Information Technology Reference
In-Depth Information
If there are any problems with the OSPF configuration, record any commands that will be
necessary to correct the configuration errors.
router OSPF 1
no network 10.10.0.0 0.0.7.255 area 0
network 10.10.0.0 0.0.3.255 area 0
default-information originate
Are there any problems on the HQ router that could be due to errors on other parts of the
network?
The link between the HQ and Branch2 routers is not in the routing table.
The Branch2 router is not in the OSPF neighbor table.
The Serial 0/0/1 interface on the Branch2 router should be checked.
If you have recorded any commands in the previous step, apply them to the router configu-
ration now.
Step 6.
View the routing information.
Step 7.
If any changes were made to the configuration in the previous steps, view the routing
information again.
Does the information in routing table indicate any configuration errors on the HQ router?
no
If the answer is yes , troubleshoot the routing configuration again.
Attempt to ping between the hosts again.
Step 8.
From the host PC2, is it possible to ping PC1? yes
From the host PC2, is it possible to ping PC3? yes
From the host PC2, is it possible to ping the Serial 0/0/0 interface of the Branch2 router?
yes
From the host PC2, is it possible to ping the Serial 0/0/1 interface of the Branch2 router?
no
Task 5: Troubleshoot the Branch2 Router
Begin troubleshooting at the host PC3.
Step 1.
From the host PC3, is it possible to ping PC1? yes
From the host PC3, is it possible to ping PC2? yes
From the host PC3, is it possible to ping the default gateway? yes
From the host PC3, is it possible to ping the Serial 0/0/1 interface of the Branch2 router?
no
Examine the Branch2 router to find possible configuration errors.
Step 2.
Begin by viewing the summary of status information for each interface on the router.
Are there any problems with the status of the interfaces?
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