Lab 1 Link to heading

topology-1

Task 1 Link to heading

Configure basic OSPF

Configuration Link to heading

hostname R1
int l0
    ip add 11.0.0.1 255.255.255.0
int l1
    ip add 11.0.1.1 255.255.255.0
int l2
    ip add 11.0.2.1 255.255.255.0
int l3
    ip add 11.0.3.1 255.255.255.0
int f0/0
    ip add 10.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 1.1.1.1 255.0.0.0
    no shut
router ospf 100
    net 11.0.0.0 0.0.0.255 area 10
    net 11.0.1.0 0.0.0.255 area 10
    net 11.0.2.0 0.0.0.255 area 10
    net 11.0.3.0 0.0.0.255 area 10
    net 1.0.0.0 0.255.255.255 area 10
    net 10.0.0.0 0.255.255.255 area 10
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R2
int l0
    ip add 12.0.0.1 255.255.255.0
int l1
    ip add 12.0.1.1 255.255.255.0
int l2
    ip add 12.0.2.1 255.255.255.0
int l3
    ip add 12.0.3.1 255.255.255.0
int f0/0
    ip add 20.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 1.1.1.2 255.0.0.0
    no shut
int s1/1
    ip add 2.2.2.1 255.0.0.0
    no shut
router ospf 100
    net 1.0.0.0 0.255.255.255 area 10
    net 12.0.0.0 0.0.0.255 area 0
    net 12.0.1.0 0.0.0.255 area 0
    net 12.0.2.0 0.0.0.255 area 0
    net 12.0.3.0 0.0.0.255 area 0
    net 2.0.0.0 0.255.255.255 area 0
    net 20.0.0.0 0.255.255.255 area 0
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R3
int l0
    ip add 13.0.0.1 255.255.255.0
int l1
    ip add 13.0.1.1 255.255.255.0
int l2
    ip add 13.0.2.1 255.255.255.0
int l3
    ip add 13.0.3.1 255.255.255.0
int f0/0
    ip add 30.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 2.2.2.2 255.0.0.0
    no shut
int s1/1
    ip add 3.3.3.1 255.0.0.0
    no shut
router ospf 100
    net 13.0.0.0 0.0.0.255 area 0
    net 13.0.1.0 0.0.0.255 area 0
    net 13.0.2.0 0.0.0.255 area 0
    net 13.0.3.0 0.0.0.255 area 0
    net 2.0.0.0 0.255.255.255 area 0
    net 30.0.0.0 0.255.255.255 area 20
    net 3.0.0.0 0.255.255.255 area 20
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R4
int l0
    ip add 14.0.0.1 255.255.255.0
int l1
    ip add 14.0.1.1 255.255.255.0
int l2
    ip add 14.0.2.1 255.255.255.0
int l3
    ip add 14.0.3.1 255.255.255.0
int f0/0
    ip add 40.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 3.3.3.2 255.0.0.0
    no shut
router rip
    version 2
    no auto-sum
    net 14.0.0.0
    net 14.0.1.0
    net 14.0.2.0
    net 14.0.3.0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
router ospf 100
    net 40.0.0.0 0.255.255.255 area 20
    net 3.0.0.0 0.255.255.255 area 20
    redistribute rip subnets
    passive-interface f0/0

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       E1 - OSPF external type 1, E2 - OSPF external type 2

Gateway of last resort is not set
O IA  2.0.0.0/8 [110/128] via 1.1.1.2, 00:03:42, Serial1/0
O IA  3.0.0.0/8 [110/192] via 1.1.1.2, 00:03:03, Serial1/0
      12.0.0.0/32 is subnetted, 4 subnets
O IA     12.0.0.1 [110/65] via 1.1.1.2, 00:03:42, Serial1/0
O IA     12.0.1.1 [110/65] via 1.1.1.2, 00:03:42, Serial1/0
O IA     12.0.2.1 [110/65] via 1.1.1.2, 00:03:42, Serial1/0
O IA     12.0.3.1 [110/65] via 1.1.1.2, 00:03:42, Serial1/0
      13.0.0.0/32 is subnetted, 4 subnets
O IA     13.0.0.1 [110/129] via 1.1.1.2, 00:03:42, Serial1/0
O IA     13.0.1.1 [110/129] via 1.1.1.2, 00:03:42, Serial1/0
O IA     13.0.2.1 [110/129] via 1.1.1.2, 00:03:42, Serial1/0
O IA     13.0.3.1 [110/129] via 1.1.1.2, 00:03:42, Serial1/0
      14.0.0.0/24 is subnetted, 4 subnets
O E2     14.0.0.0 [110/20] via 1.1.1.2, 00:01:27, Serial1/0
O E2     14.0.1.0 [110/20] via 1.1.1.2, 00:01:27, Serial1/0
O E2     14.0.2.0 [110/20] via 1.1.1.2, 00:01:27, Serial1/0
O E2     14.0.3.0 [110/20] via 1.1.1.2, 00:01:27, Serial1/0
O IA  20.0.0.0/8 [110/65] via 1.1.1.2, 00:03:42, Serial1/0
O IA  30.0.0.0/8 [110/129] via 1.1.1.2, 00:03:42, Serial1/0
O IA  40.0.0.0/8 [110/193] via 1.1.1.2, 00:03:03, Serial1/0

Task 2 Link to heading

Configure Area 10 to stop LSA Type 5 and Type 4 (Stub Area).

Configuration Link to heading

R1(config)#
router ospf 100
area 10 stub
R2(config)#
router ospf 100
area 10 stub

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       * - candidate default

Gateway of last resort is 1.1.1.2 to network 0.0.0.0
O*IA  0.0.0.0/0 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
O IA  2.0.0.0/8 [110/128] via 1.1.1.2, 00:00:01, Serial1/0
O IA  3.0.0.0/8 [110/192] via 1.1.1.2, 00:00:01, Serial1/0
      12.0.0.0/32 is subnetted, 4 subnets
O IA     12.0.0.1 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
O IA     12.0.1.1 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
O IA     12.0.2.1 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
O IA     12.0.3.1 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
      13.0.0.0/32 is subnetted, 4 subnets
O IA     13.0.0.1 [110/129] via 1.1.1.2, 00:00:01, Serial1/0
O IA     13.0.1.1 [110/129] via 1.1.1.2, 00:00:01, Serial1/0
O IA     13.0.2.1 [110/129] via 1.1.1.2, 00:00:01, Serial1/0
O IA     13.0.3.1 [110/129] via 1.1.1.2, 00:00:01, Serial1/0
O IA  20.0.0.0/8 [110/65] via 1.1.1.2, 00:00:01, Serial1/0
O IA  30.0.0.0/8 [110/129] via 1.1.1.2, 00:00:01, Serial1/0
O IA  40.0.0.0/8 [110/193] via 1.1.1.2, 00:00:01, Serial1/0

Task 3 Link to heading

Configure Area 10 to stop LSA Type 5, Type 4 and Type 3 (Totally Stub Area).

Configuration Link to heading

R1(config)#
router ospf 100
area 10 stub
R2(config)#
router ospf 100
area 10 stub no-summary

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       * - candidate default

Gateway of last resort is 1.1.1.2 to network 0.0.0.0
O*IA  0.0.0.0/0 [110/65] via 1.1.1.2, 00:00:00, Serial1/0

Lab 2 Link to heading

topology-2

Task 1 Link to heading

Configure basic OSPF

Configuration Link to heading

hostname R1
int l0
    ip add 11.0.0.1 255.255.255.0
int l1
    ip add 11.0.1.1 255.255.255.0
int l2
    ip add 11.0.2.1 255.255.255.0
int l3
    ip add 11.0.3.1 255.255.255.0
int f0/0
    ip add 10.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 1.1.1.1 255.0.0.0
    no shut
router ospf 100
    net 11.0.0.0 0.0.0.255 area 10
    net 11.0.1.0 0.0.0.255 area 10
    net 11.0.2.0 0.0.0.255 area 10
    net 11.0.3.0 0.0.0.255 area 10
    net 1.0.0.0 0.255.255.255 area 10
    net 10.0.0.0 0.255.255.255 area 10
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R2
int l0
    ip add 12.0.0.1 255.255.255.0
int l1
    ip add 12.0.1.1 255.255.255.0
int l2
    ip add 12.0.2.1 255.255.255.0
int l3
    ip add 12.0.3.1 255.255.255.0
int f0/0
    ip add 20.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 1.1.1.2 255.0.0.0
    no shut
int s1/1
    ip add 2.2.2.1 255.0.0.0
    no shut
router ospf 100
    net 12.0.0.0 0.0.0.255 area 10
    net 12.0.1.0 0.0.0.255 area 10
    net 12.0.2.0 0.0.0.255 area 10
    net 12.0.3.0 0.0.0.255 area 10
    net 2.0.0.0 0.255.255.255 area 10
    net 20.0.0.0 0.255.255.255 area 10
    net 1.0.0.0 0.255.255.255 area 10
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R3
int l0
    ip add 13.0.0.1 255.255.255.0
int l1
    ip add 13.0.1.1 255.255.255.0
int l2
    ip add 13.0.2.1 255.255.255.0
int l3
    ip add 13.0.3.1 255.255.255.0
int f0/0
    ip add 30.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 2.2.2.2 255.0.0.0
    no shut
int s1/1
    ip add 3.3.3.1 255.0.0.0
    no shut
router ospf 100
    net 2.0.0.0 0.255.255.255 area 10
    net 30.0.0.0 0.255.255.255 area 10
    net 13.0.0.0 0.0.0.255 area 0
    net 13.0.1.0 0.0.0.255 area 0
    net 13.0.2.0 0.0.0.255 area 0
    net 13.0.3.0 0.0.0.255 area 0
    net 3.0.0.0 0.255.255.255 area 0
    passive-interface f0/0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
hostname R4
int l0
    ip add 14.0.0.1 255.255.255.0
int l1
    ip add 14.0.1.1 255.255.255.0
int l2
    ip add 14.0.2.1 255.255.255.0
int l3
    ip add 14.0.3.1 255.255.255.0
int f0/0
    ip add 40.1.1.1 255.0.0.0
    no shut
int s1/0
    ip add 3.3.3.2 255.0.0.0
    no shut
router rip
    version 2
    no auto-summary
    net 14.0.0.0
    net 14.0.1.0
    net 14.0.2.0
    net 14.0.3.0
    passive-interface l0
    passive-interface l1
    passive-interface l2
    passive-interface l3
router ospf 100
    net 40.0.0.0 0.255.255.255 area 0
    net 3.0.0.0 0.255.255.255 area 0
    redistribute rip subnets
    passive-interface f0/0

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       E1 - OSPF external type 1, E2 - OSPF external type 2

Gateway of last resort is not set
O     2.0.0.0/8 [110/128] via 1.1.1.2, 00:01:12, Serial1/0
O IA  3.0.0.0/8 [110/192] via 1.1.1.2, 00:00:12, Serial1/0
      12.0.0.0/32 is subnetted, 4 subnets
O        12.0.0.1 [110/65] via 1.1.1.2, 00:01:12, Serial1/0
O        12.0.1.1 [110/65] via 1.1.1.2, 00:01:12, Serial1/0
O        12.0.2.1 [110/65] via 1.1.1.2, 00:01:12, Serial1/0
O        12.0.3.1 [110/65] via 1.1.1.2, 00:01:12, Serial1/0
      13.0.0.0/32 is subnetted, 4 subnets
O IA     13.0.0.1 [110/129] via 1.1.1.2, 00:00:42, Serial1/0
O IA     13.0.1.1 [110/129] via 1.1.1.2, 00:00:42, Serial1/0
O IA     13.0.2.1 [110/129] via 1.1.1.2, 00:00:42, Serial1/0
O IA     13.0.3.1 [110/129] via 1.1.1.2, 00:00:42, Serial1/0
      14.0.0.0/24 is subnetted, 4 subnets
O E2     14.0.0.0 [110/20] via 1.1.1.2, 00:00:07, Serial1/0
O E2     14.0.1.0 [110/20] via 1.1.1.2, 00:00:07, Serial1/0
O E2     14.0.2.0 [110/20] via 1.1.1.2, 00:00:07, Serial1/0
O E2     14.0.3.0 [110/20] via 1.1.1.2, 00:00:07, Serial1/0
O     20.0.0.0/8 [110/65] via 1.1.1.2, 00:01:12, Serial1/0
O     30.0.0.0/8 [110/129] via 1.1.1.2, 00:00:42, Serial1/0
O IA  40.0.0.0/8 [110/193] via 1.1.1.2, 00:00:12, Serial1/0

Task 2 Link to heading

Configure Area 10 to stop LSA Type 5 and Type 4 (Stub Area).

Configuration Link to heading

R1(config)#
router ospf 100
area 10 stub
R2(config)#
router ospf 100
area 10 stub
R3(config)#
router ospf 100
area 10 stub

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       * - candidate default

Gateway of last resort is 1.1.1.2 to network 0.0.0.0
O*IA  0.0.0.0/0 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O     2.0.0.0/8 [110/128] via 1.1.1.2, 00:00:04, Serial1/0
O IA  3.0.0.0/8 [110/192] via 1.1.1.2, 00:00:04, Serial1/0
      12.0.0.0/32 is subnetted, 4 subnets
O        12.0.0.1 [110/65] via 1.1.1.2, 00:00:04, Serial1/0
O        12.0.1.1 [110/65] via 1.1.1.2, 00:00:04, Serial1/0
O        12.0.2.1 [110/65] via 1.1.1.2, 00:00:04, Serial1/0
O        12.0.3.1 [110/65] via 1.1.1.2, 00:00:04, Serial1/0
      13.0.0.0/32 is subnetted, 4 subnets
O IA     13.0.0.1 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O IA     13.0.1.1 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O IA     13.0.2.1 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O IA     13.0.3.1 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O     20.0.0.0/8 [110/65] via 1.1.1.2, 00:00:04, Serial1/0
O     30.0.0.0/8 [110/129] via 1.1.1.2, 00:00:04, Serial1/0
O IA  40.0.0.0/8 [110/193] via 1.1.1.2, 00:00:04, Serial1/0

Task 3 Link to heading

Configure Area 10 to stop LSA Type 5, Type 4 and Type 3 (Totally Stub Area).

Configuration Link to heading

R1(config)#
router ospf 100
area 10 stub
R2(config)#
router ospf 100
area 10 stub
R3(config)#
router ospf 100
area 10 stub no-summary

Verification Link to heading

R1# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       * - candidate default

Gateway of last resort is 1.1.1.2 to network 0.0.0.0
O*IA  0.0.0.0/0 [110/129] via 1.1.1.2, 00:00:35, Serial1/0
O     2.0.0.0/8 [110/128] via 1.1.1.2, 00:02:32, Serial1/0
      12.0.0.0/32 is subnetted, 4 subnets
O        12.0.0.1 [110/65] via 1.1.1.2, 00:02:32, Serial1/0
O        12.0.1.1 [110/65] via 1.1.1.2, 00:02:32, Serial1/0
O        12.0.2.1 [110/65] via 1.1.1.2, 00:02:32, Serial1/0
O        12.0.3.1 [110/65] via 1.1.1.2, 00:02:32, Serial1/0
O     20.0.0.0/8 [110/65] via 1.1.1.2, 00:02:32, Serial1/0
O     30.0.0.0/8 [110/129] via 1.1.1.2, 00:00:35, Serial1/0
R2# show ip route ospf
Codes: O - OSPF, IA - OSPF inter area
       * - candidate default

Gateway of last resort is 2.2.2.2 to network 0.0.0.0