To provide more protection, the rule set from the preceding problem is modified

Question

To provide more protection, the rule set from the preceding problem is modified as follows:


Rule Direction    Src Addr       Dest Addr     Protocol    Src Port     Dest Port          Action
A      In              External        Internal       TCP           >1023       25                      Permit
B      Out           Internal         External       TCP           25             >1023                Permit
C      Out           Internal         External       TCP           >1023         25                    Permit
D      In              External       Internal        TCP            25            >1023                Permit
E      Either        Any              Any              Any            Any            Any                  Deny


a. Describe the change
b. Apply this new rule set to the same six packets of the preceding problem. Indicate which packets are permitted or denied and which rule is used in each case

Explanation / Answer

provide more protection, the rule set from the preceding problem is modified as follows:

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