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Network Address Translation – Port Address Translation and Port Forwarding

By arfs -
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Routers Used: 2621 w/ CISCO2600-MB-2FE and WIC-2T modules IOS: c2600-i-mz.121-5.T9 Objective In this lab, Port Address Translation (PAT) and port forwarding are configured. Scenario The International Travel Agency is planning to launch an informational Web site on a local Webserver for the general public. However, the one Class C address that has been allocated will not be sufficient for the users and devices the company has on this network. Therefore, a network is configured that will allow all internal company users access to the Internet and all Internet users access to the company’s informational Web server through static NAT and PAT. Internal user addresses must be translated to one legal global address and all Internet Users must access the informational Web server through the one legal global address as well. Step 1 Build and configure the network according to the diagram. If you are using the configuration files from the previous lab, remove the NAT pool (public) and the stati...
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Network Address Translation – Static NAT and Dynamic NAT

By arfs -
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Routers Used: 2621 w/ CISCO2600-MB-2FE and WIC-2T modules IOS: c2600-i-mz.121-5.T9 Objective In this lab, static Network Address Translation (NAT) and dynamic NAT are configured. Scenario The International Travel Agency needs approximately 100 private IP addresses translated in a oneto-one fashion with a pool of public IP addresses. To do this, ITA will use NAT translation with a portion of its class C address space allocated by ISP. Step 1 Build and configure the network according to the diagram. Use ping to test connectivity between the NAT and ISP routers, between the workstations and the default gateway, and between SERVER and ISP. Step 2 Since no routing protocol will be enabled, configure a default route to the Internet on the NAT router: NAT(config)#ip route 0.0.0.0 0.0.0.0 200.200.100.2 ISP needs to be able to reach hosts on the 192.168.0/24 network. But these hosts will have their IP addresses translated to public IP addresses in the 200.200.100.128/25 network, so a static ro...
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