TAILIEUCHUNG - Lab 1.1.4b Configuring NAT

Aidan McDonald has just received a DSL line Internet connection to a local ISP in his home. The ISP has allocated only one IP address to be used on the serial port of his remote access device. Routing between the ISP and the home router is done using a static route between the ISP and the gateway routers, and a default route between the gateway and the ISP routers. The ISP connection to the Internet will be represented by a loopback address on the ISP router. | Cisco SrsTEMS Lab Configuring NAT Router Designation Router Name FastEthernet 0 Address Subnet Mask Interface type Serial 0 Address Loopback 0 Address Subnet mask Enable Secret Password Enable VTY Console passwords Router 1 Gateway 24 DCE 30 NA class cisco Router 2 ISP NA DTE 30 32 class cisco Straight-through cable Serial cable Console rollover Crossover cable Objective Configure a router to use Port Address Translation PAT to convert internal IP addresses typically private addresses into an outside public address. Background Preparation Aidan McDonald has just received a DSL line Internet connection to a local ISP in his home. The ISP has allocated only one IP address to be used on the serial port of his remote access device. Routing between the ISP and the home router is done using a static route between the ISP and the gateway routers and a default route between the gateway and the ISP routers. The ISP connection to the Internet will be represented by a loopback address on the ISP router. Cable a network similar to the one in the diagram. Any router that meets the interface requirements displayed on the above diagram may be used. This includes the following and any of their possible combinations 800 series routers 1600 series routers 1700 series routers 2500 series routers 1 - 6 CCNA 4 WAN Technologies v - Lab Copyright 2003 Cisco Systems Inc. 2600 series routers Please refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in this lab. The configuration output used in this lab is produced from 1721 series routers. Any other router used may produce slightly different output. Conduct the following steps on each router unless specifically instructed otherwise. Start a HyperTerminal session. Note Refer to the erase and reload instructions at the end of this lab. Perform those steps on all routers in this lab assignment before .

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