Area 0 (Backbone):
- Authentication with clear text + override per interface;
- Default information originate.
Area 1 (Regular area):
- Authentication md5;
- Route summarization (LSA3 filtering on ABR);
- Route filtering (LSA3 filtering on ABR);
- Virtual Link to area 10 with md5 authentication;
- RIP redistribution with summarization on ASBR.
Area 2 (Regular area):
- Route filtering (LSA3 filtering on ABR).
Area 4 (Totally stub):
- Adjusted cost for default route.
Area 5 (NSSA):
- Added default information originate.
Area 10 (Regular area without direct link to the backbone):
- Virtual link to area 0.
Other features are on routers and interfaces in configurations below with comments. Not relevant commands are omitted.
R1:
interface Loopback0 #By default OSPF chooses manually specified RID. If not specified - the highest Loopback IP, if none exists - the highest IP among active interfaces.
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 10.0.2.1 255.255.255.0
ip ospf network point-to-point #By default OSPF advertises Loopback prefixes as /32. With "network point-to-point" it will advertise full prefix.
!
interface FastEthernet1/0
description To R2
no switchport
ip address 10.0.0.1 255.255.255.252
ip ospf authentication message-digest #Below in the OSPF process configuration specified the clear text authentication in area 0, but per-interface setting have higher priority.
ip ospf message-digest-key 1 md5 ospfauthoverride #Key numbers must be the same on both ends of the link.
ip ospf hello-interval 5 #For two routers to become neighbors Hello-intervals have to be the same on both end of the link. If no Dead timer specified, by default it equals (Hello x 4).
!
interface FastEthernet1/1
description To R3
no switchport
ip address 10.0.0.5 255.255.255.252
ip ospf message-digest-key 1 md5 ospfmd5auth #Below in the OSPF process configuration specified the md5 authentication in area 1, so you don't need to repeat this command per interface basis.
ip ospf network point-to-point #This command prevent DR/BDR election on multiaccess links, thus decreasing number of LSA2 in the OSPF database.
ip ospf cost 30 #You can manually specify OSPF link cost or adjust bandwidth of the interface. The first method is more reliable and clear.
ip ospf dead-interval 20 #When you manually change the dead interval it doesn't affect the hello interval on the interface. But it requires the same changes on the other end of the link.
!
interface FastEthernet1/2
description To SW area 0
no switchport
ip address 10.0.1.1 255.255.255.0
ip mtu 1480 #Different MTU may not prevent neighborship but it will affect normal DBD exchange process.
ip ospf authentication-key ospfauth #Clear text authentication configuration.
ip ospf 1 area 0.0.0.0 #It is a new-style configuration. You may configure it per OSPF process with the "network" statement. Additionally, it is the same as "ip ospf 1 area 0" command.
!
router ospf 1
router-id 1.1.1.1 #This router has a Loopback interface with higher IP.
log-adjacency-changes
area 0 authentication #Clear text authentication through area 0.
area 1 authentication message-digest #MD5 authentication through area 1.
area 1 range 172.16.2.0 255.255.254.0 #This command reduces the number of LSA3 to be advertised to other areas from area 1. In this case 1 LSA3 instead of 2.
area 1 filter-list prefix deny10.0.0.0/30 in #This command filters LSA3 with this prefix to be propagated into area 1. Also notice that R3 has another link into area 0, so you need to filter this prefix on the other ABR (R2) as well.
area 1 virtual-link 10.10.10.10 authentication message-digest #Establishing Virtual link to router with RID 10.10.10.10 in area 10 using md5 authentication.
area 1 virtual-link 10.10.10.10 message-digest-key 1 md5 vlink #Notice that the first statement is "area 1", which means that this area 1 is transit area for configured virtual link.
passive-interface default #The same as with EIGRP - define all interfaces as passive and manually specify non-passive interfaces.
no passive-interface FastEthernet1/0
no passive-interface FastEthernet1/1
no passive-interface FastEthernet1/2
network 10.0.0.1 0.0.0.0 area 0 #As with EIGRP you specify not the whole prefix, but the interface on which OSPF will work.
network 10.0.0.5 0.0.0.0 area 1
network 10.0.2.0 0.0.0.255 area 0
default-information originate #This makes R1 an ASBR because it uses LSA5 to advertise this default route.
!
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0 #If this interface fails, OSPF will no longer advertise default route. To prevent it use "always" keyword in command above.
!
ip prefix-list deny10.0.0.0/30 seq 5 deny 10.0.0.0/30
ip prefix-list deny10.0.0.0/30 seq 10 permit 0.0.0.0/0 le 32
R2:
interface Loopback0 #Router ID is not specified under the OSPF process configuration, so OSPF will pick this IP as RID.
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet1/0
description To R1
no switchport
ip address 10.0.0.2 255.255.255.252
ip ospf authentication message-digest #Overriding clear text authentification per area.
ip ospf message-digest-key 1 md5 ospfauthoverride
ip ospf hello-interval 5
!
interface FastEthernet1/1
description To R4
no switchport
ip address 10.0.0.9 255.255.255.252
ip ospf network non-broadcast #On Ethernet interfaces you don't need to do that, because it will prevent dynamic neighbor discovery with multicast Hello messages. So you wull need to manually specify neighbors under OSPF process configuration (see below) to form neighborship.
ip ospf priority 100 #Although previous command disabled dynamic neighbor discovery, it didn't prevent DR/BDR election. A router with highest priority will become DR.
!
interface FastEthernet1/2
description To SW area 0
no switchport
ip address 10.0.1.2 255.255.255.0
ip mtu 1480
ip ospf authentication-key ospfauth
ip ospf 2 area 0
!
interface FastEthernet1/3
description To R3
no switchport
ip address 10.0.0.13 255.255.255.252
ip ospf message-digest-key 1 md5 cisco #Keys don't have to be the same across the area, but have to match on both ends of the link.
!
router ospf 2 #In opposite to EIGRP OSPF process number has only local significance and don't have to be the same through the OSPF domain.
log-adjacency-changes
area 0 authentication
area 0 filter-list prefix deny10.0.0.0/30 out #This is the continuation of filtering LSA3 on ABR but this time the "out" keyword specified, which means that R2 will not advertise this prefix out of area 0, therefore R3 will not receive this prefix.
area 1 authentication message-digest
area 1 range 172.16.2.0 255.255.254.0 not-advertise #This summarization ABR won't be propagated to other routers. But will be propagated through R1, which means that R2 will receive this LSA3 from R1 and will propagate it to other areas.
passive-interface default
no passive-interface FastEthernet1/0
no passive-interface FastEthernet1/1
no passive-interface FastEthernet1/2
no passive-interface FastEthernet1/3
network 10.0.0.0 0.0.0.3 area 0
network 10.0.0.8 0.0.0.3 area 2
network 10.0.0.12 0.0.0.3 area 1
neighbor 10.0.0.10 #Interface to R4 was defined as nonbroadcast, so you have to specify IP address of the neighbor.
!
ip prefix-list deny10.0.0.0/30 seq 5 deny 10.0.0.0/30
ip prefix-list deny10.0.0.0/30 seq 10 permit 0.0.0.0/0 le 32
R3:
interface FastEthernet1/1
description To R1
no switchport
ip address 10.0.0.6 255.255.255.252
ip ospf message-digest-key 1 md5 ospfmd5auth
ip ospf network point-to-point #OSPF network type must be the same on both ends of the link.
ip ospf cost 30 #It is a good practice to set the same cost values on both ends of the link.
ip ospf dead-interval 20
!
interface FastEthernet1/2
description To R7
no switchport
ip address 10.0.0.17 255.255.255.252
ip ospf message-digest-key 1 md5 ospfa1
!
interface FastEthernet1/3
description To R2
no switchport
ip address 10.0.0.14 255.255.255.252
ip ospf message-digest-key 1 md5 cisco
!
interface FastEthernet1/10
description To 172.16.1.0/24
no switchport
ip address 172.16.1.1 255.255.255.0
!
router ospf 3
router-id 3.3.3.3
log-adjacency-changes
auto-cost reference-bandwidth 1000 #It is a very bad idea to set reference bandwidth only on one router in the OSPF domain, because it will lead to different metric calculations. Default value = 100.000.000 which is obsolete.
max-lsa 10000 #This command specifies total amount of learned (not generated) LSAs. If this number will be exceeded several times router will bring down all neighborships and start OSPF process again. Usefull for less powerfull devices.
area 1 authentication message-digest
passive-interface default
no passive-interface FastEthernet1/1
no passive-interface FastEthernet1/2
no passive-interface FastEthernet1/3
network 10.0.0.6 0.0.0.0 area 1
network 10.0.0.12 0.0.0.3 area 1
network 10.0.0.16 0.0.0.3 area 1
network 172.16.1.0 0.0.0.255 area 1
distribute-list prefix deny172.16.2.0/24 in #This command won't prevent receiving and propagating LSA by router, but router will not install specified prefixes in its routing table. You also can use destribute list with named/numbered ACLs and route maps.
!
ip prefix-list deny172.16.2.0/24 seq 5 deny 172.16.2.0/24
ip prefix-list deny172.16.2.0/24 seq 10 permit 0.0.0.0/0 le 32
R4:
interface FastEthernet1/1
description To R3
no switchport
ip address 10.0.0.10 255.255.255.252
ip ospf network non-broadcast
ip ospf 4 area 2
!
router ospf 4
router-id 4.4.4.4
log-adjacency-changes
passive-interface default
no passive-interface FastEthernet1/1
neighbor 10.0.0.9 #You need to manually specify neighbors on both ends of the nonbroadcast link. Besides, on R2 set priority 100 (default - 1) which leads to that R2 becomes DR and R4 - BDR.
R5:
interface FastEthernet1/0
description To R8
no switchport
ip address 10.0.0.21 255.255.255.252
!
interface FastEthernet1/1
description To R12
no switchport
ip address 10.0.0.37 255.255.255.252
!
interface FastEthernet1/2
description To SW area 0
no switchport
ip address 10.0.1.5 255.255.255.0
ip mtu 1480
ip ospf authentication-key ospfauth
!
router ospf 5
router-id 5.5.5.5
log-adjacency-changes
area 0 authentication
area 3 stub #Configuration of regular stub area, which will not receive LSA4, LSA5, LSA7. All the routers inside this stub area should be configured with the same command or they won't form adjacencies.
area 6 nssa no-summary #Configuration of Totally NSSA, which will not receive LSA3, LSA4, LSA5. Router inside the area should be configured with "area 6 nssa" command, becasue only ABR filters LSA3 (Summary LSA). Notice that for Totally NSSA you don't need to specify "default-information-originate" keyword.
network 10.0.0.20 0.0.0.3 area 3
network 10.0.0.36 0.0.0.3 area 6
network 10.0.1.5 0.0.0.0 area 0
R6:
interface Loopback0 #There is a several loopbacks for RIP redistribution.
ip address 11.0.0.1 255.255.255.0
!
interface Loopback1
ip address 11.0.1.1 255.255.255.0
!
interface Loopback2
ip address 11.0.2.1 255.255.255.0
!
interface Loopback3
ip address 11.0.3.1 255.255.255.0
!
interface FastEthernet1/0
description To R9
no switchport
ip address 10.0.0.25 255.255.255.252
!
interface FastEthernet1/1
description To R11
no switchport
ip address 10.0.0.33 255.255.255.252
!
interface FastEthernet1/2
description To SW area 0
no switchport
ip address 10.0.1.6 255.255.255.0
ip mtu 1480
ip ospf authentication-key ospfauth
!
router ospf 6
router-id 6.6.6.6
log-adjacency-changes
area 0 authentication
area 4 stub no-summary #Configuration of regular stub area, which will not receive LSA3, LSA4, LSA5 and LSA7. Routers inside area don't need the "no-summary" keyword, because they do not generate LSA3 at all.
area 4 default-cost 100 #Explicit setting of default route in LSA3 for this area.
area 5 nssa default-information-originate #Configuration of regular NSSA, which will not receive LSA4, LSA5. Without keyword "default-information-originate" an ABR won't advertise default route into that area (as with other stub areas).
summary-address 11.0.0.0 255.255.252.0 #It is LSA5 filtering on ASBR. Instead of 4 LSA5 it will advertise only one.
redistribute rip subnets #If router redistributes information from other routing sources it becomes an ASBR. Without keyword "subnets" OSPF will redistribute only classful network 11.0.0.0.
network 10.0.0.25 0.0.0.0 area 4
network 10.0.0.32 0.0.0.3 area 5
network 10.0.1.6 0.0.0.0 area 0
maximum-paths 13 #By default OSPF allows only 4 equal-cost routes to be installed in the routing table.
!
router rip
version 2
network 11.0.0.0
no auto-summary
R7:
interface Loopback0
ip address 172.16.2.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 172.16.3.1 255.255.255.0
ip ospf network point-to-point
!
interface FastEthernet1/1
description To R10
no switchport
ip address 10.0.0.29 255.255.255.252
ip ospf message-digest-key 1 md5 area1
!
interface FastEthernet1/2
description To R3
no switchport
ip address 10.0.0.18 255.255.255.252
ip ospf message-digest-key 1 md5 ospfa1
!
router ospf 1
router-id 7.7.7.7
log-adjacency-changes
area 1 authentication message-digest
passive-interface default
no passive-interface FastEthernet1/1
no passive-interface FastEthernet1/2
network 10.0.0.16 0.0.0.3 area 1
network 10.0.0.28 0.0.0.3 area 1
network 172.16.2.0 0.0.0.255 area 1
network 172.16.3.1 0.0.0.0 area 1
R8:
interface FastEthernet1/0
description To R5
no switchport
ip address 10.0.0.22 255.255.255.252
!
router ospf 8
router-id 8.8.8.8
log-adjacency-changes
area 3 stub #Regular stub area.
network 10.0.0.20 0.0.0.3 area 3
R9:
interface FastEthernet1/0
description To R6
no switchport
ip address 10.0.0.26 255.255.255.252
!
router ospf 9
router-id 9.9.9.9
log-adjacency-changes
area 4 stub #On internal routers configuration as for normal stub area. But on ABR you specify "no-summary" to make the area totally stubby.
network 10.0.0.24 0.0.0.3 area 4
R10:
interface Loopback0
ip address 172.16.4.1 255.255.255.0
ip ospf network point-to-point
!
interface FastEthernet1/1
description To R7
no switchport
ip address 10.0.0.30 255.255.255.252
ip ospf authentication message-digest
ip ospf authentication-key area1
!
router ospf 10
router-id 10.10.10.10
log-adjacency-changes
area 1 virtual-link 1.1.1.1 authentication message-digest #Virtual link from area 10 to area 0, but area 1 is a transit area for this virtual link.
area 1 virtual-link 1.1.1.1 message-digest-key 1 md5 vlink #Interestingly, that after the virtual link comes up R10 becomes an ABR.
network 10.0.0.30 0.0.0.0 area 1
network 172.16.4.0 0.0.0.255 area 10
R11:
interface FastEthernet1/1
no switchport
ip address 10.0.0.34 255.255.255.252
!
router ospf 11
router-id 11.11.11.11
log-adjacency-changes
area 5 nssa #Regular NSSA requires this command on all internal routers and ABRs.
network 10.0.0.32 0.0.0.3 area 5
R12:
interface FastEthernet1/1
description To R5
no switchport
ip address 10.0.0.38 255.255.255.252
!
router ospf 12
router-id 12.12.12.12
log-adjacency-changes
area 6 nssa #Totally NNSA area requires this command on all internal routers, on ABRs you need to add "no-summary keyword". No any additional commands required for default route propagation as with regular NSSA.
passive-interface FastEthernet0/0
network 10.0.0.36 0.0.0.3 area 6
To verify these features here is the actual output from routers:
R1#show ip route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/42] via 10.0.0.6, 04:36:48, FastEthernet1/1
O 172.16.1.0/24 [110/40] via 10.0.0.6, 04:37:34, FastEthernet1/1
O 172.16.2.0/24 [110/41] via 10.0.0.6, 04:36:58, FastEthernet1/1
O 172.16.2.0/23 is a summary, 04:36:58, Null0
O 172.16.3.0/24 [110/41] via 10.0.0.6, 04:36:58, FastEthernet1/1
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O IA 10.0.0.8/30 [110/2] via 10.0.1.2, 04:37:34, FastEthernet1/2
[110/2] via 10.0.0.2, 04:37:18, FastEthernet1/0
O 10.0.0.12/30 [110/40] via 10.0.0.6, 04:37:34, FastEthernet1/1
C 10.0.2.0/24 is directly connected, Loopback1
C 10.0.0.0/30 is directly connected, FastEthernet1/0
C 10.0.1.0/24 is directly connected, FastEthernet1/2
C 10.0.0.4/30 is directly connected, FastEthernet1/1
O IA 10.0.0.24/30 [110/2] via 10.0.1.6, 04:37:34, FastEthernet1/2
O 10.0.0.28/30 [110/41] via 10.0.0.6, 04:36:58, FastEthernet1/1
O 10.0.0.16/30 [110/40] via 10.0.0.6, 04:36:58, FastEthernet1/1
O IA 10.0.0.20/30 [110/2] via 10.0.1.5, 04:37:34, FastEthernet1/2
O IA 10.0.0.32/30 [110/2] via 10.0.1.6, 04:37:34, FastEthernet1/2
O IA 10.0.0.36/30 [110/2] via 10.0.1.5, 04:34:24, FastEthernet1/2
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.1.6, 04:37:34, FastEthernet1/2
S* 0.0.0.0/0 is directly connected, FastEthernet0/0
R2#show ip route
Gateway of last resort is 10.0.1.1 to network 0.0.0.0
2.0.0.0/32 is subnetted, 1 subnets
C 2.2.2.2 is directly connected, Loopback0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/43] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/43] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 172.16.1.0/24 [110/41] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/41] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 172.16.2.0/24 [110/44] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/44] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 172.16.2.0/23 [110/42] via 10.0.1.1, 04:37:37, FastEthernet1/2
[110/42] via 10.0.0.1, 04:37:37, FastEthernet1/0
O IA 172.16.3.0/24 [110/44] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/44] via 10.0.0.1, 01:41:35, FastEthernet1/0
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
C 10.0.0.8/30 is directly connected, FastEthernet1/1
C 10.0.0.12/30 is directly connected, FastEthernet1/3
O 10.0.2.0/24 [110/2] via 10.0.1.1, 04:38:17, FastEthernet1/2
[110/2] via 10.0.0.1, 04:37:57, FastEthernet1/0
C 10.0.0.0/30 is directly connected, FastEthernet1/0
C 10.0.1.0/24 is directly connected, FastEthernet1/2
O IA 10.0.0.4/30 [110/31] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/31] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 10.0.0.24/30 [110/2] via 10.0.1.6, 04:38:17, FastEthernet1/2
O IA 10.0.0.28/30 [110/42] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/42] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 10.0.0.16/30 [110/41] via 10.0.1.1, 01:41:35, FastEthernet1/2
[110/41] via 10.0.0.1, 01:41:35, FastEthernet1/0
O IA 10.0.0.20/30 [110/2] via 10.0.1.5, 04:38:17, FastEthernet1/2
O IA 10.0.0.32/30 [110/2] via 10.0.1.6, 04:38:17, FastEthernet1/2
O IA 10.0.0.36/30 [110/2] via 10.0.1.5, 04:35:05, FastEthernet1/2
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.1.6, 04:38:17, FastEthernet1/2
O*E2 0.0.0.0/0 [110/1] via 10.0.1.1, 04:37:57, FastEthernet1/2
[110/1] via 10.0.0.1, 04:37:57, FastEthernet1/0
R3#show ip route
Gateway of last resort is 10.0.0.5 to network 0.0.0.0
172.16.0.0/24 is subnetted, 3 subnets
O IA 172.16.4.0 [110/12] via 10.0.0.18, 04:38:11, FastEthernet1/2
C 172.16.1.0 is directly connected, FastEthernet1/10
O 172.16.3.0 [110/11] via 10.0.0.18, 04:38:11, FastEthernet1/2
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 11 subnets, 2 masks
O IA 10.0.0.8/30 [110/32] via 10.0.0.5, 01:42:05, FastEthernet1/1
C 10.0.0.12/30 is directly connected, FastEthernet1/3
O IA 10.0.2.0/24 [110/31] via 10.0.0.5, 01:42:05, FastEthernet1/1
O IA 10.0.1.0/24 [110/24] via 10.0.0.18, 01:42:05, FastEthernet1/2
C 10.0.0.4/30 is directly connected, FastEthernet1/1
O IA 10.0.0.24/30 [110/32] via 10.0.0.5, 01:42:05, FastEthernet1/1
O 10.0.0.28/30 [110/11] via 10.0.0.18, 04:38:11, FastEthernet1/2
C 10.0.0.16/30 is directly connected, FastEthernet1/2
O IA 10.0.0.20/30 [110/32] via 10.0.0.5, 01:42:05, FastEthernet1/1
O IA 10.0.0.32/30 [110/32] via 10.0.0.5, 01:42:05, FastEthernet1/1
O IA 10.0.0.36/30 [110/32] via 10.0.0.5, 01:42:05, FastEthernet1/1
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.0.5, 01:42:06, FastEthernet1/1
O*E2 0.0.0.0/0 [110/1] via 10.0.0.5, 04:38:28, FastEthernet1/1
R4#show ip route
Gateway of last resort is 10.0.0.9 to network 0.0.0.0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/44] via 10.0.0.9, 01:42:15, FastEthernet1/1
O IA 172.16.1.0/24 [110/42] via 10.0.0.9, 01:42:11, FastEthernet1/1
O IA 172.16.2.0/24 [110/45] via 10.0.0.9, 01:42:15, FastEthernet1/1
O IA 172.16.2.0/23 [110/43] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 172.16.3.0/24 [110/45] via 10.0.0.9, 01:42:15, FastEthernet1/1
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 11 subnets, 2 masks
C 10.0.0.8/30 is directly connected, FastEthernet1/1
O IA 10.0.0.12/30 [110/2] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.2.0/24 [110/3] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.1.0/24 [110/2] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.0.4/30 [110/32] via 10.0.0.9, 01:42:11, FastEthernet1/1
O IA 10.0.0.24/30 [110/3] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.0.28/30 [110/43] via 10.0.0.9, 01:42:11, FastEthernet1/1
O IA 10.0.0.16/30 [110/42] via 10.0.0.9, 01:42:11, FastEthernet1/1
O IA 10.0.0.20/30 [110/3] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.0.32/30 [110/3] via 10.0.0.9, 04:36:49, FastEthernet1/1
O IA 10.0.0.36/30 [110/3] via 10.0.0.9, 04:35:46, FastEthernet1/1
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.0.9, 04:36:49, FastEthernet1/1
O*E2 0.0.0.0/0 [110/1] via 10.0.0.9, 04:36:49, FastEthernet1/1
R5#show ip route
Gateway of last resort is 10.0.1.1 to network 0.0.0.0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/43] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 172.16.1.0/24 [110/41] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 172.16.2.0/24 [110/44] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 172.16.2.0/23 [110/42] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 172.16.3.0/24 [110/44] via 10.0.1.1, 01:14:14, FastEthernet1/2
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O IA 10.0.0.8/30 [110/2] via 10.0.1.2, 01:14:14, FastEthernet1/2
O IA 10.0.0.12/30 [110/2] via 10.0.1.2, 01:14:14, FastEthernet1/2
O 10.0.2.0/24 [110/2] via 10.0.1.1, 01:14:14, FastEthernet1/2
O 10.0.0.0/30 [110/2] via 10.0.1.2, 01:14:14, FastEthernet1/2
[110/2] via 10.0.1.1, 01:14:14, FastEthernet1/2
C 10.0.1.0/24 is directly connected, FastEthernet1/2
O IA 10.0.0.4/30 [110/31] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 10.0.0.24/30 [110/2] via 10.0.1.6, 01:14:14, FastEthernet1/2
O IA 10.0.0.28/30 [110/42] via 10.0.1.1, 01:14:14, FastEthernet1/2
O IA 10.0.0.16/30 [110/41] via 10.0.1.1, 01:14:14, FastEthernet1/2
C 10.0.0.20/30 is directly connected, FastEthernet1/0
O IA 10.0.0.32/30 [110/2] via 10.0.1.6, 01:14:14, FastEthernet1/2
C 10.0.0.36/30 is directly connected, FastEthernet1/1
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.1.6, 01:14:14, FastEthernet1/2
O*E2 0.0.0.0/0 [110/1] via 10.0.1.1, 01:14:14, FastEthernet1/2
R6#show ip route
Gateway of last resort is 10.0.1.1 to network 0.0.0.0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/43] via 10.0.1.1, 04:38:28, FastEthernet1/2
O IA 172.16.1.0/24 [110/41] via 10.0.1.1, 01:42:42, FastEthernet1/2
O IA 172.16.2.0/24 [110/44] via 10.0.1.1, 04:38:28, FastEthernet1/2
O IA 172.16.2.0/23 [110/42] via 10.0.1.1, 04:38:47, FastEthernet1/2
O IA 172.16.3.0/24 [110/44] via 10.0.1.1, 04:38:28, FastEthernet1/2
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O IA 10.0.0.8/30 [110/2] via 10.0.1.2, 04:39:26, FastEthernet1/2
O IA 10.0.0.12/30 [110/2] via 10.0.1.2, 04:39:26, FastEthernet1/2
O 10.0.2.0/24 [110/2] via 10.0.1.1, 04:39:26, FastEthernet1/2
O 10.0.0.0/30 [110/2] via 10.0.1.2, 04:39:26, FastEthernet1/2
[110/2] via 10.0.1.1, 04:39:06, FastEthernet1/2
C 10.0.1.0/24 is directly connected, FastEthernet1/2
O IA 10.0.0.4/30 [110/31] via 10.0.1.1, 04:39:26, FastEthernet1/2
C 10.0.0.24/30 is directly connected, FastEthernet1/0
O IA 10.0.0.28/30 [110/42] via 10.0.1.1, 01:42:42, FastEthernet1/2
O IA 10.0.0.16/30 [110/41] via 10.0.1.1, 01:42:42, FastEthernet1/2
O IA 10.0.0.20/30 [110/2] via 10.0.1.5, 04:39:36, FastEthernet1/2
C 10.0.0.32/30 is directly connected, FastEthernet1/1
O IA 10.0.0.36/30 [110/2] via 10.0.1.5, 04:36:12, FastEthernet1/2
11.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
C 11.0.3.0/24 is directly connected, Loopback3
C 11.0.2.0/24 is directly connected, Loopback2
C 11.0.1.0/24 is directly connected, Loopback1
C 11.0.0.0/24 is directly connected, Loopback0
O 11.0.0.0/22 is a summary, 01:42:36, Null0
O*E2 0.0.0.0/0 [110/1] via 10.0.1.1, 04:39:04, FastEthernet1/2
R7#show ip route
Gateway of last resort is 10.0.0.17 to network 0.0.0.0
172.16.0.0/24 is subnetted, 4 subnets
O IA 172.16.4.0 [110/2] via 10.0.0.30, 04:38:51, FastEthernet1/1
O 172.16.1.0 [110/11] via 10.0.0.17, 04:39:01, FastEthernet1/2
C 172.16.2.0 is directly connected, Loopback0
C 172.16.3.0 is directly connected, Loopback1
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 11 subnets, 2 masks
O IA 10.0.0.8/30 [110/33] via 10.0.0.17, 01:42:50, FastEthernet1/2
O 10.0.0.12/30 [110/11] via 10.0.0.17, 04:39:01, FastEthernet1/2
O IA 10.0.2.0/24 [110/32] via 10.0.0.17, 01:42:50, FastEthernet1/2
O IA 10.0.1.0/24 [110/14] via 10.0.0.30, 01:42:50, FastEthernet1/1
O 10.0.0.4/30 [110/31] via 10.0.0.17, 04:39:01, FastEthernet1/2
O IA 10.0.0.24/30 [110/33] via 10.0.0.17, 01:42:50, FastEthernet1/2
C 10.0.0.28/30 is directly connected, FastEthernet1/1
C 10.0.0.16/30 is directly connected, FastEthernet1/2
O IA 10.0.0.20/30 [110/33] via 10.0.0.17, 01:42:50, FastEthernet1/2
O IA 10.0.0.32/30 [110/33] via 10.0.0.17, 01:42:50, FastEthernet1/2
O IA 10.0.0.36/30 [110/33] via 10.0.0.17, 01:42:50, FastEthernet1/2
11.0.0.0/22 is subnetted, 1 subnets
O E2 11.0.0.0 [110/20] via 10.0.0.17, 04:39:01, FastEthernet1/2
O*E2 0.0.0.0/0 [110/1] via 10.0.0.17, 04:39:01, FastEthernet1/2
R8#show ip route
Gateway of last resort is 10.0.0.21 to network 0.0.0.0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/44] via 10.0.0.21, 04:38:45, FastEthernet1/0
O IA 172.16.1.0/24 [110/42] via 10.0.0.21, 01:42:59, FastEthernet1/0
O IA 172.16.2.0/24 [110/45] via 10.0.0.21, 04:38:45, FastEthernet1/0
O IA 172.16.2.0/23 [110/43] via 10.0.0.21, 04:39:04, FastEthernet1/0
O IA 172.16.3.0/24 [110/45] via 10.0.0.21, 04:38:45, FastEthernet1/0
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O IA 10.0.0.8/30 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.12/30 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.2.0/24 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.0/30 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.1.0/24 [110/2] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.4/30 [110/32] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.24/30 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.28/30 [110/43] via 10.0.0.21, 01:42:59, FastEthernet1/0
O IA 10.0.0.16/30 [110/42] via 10.0.0.21, 01:42:59, FastEthernet1/0
C 10.0.0.20/30 is directly connected, FastEthernet1/0
O IA 10.0.0.32/30 [110/3] via 10.0.0.21, 04:39:24, FastEthernet1/0
O IA 10.0.0.36/30 [110/2] via 10.0.0.21, 04:36:30, FastEthernet1/0
O*IA 0.0.0.0/0 [110/2] via 10.0.0.21, 04:39:24, FastEthernet1/0
R9#show ip route
Gateway of last resort is 10.0.0.25 to network 0.0.0.0
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.0.0.24 is directly connected, FastEthernet1/0
O*IA 0.0.0.0/0 [110/101] via 10.0.0.25, 04:39:30, FastEthernet1/0
R10#show ip route
Gateway of last resort is 10.0.0.29 to network 0.0.0.0
172.16.0.0/24 is subnetted, 4 subnets
C 172.16.4.0 is directly connected, Loopback0
O 172.16.1.0 [110/12] via 10.0.0.29, 04:39:27, FastEthernet1/1
O 172.16.2.0 [110/2] via 10.0.0.29, 04:39:27, FastEthernet1/1
O 172.16.3.0 [110/2] via 10.0.0.29, 04:39:27, FastEthernet1/1
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks
O IA 10.0.0.8/30 [110/34] via 10.0.0.29, 01:43:16, FastEthernet1/1
O 10.0.0.12/30 [110/12] via 10.0.0.29, 04:39:27, FastEthernet1/1
O 10.0.2.0/24 [110/14] via 10.0.0.29, 04:39:12, FastEthernet1/1
O 10.0.0.0/30 [110/33] via 10.0.0.29, 04:39:12, FastEthernet1/1
O 10.0.1.0/24 [110/33] via 10.0.0.29, 04:39:12, FastEthernet1/1
O 10.0.0.4/30 [110/32] via 10.0.0.29, 04:39:27, FastEthernet1/1
C 10.0.0.28/30 is directly connected, FastEthernet1/1
O 10.0.0.16/30 [110/2] via 10.0.0.29, 04:39:27, FastEthernet1/1
O*E2 0.0.0.0/0 [110/1] via 10.0.0.29, 04:39:27, FastEthernet1/1
R11#show ip rout
Gateway of last resort is 10.0.0.33 to network 0.0.0.0
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
O IA 172.16.4.0/24 [110/44] via 10.0.0.33, 04:39:11, FastEthernet1/1
O IA 172.16.1.0/24 [110/42] via 10.0.0.33, 01:43:25, FastEthernet1/1
O IA 172.16.2.0/24 [110/45] via 10.0.0.33, 04:39:11, FastEthernet1/1
O IA 172.16.2.0/23 [110/43] via 10.0.0.33, 04:39:30, FastEthernet1/1
O IA 172.16.3.0/24 [110/45] via 10.0.0.33, 04:39:11, FastEthernet1/1
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O IA 10.0.0.8/30 [110/3] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.0.12/30 [110/3] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.2.0/24 [110/3] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.0.0/30 [110/3] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.1.0/24 [110/2] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.0.4/30 [110/32] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.0.24/30 [110/2] via 10.0.0.33, 04:39:53, FastEthernet1/1
O IA 10.0.0.28/30 [110/43] via 10.0.0.33, 01:43:25, FastEthernet1/1
O IA 10.0.0.16/30 [110/42] via 10.0.0.33, 01:43:25, FastEthernet1/1
O IA 10.0.0.20/30 [110/3] via 10.0.0.33, 04:39:53, FastEthernet1/1
C 10.0.0.32/30 is directly connected, FastEthernet1/1
O IA 10.0.0.36/30 [110/3] via 10.0.0.33, 04:36:55, FastEthernet1/1
11.0.0.0/22 is subnetted, 1 subnets
O N2 11.0.0.0 [110/20] via 10.0.0.33, 04:39:53, FastEthernet1/1
O*N2 0.0.0.0/0 [110/1] via 10.0.0.33, 04:39:53, FastEthernet1/1
R12#show ip route
Gateway of last resort is 10.0.0.37 to network 0.0.0.0
C 198.18.0.0/24 is directly connected, FastEthernet0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.0.0.36 is directly connected, FastEthernet1/1
O*IA 0.0.0.0/0 [110/2] via 10.0.0.37, 04:35:30, FastEthernet1/1
R1#show ip ospf database
OSPF Router with ID (1.1.1.1) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 823 0x8000000D 0x00F058 4
2.2.2.2 2.2.2.2 800 0x8000000B 0x0026AB 2
5.5.5.5 5.5.5.5 548 0x8000000B 0x00B02C 1
6.6.6.6 6.6.6.6 864 0x8000000B 0x007261 1
10.10.10.10 10.10.10.10 1 (DNA) 0x80000002 0x00761D 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.2 2.2.2.2 800 0x80000009 0x0021F3
10.0.1.6 6.6.6.6 864 0x8000000A 0x003E89
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 1.1.1.1 823 0x80000009 0x00CB3C
10.0.0.4 10.10.10.10 11 (DNA) 0x80000001 0x00E009
10.0.0.8 2.2.2.2 800 0x80000009 0x0062BA
10.0.0.12 1.1.1.1 823 0x80000009 0x00DF16
10.0.0.12 2.2.2.2 800 0x80000009 0x003ADE
10.0.0.12 10.10.10.10 11 (DNA) 0x80000001 0x00C72E
10.0.0.16 1.1.1.1 823 0x80000009 0x00B73A
10.0.0.16 10.10.10.10 11 (DNA) 0x80000001 0x003BC0
10.0.0.20 5.5.5.5 790 0x80000009 0x008F75
10.0.0.24 6.6.6.6 864 0x80000009 0x0049B3
10.0.0.28 1.1.1.1 823 0x80000009 0x00499B
10.0.0.28 10.10.10.10 11 (DNA) 0x80000001 0x00B838
10.0.0.32 6.6.6.6 864 0x80000009 0x00F8FB
10.0.0.36 5.5.5.5 548 0x80000009 0x00EE06
172.16.1.0 1.1.1.1 823 0x80000009 0x005CEE
172.16.1.0 10.10.10.10 11 (DNA) 0x80000001 0x004407
172.16.2.0 1.1.1.1 823 0x80000009 0x0056F3
172.16.2.0 10.10.10.10 11 (DNA) 0x80000001 0x00D47F
172.16.3.0 10.10.10.10 11 (DNA) 0x80000001 0x00C989
172.16.4.0 10.10.10.10 11 (DNA) 0x80000001 0x00B49E
Summary ASB Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 11 (DNA) 0x80000001 0x00618E
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 824 0x8000000B 0x007831 2
3.3.3.3 3.3.3.3 279 0x8000000D 0x00440C 5
7.7.7.7 7.7.7.7 820 0x8000000B 0x007741 4
10.10.10.10 10.10.10.10 711 0x8000000C 0x007111 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.18 7.7.7.7 820 0x80000009 0x00F8DB
10.0.0.30 10.10.10.10 711 0x80000009 0x00554B
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.8 1.1.1.1 824 0x80000009 0x008A95
10.0.0.20 1.1.1.1 824 0x80000009 0x001202
10.0.0.24 1.1.1.1 824 0x80000009 0x00E926
10.0.0.32 1.1.1.1 824 0x80000009 0x00996E
10.0.0.36 1.1.1.1 581 0x80000009 0x007192
10.0.1.0 1.1.1.1 824 0x80000009 0x00D74D
10.0.1.0 10.10.10.10 711 0x8000000B 0x003DB5
10.0.2.0 1.1.1.1 824 0x80000009 0x00CC57
172.16.4.0 10.10.10.10 711 0x80000009 0x00A4A6
Summary ASB Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 711 0x80000009 0x005196
5.5.5.5 1.1.1.1 581 0x80000009 0x0070AA
5.5.5.5 10.10.10.10 711 0x80000009 0x00A234
6.6.6.6 1.1.1.1 824 0x80000009 0x0042D4
6.6.6.6 10.10.10.10 711 0x80000009 0x00745E
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 824 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 865 0x80000009 0x0084F3 0
R2#show ip ospf database
OSPF Router with ID (2.2.2.2) (Process ID 2)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 840 0x8000000D 0x00F058 4
2.2.2.2 2.2.2.2 815 0x8000000B 0x0026AB 2
5.5.5.5 5.5.5.5 564 0x8000000B 0x00B02C 1
6.6.6.6 6.6.6.6 879 0x8000000B 0x007261 1
10.10.10.10 10.10.10.10 2 (DNA) 0x80000002 0x00761D 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.2 2.2.2.2 814 0x80000009 0x0021F3
10.0.1.6 6.6.6.6 879 0x8000000A 0x003E89
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 1.1.1.1 840 0x80000009 0x00CB3C
10.0.0.4 10.10.10.10 12 (DNA) 0x80000001 0x00E009
10.0.0.8 2.2.2.2 815 0x80000009 0x0062BA
10.0.0.12 1.1.1.1 840 0x80000009 0x00DF16
10.0.0.12 2.2.2.2 815 0x80000009 0x003ADE
10.0.0.12 10.10.10.10 12 (DNA) 0x80000001 0x00C72E
10.0.0.16 1.1.1.1 840 0x80000009 0x00B73A
10.0.0.16 10.10.10.10 12 (DNA) 0x80000001 0x003BC0
10.0.0.20 5.5.5.5 806 0x80000009 0x008F75
10.0.0.24 6.6.6.6 879 0x80000009 0x0049B3
10.0.0.28 1.1.1.1 840 0x80000009 0x00499B
10.0.0.28 10.10.10.10 12 (DNA) 0x80000001 0x00B838
10.0.0.32 6.6.6.6 879 0x80000009 0x00F8FB
10.0.0.36 5.5.5.5 564 0x80000009 0x00EE06
172.16.1.0 1.1.1.1 840 0x80000009 0x005CEE
172.16.1.0 10.10.10.10 12 (DNA) 0x80000001 0x004407
172.16.2.0 1.1.1.1 840 0x80000009 0x0056F3
172.16.2.0 10.10.10.10 12 (DNA) 0x80000001 0x00D47F
172.16.3.0 10.10.10.10 12 (DNA) 0x80000001 0x00C989
172.16.4.0 10.10.10.10 12 (DNA) 0x80000001 0x00B49E
Summary ASB Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 12 (DNA) 0x80000001 0x00618E
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 316 0x8000000B 0x00E51E 1
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 2.2.2.2 316 0x80000004 0x00C146
10.0.0.8 2.2.2.2 815 0x80000009 0x0062BA
10.0.0.16 2.2.2.2 316 0x80000004 0x00AD44
10.0.0.20 2.2.2.2 815 0x80000009 0x00F31C
10.0.0.24 2.2.2.2 815 0x80000009 0x00CB40
10.0.0.28 2.2.2.2 316 0x80000004 0x003FA5
10.0.0.32 2.2.2.2 815 0x80000009 0x007B88
10.0.0.36 2.2.2.2 815 0x80000009 0x0053AC
10.0.1.0 2.2.2.2 815 0x80000009 0x00B967
10.0.2.0 2.2.2.2 815 0x80000009 0x00B866
172.16.1.0 2.2.2.2 316 0x80000004 0x0052F8
172.16.2.0 2.2.2.2 815 0x80000009 0x004203
172.16.2.255 2.2.2.2 316 0x80000004 0x0065E1
172.16.3.0 2.2.2.2 316 0x80000004 0x005AEB
172.16.4.0 2.2.2.2 316 0x80000004 0x004501
Summary ASB Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 2.2.2.2 815 0x80000009 0x000B1C
5.5.5.5 2.2.2.2 815 0x80000009 0x0052C4
6.6.6.6 2.2.2.2 815 0x80000009 0x0024EE
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 815 0x8000000A 0x00D121 1
4.4.4.4 4.4.4.4 777 0x8000000A 0x00449E 1
Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
10.0.0.9 2.2.2.2 815 0x80000009 0x007190
Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 2.2.2.2 316 0x8000000B 0x00B34D
10.0.0.12 2.2.2.2 816 0x80000009 0x003ADE
10.0.0.16 2.2.2.2 316 0x8000000C 0x009D4C
10.0.0.20 2.2.2.2 816 0x80000009 0x00F31C
10.0.0.24 2.2.2.2 816 0x80000009 0x00CB40
10.0.0.28 2.2.2.2 316 0x8000000B 0x0031AC
10.0.0.32 2.2.2.2 816 0x80000009 0x007B88
10.0.0.36 2.2.2.2 816 0x80000009 0x0053AC
10.0.1.0 2.2.2.2 816 0x80000009 0x00B967
10.0.2.0 2.2.2.2 816 0x80000009 0x00B866
172.16.1.0 2.2.2.2 316 0x8000000C 0x004201
172.16.2.0 2.2.2.2 816 0x80000009 0x004203
172.16.2.255 2.2.2.2 316 0x80000004 0x0065E1
172.16.3.0 2.2.2.2 316 0x80000004 0x005AEB
172.16.4.0 2.2.2.2 316 0x8000000A 0x003907
Summary ASB Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 2.2.2.2 816 0x80000009 0x000B1C
5.5.5.5 2.2.2.2 816 0x80000009 0x0052C4
6.6.6.6 2.2.2.2 816 0x80000009 0x0024EE
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 841 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 881 0x80000009 0x0084F3 0
R3#sh ip ospf database
OSPF Router with ID (3.3.3.3) (Process ID 3)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 857 0x8000000B 0x007831 2
3.3.3.3 3.3.3.3 309 0x8000000D 0x00440C 5
7.7.7.7 7.7.7.7 851 0x8000000B 0x007741 4
10.10.10.10 10.10.10.10 742 0x8000000C 0x007111 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.18 7.7.7.7 851 0x80000009 0x00F8DB
10.0.0.30 10.10.10.10 742 0x80000009 0x00554B
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.8 1.1.1.1 857 0x80000009 0x008A95
10.0.0.20 1.1.1.1 857 0x80000009 0x001202
10.0.0.24 1.1.1.1 857 0x80000009 0x00E926
10.0.0.32 1.1.1.1 857 0x80000009 0x00996E
10.0.0.36 1.1.1.1 613 0x80000009 0x007192
10.0.1.0 1.1.1.1 857 0x80000009 0x00D74D
10.0.1.0 10.10.10.10 742 0x8000000B 0x003DB5
10.0.2.0 1.1.1.1 857 0x80000009 0x00CC57
172.16.4.0 10.10.10.10 742 0x80000009 0x00A4A6
Summary ASB Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 742 0x80000009 0x005196
5.5.5.5 1.1.1.1 613 0x80000009 0x0070AA
5.5.5.5 10.10.10.10 742 0x80000009 0x00A234
6.6.6.6 1.1.1.1 857 0x80000009 0x0042D4
6.6.6.6 10.10.10.10 742 0x80000009 0x00745E
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 857 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 896 0x80000009 0x0084F3 0
R4#show ip ospf database
OSPF Router with ID (4.4.4.4) (Process ID 4)
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 854 0x8000000A 0x00D121 1
4.4.4.4 4.4.4.4 814 0x8000000A 0x00449E 1
Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
10.0.0.9 2.2.2.2 854 0x80000009 0x007190
Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 2.2.2.2 354 0x8000000B 0x00B34D
10.0.0.12 2.2.2.2 854 0x80000009 0x003ADE
10.0.0.16 2.2.2.2 354 0x8000000C 0x009D4C
10.0.0.20 2.2.2.2 854 0x80000009 0x00F31C
10.0.0.24 2.2.2.2 854 0x80000009 0x00CB40
10.0.0.28 2.2.2.2 354 0x8000000B 0x0031AC
10.0.0.32 2.2.2.2 854 0x80000009 0x007B88
10.0.0.36 2.2.2.2 854 0x80000009 0x0053AC
10.0.1.0 2.2.2.2 854 0x80000009 0x00B967
10.0.2.0 2.2.2.2 854 0x80000009 0x00B866
172.16.1.0 2.2.2.2 354 0x8000000C 0x004201
172.16.2.0 2.2.2.2 854 0x80000009 0x004203
172.16.2.255 2.2.2.2 354 0x80000004 0x0065E1
172.16.3.0 2.2.2.2 354 0x80000004 0x005AEB
172.16.4.0 2.2.2.2 354 0x8000000A 0x003907
Summary ASB Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 2.2.2.2 854 0x80000009 0x000B1C
5.5.5.5 2.2.2.2 854 0x80000009 0x0052C4
6.6.6.6 2.2.2.2 854 0x80000009 0x0024EE
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 880 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 919 0x80000009 0x0084F3 0
R5#show ip ospf database
OSPF Router with ID (5.5.5.5) (Process ID 5)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 898 0x8000000D 0x00F058 4
2.2.2.2 2.2.2.2 874 0x8000000B 0x0026AB 2
5.5.5.5 5.5.5.5 621 0x8000000B 0x00B02C 1
6.6.6.6 6.6.6.6 937 0x8000000B 0x007261 1
10.10.10.10 10.10.10.10 3 (DNA) 0x80000002 0x00761D 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.2 2.2.2.2 874 0x80000009 0x0021F3
10.0.1.6 6.6.6.6 937 0x8000000A 0x003E89
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 1.1.1.1 899 0x80000009 0x00CB3C
10.0.0.4 10.10.10.10 12 (DNA) 0x80000001 0x00E009
10.0.0.8 2.2.2.2 874 0x80000009 0x0062BA
10.0.0.12 1.1.1.1 898 0x80000009 0x00DF16
10.0.0.12 2.2.2.2 874 0x80000009 0x003ADE
10.0.0.12 10.10.10.10 12 (DNA) 0x80000001 0x00C72E
10.0.0.16 1.1.1.1 898 0x80000009 0x00B73A
10.0.0.16 10.10.10.10 12 (DNA) 0x80000001 0x003BC0
10.0.0.20 5.5.5.5 863 0x80000009 0x008F75
10.0.0.24 6.6.6.6 937 0x80000009 0x0049B3
10.0.0.28 1.1.1.1 898 0x80000009 0x00499B
10.0.0.28 10.10.10.10 12 (DNA) 0x80000001 0x00B838
10.0.0.32 6.6.6.6 937 0x80000009 0x00F8FB
10.0.0.36 5.5.5.5 621 0x80000009 0x00EE06
172.16.1.0 1.1.1.1 898 0x80000009 0x005CEE
172.16.1.0 10.10.10.10 12 (DNA) 0x80000001 0x004407
172.16.2.0 1.1.1.1 898 0x80000009 0x0056F3
172.16.2.0 10.10.10.10 12 (DNA) 0x80000001 0x00D47F
172.16.3.0 10.10.10.10 12 (DNA) 0x80000001 0x00C989
172.16.4.0 10.10.10.10 12 (DNA) 0x80000001 0x00B49E
Summary ASB Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 12 (DNA) 0x80000001 0x00618E
Router Link States (Area 3)
Link ID ADV Router Age Seq# Checksum Link count
5.5.5.5 5.5.5.5 864 0x8000000A 0x00368D 1
8.8.8.8 8.8.8.8 860 0x8000000A 0x005C4F 1
Net Link States (Area 3)
Link ID ADV Router Age Seq# Checksum
10.0.0.22 8.8.8.8 860 0x80000009 0x00576B
Summary Net Link States (Area 3)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 5.5.5.5 864 0x80000009 0x000B17
10.0.0.0 5.5.5.5 864 0x80000009 0x008099
10.0.0.4 5.5.5.5 864 0x80000009 0x007B7D
10.0.0.8 5.5.5.5 864 0x80000009 0x0030E1
10.0.0.12 5.5.5.5 864 0x80000009 0x000806
10.0.0.16 5.5.5.5 380 0x8000000B 0x00637D
10.0.0.24 5.5.5.5 864 0x80000009 0x008F72
10.0.0.28 5.5.5.5 380 0x8000000A 0x00F6DD
10.0.0.32 5.5.5.5 864 0x80000009 0x003FBA
10.0.0.36 5.5.5.5 622 0x80000009 0x000DE9
10.0.1.0 5.5.5.5 864 0x80000009 0x007D99
10.0.2.0 5.5.5.5 864 0x80000009 0x007C98
172.16.1.0 5.5.5.5 380 0x8000000B 0x000832
172.16.2.0 5.5.5.5 864 0x80000009 0x000635
172.16.2.255 5.5.5.5 864 0x80000009 0x001F19
172.16.3.0 5.5.5.5 864 0x80000009 0x001423
172.16.4.0 5.5.5.5 864 0x80000009 0x00FE38
Router Link States (Area 6)
Link ID ADV Router Age Seq# Checksum Link count
5.5.5.5 5.5.5.5 622 0x8000000B 0x003960 1
12.12.12.12 12.12.12.12 469 0x8000000A 0x002A3A 1
Net Link States (Area 6)
Link ID ADV Router Age Seq# Checksum
10.0.0.37 5.5.5.5 622 0x80000009 0x009B0C
Summary Net Link States (Area 6)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 5.5.5.5 622 0x80000009 0x009287
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 900 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 939 0x80000009 0x0084F3 0
R6#show ip ospf database
OSPF Router with ID (6.6.6.6) (Process ID 6)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 912 0x8000000D 0x00F058 4
2.2.2.2 2.2.2.2 887 0x8000000B 0x0026AB 2
5.5.5.5 5.5.5.5 636 0x8000000B 0x00B02C 1
6.6.6.6 6.6.6.6 950 0x8000000B 0x007261 1
10.10.10.10 10.10.10.10 3 (DNA) 0x80000002 0x00761D 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.2 2.2.2.2 887 0x80000009 0x0021F3
10.0.1.6 6.6.6.6 950 0x8000000A 0x003E89
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 1.1.1.1 913 0x80000009 0x00CB3C
10.0.0.4 10.10.10.10 12 (DNA) 0x80000001 0x00E009
10.0.0.8 2.2.2.2 887 0x80000009 0x0062BA
10.0.0.12 1.1.1.1 912 0x80000009 0x00DF16
10.0.0.12 2.2.2.2 887 0x80000009 0x003ADE
10.0.0.12 10.10.10.10 12 (DNA) 0x80000001 0x00C72E
10.0.0.16 1.1.1.1 912 0x80000009 0x00B73A
10.0.0.16 10.10.10.10 12 (DNA) 0x80000001 0x003BC0
10.0.0.20 5.5.5.5 877 0x80000009 0x008F75
10.0.0.24 6.6.6.6 950 0x80000009 0x0049B3
10.0.0.28 1.1.1.1 912 0x80000009 0x00499B
10.0.0.28 10.10.10.10 12 (DNA) 0x80000001 0x00B838
10.0.0.32 6.6.6.6 950 0x80000009 0x00F8FB
10.0.0.36 5.5.5.5 636 0x80000009 0x00EE06
172.16.1.0 1.1.1.1 912 0x80000009 0x005CEE
172.16.1.0 10.10.10.10 12 (DNA) 0x80000001 0x004407
172.16.2.0 1.1.1.1 912 0x80000009 0x0056F3
172.16.2.0 10.10.10.10 12 (DNA) 0x80000001 0x00D47F
172.16.3.0 10.10.10.10 12 (DNA) 0x80000001 0x00C989
172.16.4.0 10.10.10.10 12 (DNA) 0x80000001 0x00B49E
Summary ASB Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 12 (DNA) 0x80000001 0x00618E
Router Link States (Area 4)
Link ID ADV Router Age Seq# Checksum Link count
6.6.6.6 6.6.6.6 951 0x8000000B 0x00486A 1
9.9.9.9 9.9.9.9 847 0x8000000A 0x00702B 1
Net Link States (Area 4)
Link ID ADV Router Age Seq# Checksum
10.0.0.26 9.9.9.9 847 0x80000009 0x00654D
Summary Net Link States (Area 4)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 6.6.6.6 951 0x80000009 0x00CEEB
Router Link States (Area 5)
Link ID ADV Router Age Seq# Checksum Link count
6.6.6.6 6.6.6.6 951 0x8000000B 0x009602 1
11.11.11.11 11.11.11.11 821 0x8000000A 0x002053 1
Net Link States (Area 5)
Link ID ADV Router Age Seq# Checksum
10.0.0.34 11.11.11.11 821 0x80000009 0x00A4ED
Summary Net Link States (Area 5)
Link ID ADV Router Age Seq# Checksum
10.0.0.0 6.6.6.6 951 0x80000009 0x00E924
10.0.0.4 6.6.6.6 951 0x80000009 0x00E408
10.0.0.8 6.6.6.6 951 0x80000009 0x00996C
10.0.0.12 6.6.6.6 951 0x80000009 0x007190
10.0.0.16 6.6.6.6 456 0x8000000B 0x00CC08
10.0.0.20 6.6.6.6 951 0x80000009 0x0021D8
10.0.0.24 6.6.6.6 951 0x80000009 0x00EE08
10.0.0.28 6.6.6.6 456 0x8000000A 0x006068
10.0.0.36 6.6.6.6 699 0x80000009 0x008069
10.0.1.0 6.6.6.6 951 0x80000009 0x00E624
10.0.2.0 6.6.6.6 951 0x80000009 0x00E523
172.16.1.0 6.6.6.6 456 0x8000000B 0x0071BC
172.16.2.0 6.6.6.6 951 0x80000009 0x006FBF
172.16.2.255 6.6.6.6 951 0x80000009 0x0088A3
172.16.3.0 6.6.6.6 951 0x80000009 0x007DAD
172.16.4.0 6.6.6.6 951 0x80000009 0x0068C2
Type-7 AS External Link States (Area 5)
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 6.6.6.6 951 0x80000009 0x004849 0
11.0.0.0 6.6.6.6 951 0x80000009 0x00680E 0
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 913 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 951 0x80000009 0x0084F3 0
R7#show ip ospf database
OSPF Router with ID (7.7.7.7) (Process ID 1)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 927 0x8000000B 0x007831 2
3.3.3.3 3.3.3.3 380 0x8000000D 0x00440C 5
7.7.7.7 7.7.7.7 920 0x8000000B 0x007741 4
10.10.10.10 10.10.10.10 811 0x8000000C 0x007111 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.18 7.7.7.7 920 0x80000009 0x00F8DB
10.0.0.30 10.10.10.10 811 0x80000009 0x00554B
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.8 1.1.1.1 927 0x80000009 0x008A95
10.0.0.20 1.1.1.1 927 0x80000009 0x001202
10.0.0.24 1.1.1.1 927 0x80000009 0x00E926
10.0.0.32 1.1.1.1 927 0x80000009 0x00996E
10.0.0.36 1.1.1.1 684 0x80000009 0x007192
10.0.1.0 1.1.1.1 927 0x80000009 0x00D74D
10.0.1.0 10.10.10.10 811 0x8000000B 0x003DB5
10.0.2.0 1.1.1.1 927 0x80000009 0x00CC57
172.16.4.0 10.10.10.10 811 0x80000009 0x00A4A6
Summary ASB Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 811 0x80000009 0x005196
5.5.5.5 1.1.1.1 684 0x80000009 0x0070AA
5.5.5.5 10.10.10.10 811 0x80000009 0x00A234
6.6.6.6 1.1.1.1 927 0x80000009 0x0042D4
6.6.6.6 10.10.10.10 811 0x80000009 0x00745E
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 927 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 967 0x80000009 0x0084F3 0
R8#show ip ospf database
OSPF Router with ID (8.8.8.8) (Process ID 8)
Router Link States (Area 3)
Link ID ADV Router Age Seq# Checksum Link count
5.5.5.5 5.5.5.5 904 0x8000000A 0x00368D 1
8.8.8.8 8.8.8.8 898 0x8000000A 0x005C4F 1
Net Link States (Area 3)
Link ID ADV Router Age Seq# Checksum
10.0.0.22 8.8.8.8 898 0x80000009 0x00576B
Summary Net Link States (Area 3)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 5.5.5.5 904 0x80000009 0x000B17
10.0.0.0 5.5.5.5 904 0x80000009 0x008099
10.0.0.4 5.5.5.5 904 0x80000009 0x007B7D
10.0.0.8 5.5.5.5 904 0x80000009 0x0030E1
10.0.0.12 5.5.5.5 904 0x80000009 0x000806
10.0.0.16 5.5.5.5 421 0x8000000B 0x00637D
10.0.0.24 5.5.5.5 904 0x80000009 0x008F72
10.0.0.28 5.5.5.5 421 0x8000000A 0x00F6DD
10.0.0.32 5.5.5.5 904 0x80000009 0x003FBA
10.0.0.36 5.5.5.5 662 0x80000009 0x000DE9
10.0.1.0 5.5.5.5 904 0x80000009 0x007D99
10.0.2.0 5.5.5.5 904 0x80000009 0x007C98
172.16.1.0 5.5.5.5 421 0x8000000B 0x000832
172.16.2.0 5.5.5.5 904 0x80000009 0x000635
172.16.2.255 5.5.5.5 904 0x80000009 0x001F19
172.16.3.0 5.5.5.5 904 0x80000009 0x001423
172.16.4.0 5.5.5.5 904 0x80000009 0x00FE38
R9#show ip ospf database
OSPF Router with ID (9.9.9.9) (Process ID 9)
Router Link States (Area 4)
Link ID ADV Router Age Seq# Checksum Link count
6.6.6.6 6.6.6.6 988 0x8000000B 0x00486A 1
9.9.9.9 9.9.9.9 883 0x8000000A 0x00702B 1
Net Link States (Area 4)
Link ID ADV Router Age Seq# Checksum
10.0.0.26 9.9.9.9 883 0x80000009 0x00654D
Summary Net Link States (Area 4)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 6.6.6.6 988 0x80000009 0x00CEEB
R10#show ip ospf database
OSPF Router with ID (10.10.10.10) (Process ID 10)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 1 (DNA) 0x80000005 0x000150 4
2.2.2.2 2.2.2.2 31 (DNA) 0x80000003 0x0036A3 2
5.5.5.5 5.5.5.5 2 (DNA) 0x80000003 0x00C024 1
6.6.6.6 6.6.6.6 60 (DNA) 0x80000003 0x008259 1
10.10.10.10 10.10.10.10 840 0x8000000A 0x006625 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.2 2.2.2.2 31 (DNA) 0x80000001 0x0031EB
10.0.1.6 6.6.6.6 47 (DNA) 0x80000002 0x004E81
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
10.0.0.4 1.1.1.1 55 (DNA) 0x80000001 0x00DB34
10.0.0.4 10.10.10.10 840 0x80000009 0x00D011
10.0.0.8 2.2.2.2 61 (DNA) 0x80000001 0x0072B2
10.0.0.12 1.1.1.1 40 (DNA) 0x80000001 0x00EF0E
10.0.0.12 2.2.2.2 61 (DNA) 0x80000001 0x004AD6
10.0.0.12 10.10.10.10 840 0x80000009 0x00B736
10.0.0.16 1.1.1.1 40 (DNA) 0x80000001 0x00C732
10.0.0.16 10.10.10.10 840 0x80000009 0x002BC8
10.0.0.20 5.5.5.5 98 (DNA) 0x80000001 0x009F6D
10.0.0.24 6.6.6.6 104 (DNA) 0x80000001 0x0059AB
10.0.0.28 1.1.1.1 5 (DNA) 0x80000001 0x005993
10.0.0.28 10.10.10.10 840 0x80000009 0x00A840
10.0.0.32 6.6.6.6 104 (DNA) 0x80000001 0x0009F3
10.0.0.36 5.5.5.5 2 (DNA) 0x80000001 0x00FEFD
172.16.1.0 1.1.1.1 40 (DNA) 0x80000001 0x006CE6
172.16.1.0 10.10.10.10 840 0x80000009 0x00340F
172.16.2.0 1.1.1.1 5 (DNA) 0x80000001 0x0066EB
172.16.2.0 10.10.10.10 840 0x80000009 0x00C487
172.16.3.0 10.10.10.10 840 0x80000009 0x00B991
172.16.4.0 10.10.10.10 840 0x80000009 0x00A4A6
Summary ASB Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 840 0x80000009 0x005196
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 960 0x8000000B 0x007831 2
3.3.3.3 3.3.3.3 413 0x8000000D 0x00440C 5
7.7.7.7 7.7.7.7 952 0x8000000B 0x007741 4
10.10.10.10 10.10.10.10 841 0x8000000C 0x007111 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.18 7.7.7.7 952 0x80000009 0x00F8DB
10.0.0.30 10.10.10.10 841 0x80000009 0x00554B
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.0.0.8 1.1.1.1 960 0x80000009 0x008A95
10.0.0.20 1.1.1.1 960 0x80000009 0x001202
10.0.0.24 1.1.1.1 960 0x80000009 0x00E926
10.0.0.32 1.1.1.1 960 0x80000009 0x00996E
10.0.0.36 1.1.1.1 716 0x80000009 0x007192
10.0.1.0 1.1.1.1 960 0x80000009 0x00D74D
10.0.1.0 10.10.10.10 841 0x8000000B 0x003DB5
10.0.2.0 1.1.1.1 960 0x80000009 0x00CC57
172.16.4.0 10.10.10.10 841 0x80000009 0x00A4A6
Summary ASB Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 841 0x80000009 0x005196
5.5.5.5 1.1.1.1 716 0x80000009 0x0070AA
5.5.5.5 10.10.10.10 841 0x80000009 0x00A234
6.6.6.6 1.1.1.1 960 0x80000009 0x0042D4
6.6.6.6 10.10.10.10 841 0x80000009 0x00745E
Router Link States (Area 10)
Link ID ADV Router Age Seq# Checksum Link count
10.10.10.10 10.10.10.10 841 0x8000000A 0x004EC8 1
Summary Net Link States (Area 10)
Link ID ADV Router Age Seq# Checksum
10.0.0.0 10.10.10.10 841 0x80000009 0x0003E1
10.0.0.4 10.10.10.10 842 0x80000009 0x00D011
10.0.0.8 10.10.10.10 334 0x8000000A 0x00BA20
10.0.0.12 10.10.10.10 842 0x80000009 0x00B736
10.0.0.16 10.10.10.10 842 0x80000009 0x002BC8
10.0.0.28 10.10.10.10 842 0x80000009 0x00A840
10.0.1.0 10.10.10.10 842 0x8000000C 0x003BB6
10.0.2.0 10.10.10.10 842 0x8000000A 0x003EB3
172.16.1.0 10.10.10.10 842 0x80000009 0x00340F
172.16.2.255 10.10.10.10 842 0x80000009 0x00C487
172.16.3.0 10.10.10.10 842 0x80000009 0x00B991
Summary ASB Link States (Area 10)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 10.10.10.10 842 0x80000009 0x005196
5.5.5.5 10.10.10.10 842 0x80000009 0x00A234
6.6.6.6 10.10.10.10 842 0x80000009 0x00745E
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 1.1.1.1 961 0x80000009 0x000D99 1
11.0.0.0 6.6.6.6 1000 0x80000009 0x0084F3 0
R11#show ip ospf database
OSPF Router with ID (11.11.11.11) (Process ID 11)
Router Link States (Area 5)
Link ID ADV Router Age Seq# Checksum Link count
6.6.6.6 6.6.6.6 1015 0x8000000B 0x009602 1
11.11.11.11 11.11.11.11 883 0x8000000A 0x002053 1
Net Link States (Area 5)
Link ID ADV Router Age Seq# Checksum
10.0.0.34 11.11.11.11 883 0x80000009 0x00A4ED
Summary Net Link States (Area 5)
Link ID ADV Router Age Seq# Checksum
10.0.0.0 6.6.6.6 1015 0x80000009 0x00E924
10.0.0.4 6.6.6.6 1015 0x80000009 0x00E408
10.0.0.8 6.6.6.6 1015 0x80000009 0x00996C
10.0.0.12 6.6.6.6 1015 0x80000009 0x007190
10.0.0.16 6.6.6.6 520 0x8000000B 0x00CC08
10.0.0.20 6.6.6.6 1015 0x80000009 0x0021D8
10.0.0.24 6.6.6.6 1015 0x80000009 0x00EE08
10.0.0.28 6.6.6.6 520 0x8000000A 0x006068
10.0.0.36 6.6.6.6 763 0x80000009 0x008069
10.0.1.0 6.6.6.6 1015 0x80000009 0x00E624
10.0.2.0 6.6.6.6 1015 0x80000009 0x00E523
172.16.1.0 6.6.6.6 520 0x8000000B 0x0071BC
172.16.2.0 6.6.6.6 1015 0x80000009 0x006FBF
172.16.2.255 6.6.6.6 1015 0x80000009 0x0088A3
172.16.3.0 6.6.6.6 1015 0x80000009 0x007DAD
172.16.4.0 6.6.6.6 1015 0x80000009 0x0068C2
Type-7 AS External Link States (Area 5)
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 6.6.6.6 1015 0x80000009 0x004849 0
11.0.0.0 6.6.6.6 1015 0x80000009 0x00680E 0
R12#show ip ospf database
OSPF Router with ID (12.12.12.12) (Process ID 12)
Router Link States (Area 6)
Link ID ADV Router Age Seq# Checksum Link count
5.5.5.5 5.5.5.5 710 0x8000000B 0x003960 1
12.12.12.12 12.12.12.12 555 0x8000000A 0x002A3A 1
Net Link States (Area 6)
Link ID ADV Router Age Seq# Checksum
10.0.0.37 5.5.5.5 710 0x80000009 0x009B0C
Summary Net Link States (Area 6)
Link ID ADV Router Age Seq# Checksum
0.0.0.0 5.5.5.5 710 0x80000009 0x009287
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