04-25-2020 04:22 PM
So I tried to configure OSPF for the routers but still there is no connectivity. Here are the configurations:
R1
en
config t
int f0/0
ip add 100.100.10.1 255.255.255.0
no shutdown
exit
int s0/1
ip add 10.10.10.49 255.255.255.252
clock rate 64000
no shutdown
exit
router ospf 1
network 100.10.10.0 0.0.0.255 area 1
network 10.10.10.48 0.0.0.3 area 0
exit
exit
copy run start
R2
en
config t
int f0/0
ip add 100.100.20.1 255.255.255.0
no shutdown
exit
int s0/1
ip add 20.20.20.53 255.255.255.252
clock rate 64000
no shutdown
exit
int s0/0
ip add 10.10.10.50 255.255.255.252
no shutdown
exit
router ospf 1
network 100.10.20.0 0.0.0.255 area 0
network 10.10.10.48 0.0.0.3 area 0
network 20.20.20.52 0.0.0.3 area 0
exit
exit
copy run start
R3
en
config t
int f0/0
ip add 40.40.40.61 255.255.255.252
no shutdown
exit
int s0/1
ip add 30.30.30.57 255.255.255.252
clock rate 64000
no shutdown
exit
int s0/0
ip add 20.20.20.54 255.255.255.252
no shutdown
exit
router ospf 1
network 20.20.20.52 0.0.0.3 area 0
network 40.40.40.60 0.0.0.3 area 3
network 30.30.30.56 0.0.0.3 area 2
exit
exit
copy run start
R4
en
config t
int f0/0
ip add 100.100.40.1 255.255.255.0
no shutdown
exit
int s0/0
ip add 30.30.30.58 255.255.255.252
no shutdown
exit
router ospf 1
network 100.100.40.0 0.0.0.255 area 2
network 30.30.30.56 0.0.0.3 area 2
exit
exit
copy run start
R5
en
config t
int f0/0
ip add 100.100.30.1 255.255.255.0
no shutdown
exit
int f1/1
ip add 40.40.40.62 255.255.255.252
no shutdown
exit
router ospf 1
network 100.100.30.0 0.0.0.255 area 3
network 40.40.40.60 0.0.0.3 area 3
exit
exit
copy run start
Solved! Go to Solution.
04-25-2020 04:37 PM
04-26-2020 04:36 AM
Its because you have advertised incorrect network on R1 and R2 for PC1 and PC2
You have 100.100.10.0/24 and 100.100.20./24 but you advertised 100.10.10.0/24 and 100.10.20.0/24
Router(config)#do sh run | s os hostname Router router ospf 1 log-adjacency-changes network 100.10.20.0 0.0.0.255 area 0 network 10.10.10.48 0.0.0.3 area 0 network 20.20.20.52 0.0.0.3 area 0 Router(config)#
Advertised the correct networks and the ping between PC1 and PC2 works
04-25-2020 04:37 PM
04-25-2020 05:29 PM - edited 04-25-2020 05:30 PM
it looks to be working ..
what is source and destination of ping?
04-25-2020 09:07 PM - edited 04-25-2020 09:07 PM
The connectivity between R1 and R2 is not patched somehow.
Thanks for the help in advance.
04-26-2020 04:36 AM
Its because you have advertised incorrect network on R1 and R2 for PC1 and PC2
You have 100.100.10.0/24 and 100.100.20./24 but you advertised 100.10.10.0/24 and 100.10.20.0/24
Router(config)#do sh run | s os hostname Router router ospf 1 log-adjacency-changes network 100.10.20.0 0.0.0.255 area 0 network 10.10.10.48 0.0.0.3 area 0 network 20.20.20.52 0.0.0.3 area 0 Router(config)#
Advertised the correct networks and the ping between PC1 and PC2 works
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