Q2 Refer to page 119 of the textbook to answer this question

Q2: Refer to page 119 of the textbook to answer this question. Modify the ACL in Figure 3-23 to incorporate the following rules:

No connection for Simple Mail Transfer Protocol (SMTP) applications should be allowed.

Add access to a Simple Mail Transfer Protocol over TLS/SSL (SMTPS) server with IP

address 10.53.44.87.

Add access to Telnet services on the existing Web server.

Add access to a Microsoft REAL SQL Server with IP address 10.28.30.52

Chapter 3 Network Security 119 Rule Destination IP Address or Range Service Action Allow connection 25 10.47.122.79 80 Allow connection ALL ALL Do not allow connection Note: ACLs are only applied to packets that attempt to open a connection. FIGURE 3 Access Control List (ACLI for Attempts to Open a Connection

Solution

Rule Ip Address Port/Service Action 1 ALL 25 Do not allow Connection 2 10.53.44.87 587 Allow 3 10.53.44.87 465 Allow 4 10.47.122.79 80 Allow 5 10.47.122.79 23 Allow 6 10.28.30.52 1433 Allow