20.5 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20B::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.20.0 0.0.0.3 area 0 network 172.16.20.0 0.0.0.3 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! end
CompSci
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.21.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::201 link-local ipv6 address 2001:DB8:21::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.2 255.255.255.252 ipv6 address FE80::201 link-local ipv6 address 2001:DB8:20A::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.20.0 0.0.0.3 area 20 network 192.168.21.0 0.0.0.255 area 20 ! ipv6 router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Electronics
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.22.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::202 link-local ipv6 address 2001:DB8:22::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.6 255.255.255.252 ipv6 address FE80::202 link-local ipv6 address 2001:DB8:20B::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.22.0 0.0.0.255 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end

ScaN Practice Skills Exam OSPF - PT Type C
Configuration on Route
Copy and past script for each router and switch name into Global Config mode:Town_Hall
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:10::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/0/1 bandwidth 128 ip address 10.10.20.2 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:20::2/64 ipv6 ospf 10 area 0 clock rate 128000 ! interface Serial0/1/0 ip address 10.0.0.1 255.255.255.252 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:1::1/64 ! router ospf 10 router-id 10.20.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 10.10.20.0 0.0.0.3 area 0 default-information originate ! ipv6 router ospf 10 router-id 10.20.0.0 default-information originate log-adjacency-changes auto-cost reference-bandwidth 1000 ! ip route 0.0.0.0 0.0.0.0 Serial0/1/0 ! ipv6 route ::/0 Serial0/1/0 ! end
Schools
! ipv6 unicast-routing ! interface Serial0/0/0 bandwidth 128 ip address 10.10.10.1 255.255.255.252 ipv6 address 2001:DB8:10::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.10.1 255.255.255.252 ipv6 address 2001:DB8:10A::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.10.5 255.255.255.252 ipv6 address 2001:DB8:10B::1/64 ipv6 ospf 10 area 10 clock rate 2000000 ! router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.10.0 0.0.0.3 area 0 network 172.16.10.0 0.0.0.3 area 10 network 172.16.10.4 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 logging synchronous ! end
Primary
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.11.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:11::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.9 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 255 duplex auto speed auto ipv6 address FE80::101 link-local ipv6 address 2001:DB8:10C::1/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 255 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.2 255.255.255.252 ipv6 address 2001:DB8:10A::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.10.8 0.0.0.3 area 10 network 172.16.10.0 0.0.0.3 area 10 network 192.168.11.0 0.0.0.255 area 10 ! ipv6 router ospf 10 router-id 10.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! line con 0 exec-timeout 1000 0 ! end
Secondary
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.12.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:12::1/64 ipv6 ospf 10 area 10 ! interface GigabitEthernet0/1 ip address 172.16.10.10 255.255.255.252 ip ospf hello-interval 5 ip ospf dead-interval 20 ip ospf priority 200 duplex auto speed auto ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10C::2/64 ipv6 ospf hello-interval 5 ipv6 ospf dead-interval 20 ipv6 ospf priority 200 ipv6 ospf 10 area 10 ! interface Serial0/0/0 ip address 172.16.10.6 255.255.255.252 ipv6 address FE80::102 link-local ipv6 address 2001:DB8:10B::2/64 ipv6 ospf 10 area 10 ! router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.12.0 0.0.0.255 area 10 network 172.16.10.4 0.0.0.3 area 10 network 172.16.10.8 0.0.0.3 area 10 ! ipv6 router ospf 10 router-id 10.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Safety
! ipv6 unicast-routing ! no ipv6 cef ! interface Serial0/0/0 bandwidth 128 ip address 10.10.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20::1/64 ipv6 ospf 10 area 0 ! interface Serial0/0/1 ip address 172.16.20.1 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20A::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! interface Serial0/1/0 ip address 172.16.20.5 255.255.255.252 ipv6 address FE80::20 link-local ipv6 address 2001:DB8:20B::1/64 ipv6 ospf 10 area 20 clock rate 2000000 ! router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 network 10.10.20.0 0.0.0.3 area 0 network 172.16.20.0 0.0.0.3 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.0.0.0 log-adjacency-changes auto-cost reference-bandwidth 1000 ! end
Police
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.21.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::201 link-local ipv6 address 2001:DB8:21::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.2 255.255.255.252 ipv6 address FE80::201 link-local ipv6 address 2001:DB8:20A::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 172.16.20.0 0.0.0.3 area 20 network 192.168.21.0 0.0.0.255 area 20 ! ipv6 router ospf 10 router-id 20.1.1.1 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end
Fire
! ipv6 unicast-routing ! interface GigabitEthernet0/0 ip address 192.168.22.1 255.255.255.0 duplex auto speed auto ipv6 address FE80::202 link-local ipv6 address 2001:DB8:22::1/64 ipv6 ospf 10 area 20 ! interface Serial0/0/0 ip address 172.16.20.6 255.255.255.252 ipv6 address FE80::202 link-local ipv6 address 2001:DB8:20B::2/64 ipv6 ospf 10 area 20 ! router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 network 192.168.22.0 0.0.0.255 area 20 network 172.16.20.4 0.0.0.3 area 20 ! ipv6 router ospf 10 router-id 20.2.2.2 log-adjacency-changes passive-interface GigabitEthernet0/0 auto-cost reference-bandwidth 1000 ! no cdp run ! end