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AR1

【AR1】interface GigabitEthernet0/0/0

【AR1】ip address 172.16.1.1 255.255.255.0 

【AR1】interface GigabitEthernet0/0/1

【AR1】ip address 172.16.1.5 255.255.255.0

【AR1】ospf 1 router-id 1.1.1.1

【AR1-ospf-1】area 1

【AR1】network 172.16.1.0 0.0.0.255

AR2

【AR2】interface GigabitEthernet0/0/0

【AR2】ip address 172.16.1.2 255.255.255.0

【AR2】 ospf 1 router-id 2.2.2.2

【AR2-ospf-1】area 1

【AR2】network 172.16.1.0 0.0.0.255

AR3

 【AR3】interface GigabitEthernet0/0/0

 【AR3】 ip address 172.16.1.6 255.255.255.0

 【AR3-ospf-1】interface Serial4/0/0

 【AR3】ip address 172.16.0.1 255.255.255.0 #

 【AR3】ospf 1 router-id 3.3.3.3

 【AR3-ospf-1】area 0

 【AR3】network 172.16.0.0 0.0.0.255

 【AR3-ospf-1】area 1

 【AR3】network 172.16.1.0 0.0.0.255

AR4

【AR4】interface Serial4/0/0

【AR4】ip address 172.16.0.2 255.255.255.0

【AR4】interface Serial4/0/1

【AR4】ip address 172.16.2.1 255.255.255.0

【AR4】interface Serial3/0/0

【AR4】ip address 172.16.3.1 255.255.255.0

【AR4】interface GigabitEthernet0/0/0

【AR4】ip address 172.16.0.5 255.255.255.0 

【AR4】ospf 1 router-id 4.4.4.4

【AR4-ospf-1】area 0

【AR4】network 172.16.0.0 0.0.0.255

【AR4-ospf-1】area 2

【AR4】network 172.16.2.0 0.0.0.255

【AR4-ospf-1】area 3

【AR4】network 172.16.3.0 0.0.0.255

AR5

 【AR5】interface Serial4/0/0

【AR5】ip address 172.16.0.2 255.255.255.0

【AR5】interface Serial4/0/1

【AR5】ip address 172.16.2.1 255.255.255.0

【AR5-ospf-1】loopback 0

【AR5】ip address 100.1.1.1 255.255.255.255

AR6

【AR6】interface Serial4/0/0

【AR6】ip address 172.16.2.2 255.255.255.0

【AR6】interface GigabitEthernet0/0/0

【AR6】ip address 172.16.2.5 255.255.255.0 

【AR6】ospf 1 router-id 6.6.6.6

【AR6-ospf-1】area 2

【AR6】network 172.16.2.0 0.0.0.255

AR7

【AR7】 interface GigabitEthernet0/0/0

【AR7】ip address 172.16.0.6 255.255.255.0

【AR7】interface GigabitEthernet0/0/1

【AR7】ip address 172.16.3.2 255.255.255.0 

【AR7】ospf 1 router-id 7.7.7.7

【AR7-ospf-1】area 0

【AR7】network 172.16.0.0 0.0.0.255

【AR7-ospf-1】area 3

【AR7】network 172.16.3.0 0.0.0.255

AR8

【AR8】interface GigabitEthernet0/0/0

【AR8】ip address 172.16.3.3 255.255.255.0

【AR8】interface GigabitEthernet0/0/1

【AR8】ip address 172.16.4.1 255.255.255.0 

【AR8】ospf 1 router-id 8.8.8.8

【AR8-ospf-1】area 3

【AR8】network 172.16.3.0 0.0.0.255

【AR8-ospf-1】area 4

【AR8】network 172.16.4.0 0.0.0.255

AR9

 【AR9】interface GigabitEthernet0/0/0

【AR9】ip address 172.16.4.2 255.255.255.0

【AR9】interface GigabitEthernet0/0/1

【AR9】ip address 172.16.4.3 255.255.255.0 

【AR9】ospf 1 router-id 9.9.9.9

【AR9-ospf-1】area 4

【AR9】network 172.16.4.0 0.0.0.255

AR10

 【AR10】interface GigabitEthernet0/0/0

【AR10】ip address 172.16.4.4 255.255.255.0 

【AR10】ospf 1 router-id 10.10.10.10

【AR10-ospf-1】area 4

【AR10】network 172.16.4.0 0.0.0.255

AR11

【AR11】 interface GigabitEthernet0/0/0

【AR11】ip address 172.16.2.6 255.255.255.0

【AR11】interface GigabitEthernet0/0/1

【AR11】ip address 172.16.2.9 255.255.255.0

【AR11】 ospf 1 router-id 11.11.11.11

【AR11-ospf-1】area 2

【AR11】network 172.16.2.0 0.0.0.255

AR12

【AR12】 interface GigabitEthernet0/0/0

【AR12】ip address 172.16.2.10 255.255.255.0

【AR12】 rip 1

【AR12-rip-1】version 2

【AR12-rip-1】network 172.16.2.0

AR3

ospf 1- timer lsa-arrival 10 

AR7

ospf 1 timer lsa-arrival 10 

AR6

ospf 1 timer lsa-arrival 10