Eincop Netwax Lab Practice Labs for CCNA, CCNP, CCIE

1. Lab 28: OSPF-III
Task
1. Configure IP Address as per given in topology.
2. Configure OSPF Routing Protocol as per given in topology.
3. Configure OSPF area 3 without using network command. (Do possible configuration)
4. Make sure all routers receive all routes.
5. Configure PAT on R1 and R11.
6. Change Hello and hold interval to 15 and 60 respectively in Area 10.
7. Best path selection, R9 reach 54.0.0.2 via R6.
8. OSPF Area 1 used MD5 Authentication using password "N3tW@xL@b".
9. R1 Advertise all loopbacks on R4 with single route.
10. Make sure Area 3 Routers not received others area routes in their routing table. (Do possible
configuration)
Figure 1 Topology

2. Lab 28: OSPF-III
Solution
 Task 2: Configure OSPF Routing Protocol as per given in topology.
R1
router ospf 1
router-id 1.1.1.1
exit
int se0/0
ip ospf 1 area 3
exit
int f1/0
ip ospf 1 area 3
exit
int se0/1
ip ospf 1 area 3
exit
R2
router ospf 1
router-id 2.2.2.2
exit
int se0/0
ip ospf 1 area 3
exit
int f0/0
ip ospf 1 area 3
exit
int se0/1
ip ospf 1 area 3
exit

3. Lab 28: OSPF-III
R3
router ospf 1
router-id 3.3.3.3
exit
int se0/0
ip ospf 1 area 3
exit
int f0/0
ip ospf 1 area 3
exit
int se0/1
ip ospf 1 area 3
exit
R4
router ospf 1
router-id 4.4.4.4
exit
int se0/0
ip ospf 1 area 3
exit
int f0/0
ip ospf 1 area 3
exit
int se0/1
ip ospf 1 area 3
exit
int l1
ip ospf 1 area 3
exit
int l2

4. Lab 28: OSPF-III
ip ospf 1 area 3
exit
int l3
ip ospf 1 area 3
exit
int l4
ip ospf 1 area 3
exit
R5
router ospf 1
router-id 5.5.5.5
log-adjacency-changes
area 1 authentication message-digest
network 54.32.78.0 0.0.0.255 area 1
exit
R6
router ospf 1
router-id 6.6.6.6
log-adjacency-changes
area 1 authentication message-digest
network 54.32.78.0 0.0.0.255 area 1
network 114.204.65.0 0.0.0.255 area 1
exit
R7
router ospf 1
router-id 7.7.7.7
log-adjacency-changes
area 1 authentication message-digest
area 1 virtual-link 9.9.9.9
network 45.0.84.0 0.0.0.255 area 0
network 54.32.78.0 0.0.0.255 area 1
exit

5. Lab 28: OSPF-III
R8
router ospf 1
router-id 8.8.8.8
log-adjacency-changes
area 10 virtual-link 1.1.1.1
network 34.11.78.0 0.0.0.255 area 10
network 45.21.88.0 0.0.0.255 area 4
network 60.4.100.0 0.0.0.255 area 4
network 100.251.0.0 0.0.0.255 area 4
exit
R9
router ospf 1
router-id 9.9.9.9
log-adjacency-changes
area 1 authentication message-digest
area 1 virtual-link 7.7.7.7
network 60.4.100.0 0.0.0.255 area 4
network 100.0.0.0 0.0.0.255 area 4
network 114.204.65.0 0.0.0.255 area 1
exit
R10
router ospf 1
router-id 10.10.10.10
log-adjacency-changes
network 100.0.0.0 0.0.0.255 area 4
network 100.251.0.0 0.0.0.255 area 4
exit
R11
router ospf 1
router-id 11.11.11.11
log-adjacency-changes
network 45.21.88.0 0.0.0.255 area 4
default-information originate

6. Lab 28: OSPF-III
 Task 3: Complete in Task 2.
 Task 4: Make sure all routers receive all routes.
R1
router ospf 1
area 10 virtual-link 8.8.8.8
exit
R8
router ospf 1
area 10 virtual-link 1.1.1.1
exit
R7
router ospf 1
area 10 virtual-link 9.9.9.9
exit
R9
router ospf 1
area 10 virtual-link 7.7.7.7
exit
 Task 5: Configure PAT on R1 and R11.
R1
ip access-list extended NAT
permit ip 10.0.13.0 0.0.0.255 any
permit ip 10.0.34.0 0.0.0.255 any
permit ip 10.0.24.0 0.0.0.255 any
permit ip 10.0.12.0 0.0.0.255 any
permit ip 192.168.1.0 0.0.0.255 any
permit ip 45.0.84.0 0.0.0.255 any
permit ip 34.11.78.0 0.0.0.255 any
permit ip 54.32.78.0 0.0.0.255 any
permit ip 114.204.65.0 0.0.0.255 any
permit ip 60.4.100.0 0.0.0.255 any
permit ip 100.0.0.0 0.0.0.255 any
permit ip 100.251.0.0 0.0.0.255 any

7. Lab 28: OSPF-III
permit ip 42.21.88.0 0.0.0.255 any
permit ip 4.4.1.0 0.0.0.255 any
permit ip 4.4.2.0 0.0.0.255 any
permit ip 4.4.3.0 0.0.0.255 any
permit ip 4.4.4.0 0.0.0.255 any
exit
int f0/0
ip nat outside
exit
int f0/1
ip nat inside
exit
int se0/0
ip nat inside
exit
int f1/0
ip nat inside
exit
int se0/2
ip nat inside
exit
int se0/1
ip nat inside
exit
ip nat inside source list NAT interface f0/0 overload
R11
ip access-list extended NAT
permit ip 45.21.88.0 0.0.0.255 any
permit ip 100.251.0.0 0.0.0.255 any
permit ip 60.4.100.0 0.0.0.255 any
permit ip 100.0.0.0 0.0.0.255 any
permit ip 114.204.65.0 0.0.0.255 any

8. Lab 28: OSPF-III
permit ip 54.32.78.0 0.0.0.255 any
permit ip 34.11.78.0 0.0.0.255 any
permit ip 45.0.84.0 0.0.0.255 any
permit ip 10.0.13.0 0.0.0.255 any
permit ip 10.0.34.0 0.0.0.255 any
permit ip 10.0.24.0 0.0.0.255 any
permit ip 10.0.12.0 0.0.0.255 any
permit ip 192.168.1.0 0.0.0.255 any
permit ip 4.4.1.0 0.0.0.255 any
permit ip 4.4.2.0 0.0.0.255 any
permit ip 4.4.3.0 0.0.0.255 any
permit ip 4.4.4.0 0.0.0.255 any
exit
int f0/0
ip nat outside
exit
int f0/1
ip nat inside
exit
ip nat inside source list NAT interface f0/0 overload
 Task 6: Change Hello and hold interval to 15 and 60 respectively in Area 10.
R1
int se0/2
ip ospf hello-interval 15
ip ospf dead-interval 60
exit
R8
int se0/0
ip ospf hello-interval 15
ip ospf dead-interval 60
exit

9. Lab 28: OSPF-III
 Task 7: Best path selection, R9 reach 54.0.0.2 via R6.
R9
int f0/0
ip ospf cost 100
exit
 Task 8: OSPF Area 1 used MD5 Authentication using password "N3tW@xL@b".
R5
router ospf 1
area 1 authentication message-digest
exit
int f0/0
ip ospf message-digest-key 1 md5 N3tW@xL@b
exit
R6
router ospf 1
area 1 authentication message-digest
exit
int f0/0
ip ospf message-digest-key 1 md5 N3tW@xL@b
exit
R7
router ospf 1
area 1 authentication message-digest
exit
int f0/0
ip ospf message-digest-key 1 md5 N3tW@xL@b
exit

10. Lab 28: OSPF-III
R9
router ospf 1
area 1 authentication message-digest
exit
int s0/0
ip ospf message-digest-key 1 md5 N3tW@xL@b
exit
 Task 9: R1 Advertise all loopbacks on R4 with single route.
R1
router ospf 1
area 3 range 4.4.0.0 255.255.248.0
exit
 Task 10: Make sure Area 3 Routers not received others area routes in their routing table. (Do
possible configuration)
R1
router ospf 1
area 3 stub no-summary
exit
R2
router ospf 1
area 3 stub no-summary
exit
R3
router ospf 1
area 3 stub no-summary
exit
R4
router ospf 1
area 3 stub no-summary
exit
(Note: Verify using "sh ip route".)