Your LAN network is protected by a Firewall:

Write the appropriate filtering rules for the below security policies.

Security policy # 1:

Only the external host IP-6 can access the internal Telnet server (IP-9), running on port TCP/23.

Answer:

Security policy # 2:

External hosts are allowed to access the internal standard Web and Email servers (IP-1 and IP-2), except the external host (IP-3). The two servers are running on standard ports. The default security policy is "Deny All".

Answers:

Security policy # 3 :

Internal hosts are NOT allowed to communicate with the external standard Web server (TCP/80) (IP-5).

Answer:

Security policy # 4 :

The external host (IP-6) is allowed to Ping the internal host (IP-10). However, the external host (IP-7) is NOT allowed to Ping that host. The default security policy is "Deny All".

Answer: