Case study. Some notices from above configuration: +The OSPF network type berween R2&R3 is non broadcast. Q1: Show ip
Posted: Fri Jul 22, 2022 3:42 pm
Case study.
Some notices from above configuration:
+The OSPF network type berween R2&R3 is non broadcast.
Q1: Show ip ospf database -
Q2: Show ip ospf interface serial 1/0
Q3: Show ip ospf -
Q4: Show ip route -
You have been asked to evaluate an OSPF network and to answer questions a customer has about its operation. Note: You are not allowed to use the show command. running-config
Although in this sim we are not allowed to use "show running-config" command but we post the configuration here so that you can understand more about the topology.
R1 -
interface Loopback0
ip address 1.1.1.1 255.255.255.255
no shut
interface Serial0/0
ip address 192.168.13.1 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 1.1.1.1 0.0.0.0 area 0
_______________________________________
R2 -
interface Loopback 0
ip address 2.2.2.2 255.255.255.255
no shut
interface S0/0
ip address 192.168.23.2 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.23.0 0.0.0.255 area 0
network 2.2.2.2 0.0.0.0 area 0
neighbor 192.168.23.3
_________________________________________________
R3 -
interface Loopback 0
ip address 3.3.3.3 255.255.255.255
no shut
interface fa0/0
ip address 192.168.34.3 255.255.255.0
no shut
interface S0/1
ip address 192.168.23.3 255.255.255.0
ip ospf network non-broadcast
no shut
interface S0/0
ip address 192.168.13.3 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 192.168.23.0 0.0.0.255 area 0
network 192.168.34.0 0.0.0.255 area 1
network 3.3.3.3 0.0.0.0 area 0
area 1 virtual-link 4.4.4.4
neighbor 192.168.23.2
_______________________________________________________________
R4 -
interface Loopback 0
ip address 4.4.4.4 255.255.255.255
interface FastEthernet0/0
ip address 192.168.34.4 255.255.255.0
interface Fa0/1
ip address 192.168.45.4 255.255.255.0
no shut
interface Fa1/0
ip address 192.168.46.4 255.255.255.0
no shut
router ospf 1
network 192.168.34.0 0.0.0.255 area 1
network 192.168.45.0 0.0.0.255 area 2
network 192.168.46.0 0.0.0.255 area 3
network 4.4.4.4 0.0.0.0 area 1
area 1 virtual-link 3.3.3.3
area 2 nssa
area 3 stub no-summary
_________________________________________________________________
R5 -
interface Loopback0
ip address 5.5.5.5 255.255.255.255
interface Loopback1
ip address 5.5.1.1 255.255.255.255
interface Loopback2
ip address 5.5.2.1 255.255.255.255
interface Loopback3
ip address 5.5.3.1 255.255.255.255
interface Loopback4
ip address 5.5.4.1 255.255.255.255
no shut
interface Fa0/0
ip address 192.168.45.5 255.255.255.0
no shut
router ospf 1
network 192.168.45.0 0.0.0.255 area 2
network 5.5.0.0 0.0.255.255 area 2
area 2 nssa
_______________________________________________
R6 -
interface Fa0/0
ip address 192.168.46.6 255.255.255.0
no shut
interface Loopback 0
ip address 6.6.6.6 255.255.255.255
no shut
router ospf 1
network 192.168.46.0 0.0.0.255 area 3
network 6.6.6.6 0.0.0.0 area 3
area 3 stub
How old is the Type 4 LSA from Router 3 for area 1 on the router R5 based on the output you have examined?
A. 1858
B. 1601
C. 600
D. 1569
Some notices from above configuration:
+The OSPF network type berween R2&R3 is non broadcast.
Q1: Show ip ospf database -
Q2: Show ip ospf interface serial 1/0
Q3: Show ip ospf -
Q4: Show ip route -
You have been asked to evaluate an OSPF network and to answer questions a customer has about its operation. Note: You are not allowed to use the show command. running-config
Although in this sim we are not allowed to use "show running-config" command but we post the configuration here so that you can understand more about the topology.
R1 -
interface Loopback0
ip address 1.1.1.1 255.255.255.255
no shut
interface Serial0/0
ip address 192.168.13.1 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 1.1.1.1 0.0.0.0 area 0
_______________________________________
R2 -
interface Loopback 0
ip address 2.2.2.2 255.255.255.255
no shut
interface S0/0
ip address 192.168.23.2 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.23.0 0.0.0.255 area 0
network 2.2.2.2 0.0.0.0 area 0
neighbor 192.168.23.3
_________________________________________________
R3 -
interface Loopback 0
ip address 3.3.3.3 255.255.255.255
no shut
interface fa0/0
ip address 192.168.34.3 255.255.255.0
no shut
interface S0/1
ip address 192.168.23.3 255.255.255.0
ip ospf network non-broadcast
no shut
interface S0/0
ip address 192.168.13.3 255.255.255.0
ip ospf network non-broadcast
no shut
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 192.168.23.0 0.0.0.255 area 0
network 192.168.34.0 0.0.0.255 area 1
network 3.3.3.3 0.0.0.0 area 0
area 1 virtual-link 4.4.4.4
neighbor 192.168.23.2
_______________________________________________________________
R4 -
interface Loopback 0
ip address 4.4.4.4 255.255.255.255
interface FastEthernet0/0
ip address 192.168.34.4 255.255.255.0
interface Fa0/1
ip address 192.168.45.4 255.255.255.0
no shut
interface Fa1/0
ip address 192.168.46.4 255.255.255.0
no shut
router ospf 1
network 192.168.34.0 0.0.0.255 area 1
network 192.168.45.0 0.0.0.255 area 2
network 192.168.46.0 0.0.0.255 area 3
network 4.4.4.4 0.0.0.0 area 1
area 1 virtual-link 3.3.3.3
area 2 nssa
area 3 stub no-summary
_________________________________________________________________
R5 -
interface Loopback0
ip address 5.5.5.5 255.255.255.255
interface Loopback1
ip address 5.5.1.1 255.255.255.255
interface Loopback2
ip address 5.5.2.1 255.255.255.255
interface Loopback3
ip address 5.5.3.1 255.255.255.255
interface Loopback4
ip address 5.5.4.1 255.255.255.255
no shut
interface Fa0/0
ip address 192.168.45.5 255.255.255.0
no shut
router ospf 1
network 192.168.45.0 0.0.0.255 area 2
network 5.5.0.0 0.0.255.255 area 2
area 2 nssa
_______________________________________________
R6 -
interface Fa0/0
ip address 192.168.46.6 255.255.255.0
no shut
interface Loopback 0
ip address 6.6.6.6 255.255.255.255
no shut
router ospf 1
network 192.168.46.0 0.0.0.255 area 3
network 6.6.6.6 0.0.0.0 area 3
area 3 stub
How old is the Type 4 LSA from Router 3 for area 1 on the router R5 based on the output you have examined?
A. 1858
B. 1601
C. 600
D. 1569