You can use network address translation (NAT)
and IP filtering to protect your network.
Tip: In each scenario, the
192.x.x.x IP addresses represent public IP addresses. All addresses are for example purposes only.
- Scenario: Mapping 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: Creating filter rules to allow HTTP, Telnet, and FTP traffic
In this scenario, your company uses IP filtering to restrict the IP traffic that can access its Web server to only HTTP, Telnet, and File Transfer Protocol (FTP) traffic.
- Scenario: Combining 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 wants to allow other companies to access the Web server.
- Scenario: Hiding 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 enables your employees to access the Internet.
Parent topic:
IP filtering and network address translation