Access-lists pose a logical problem which often has more than one solution. Can you think of a different set of rules or placements that would yield the same required access filtering?

Question is incomplete. it needs a topology diagram and also it needs Router R1 table. I assume User has access to the topology and Routing table.

Below Configuration will help to fix ACL problem

Hosts from the 172.16.0.0/16 network should have full access to Server1, Server2 and Server3 but this is not currently the case, as L1 can’t communicate to Server2 or Server3.

Explanation:

Following Configuration on Cisco Router R1 will help to fix all the ACL problems.

enable

configure terminal

no ip access-list standard FROM_10

ip access-list standard FROM_10

deny host 10.0.0.2

permit any

exit

!

no ip access-list standard FROM_172

ip access-list standard FROM_172

permit host 172.16.0.2

exit

!

interface GigabitEthernet0/0

ip access-group FROM_192 out

end

write memory

!

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