Scenario:
A customer network engineer has edited their OSPF network configuration and now your customer
is experiencing network issues. They have contacted you to resolve the issues and return the
network to full functionality.
The 6.6.0.0 subnets are not reachable from R4. how should the problem be resolved?
A.
Edit access-list 46 in R6 to permit all the 6.6.0.0 subnets
B.
Apply access-list 46 in R6 to a different interface
C.
Apply access-list 1 as a distribute-list out under router ospf 100 in R4
D.
Remove distribute-list 64 out on R6
E.
Remove distribute-list 1 in ethernet 0/1 in R4
F.
Remove distribute-list 1 in ethernet 0/0 in R4
Explanation:
Here we see from the running configuration of R6 that distribute list 64 is being used in the
outbound direction to all OSPF neighbors.However, no packets will match the 6.6.0.0 in this access list because the first line blocks all
6.0.0.0 networks, and since the 6.6.0.0 networks will also match the first line of this ACL, these
OSPF networks will not be advertised because they are first denied in the first line of the ACL.
