ospf-ipv4 totally stubby area
LAB6: OSPF – IPv4
Disclaimer
This Configuration Guide is designed to assist members to enhance their skills in respective technology area.
LAB 6: Diagram
Note: This Lab was developed on Cisco IOS Version15.2(4) M1 ADVENTERPRISEK9-M.
LAB 6: OSPF Totally Stubby Area
Task 1: Configure OSPF Totally Stubby Area
In the configuration mode of router configure loopbacks with network address in sequence & redistribute these connected network in OSPF process
R1:
interface loopback 100
ip address 100.0.0.2 255.255.255.0
interface loopback 101
ip address 100.0.1.2 255.255.255.0
interface loopback 102
ip address 100.0.2.2 255.255.255.0
interface loopback 103
ip address 100.0.3.2 255.255.255.0
exit
R1:
router ospf 1
redistribute connected subnet metric-type 1
exit
R2#show ip route
! (Show router’s routing table and IPv4 routes entries)
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
Gateway of last resort is not set
O
O
O
C
L
C
L
C
L
C
L
C
L
O
O
O
O IA
O IA
O IA
O IA
O E1
O E1
O E1
O E1
Configure OSPF Stub
R3:
router ospf
area 2 stub no-summary
exit
R4:
router ospf 1
area 2 stub no-summary
exit
Task 2:
Verify routes on neighbor router routing table
R4#show ip route
! (Show router’s routing table and IPv4 routes entries)
Codes: L - local,
Gateway of last resort is 34.0.0.3 to network 0.0.0.0
O*IA
C
L
C
L
C
L
C
L
(Total Stubby area is area in which external routes LSA 5 and Inter-area routes LSA3/4 does not propagate, instead it automatically creates default route 0.0.0.0 towards ABR.)
R4#ping 100.0.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.0.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/9 ms
R4#ping 22.0.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 22.0.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/9 ms
