Scenarios: Packet rules

Use these scenarios to learn how you can use network address translation (NAT) and IP filtering to protect your network.

• Scenario: Map IP addresses using NAT
  In this scenario, your company uses static network address translation (NAT) to map its private IP addresses to public addresses.
• Scenario: Create filter rules to allow HTTP, Telnet, and FTP
  In this scenario, your company uses IP filtering to restrict the IP traffic that can access its Web server to HTTP, Telnet, and FTP.
• Scenario: Combine NAT and IP filtering
  In this scenario, your company combines network address translation (NAT) and IP filtering together. Your company wants to hide its personal computers and Web server behind a single, public, IP address and to allow other companies to access the Web server.
• Scenario: Hide IP addresses using masquerade NAT
  In this scenario, your company uses masquerade network address translation (NAT) to hide the private addresses of your personal computers. At the same time, your company allows your employees to access the Internet.