TAILIEUCHUNG - Lab 4.2.2 Establishing and Verifying a Telnet Connection

This lab focuses on the Telnet (remote terminal) utility to access routers remotely. Telnet is used to connect from a local router to another remote router in order to simulate being at the console on the remote router. The local router acts as a Telnet client and the remote router acts as a Telnet server. Telnet is a good testing or troubleshooting tool since it is an application layer utility. A successful Telnet demonstrates that the entire TCP/IP protocol stack on both the client and server are functioning properly. Telnet from the workstation as a client into any router with. | Cisco Systems I Lab Establishing and Verifying a Telnet Connection Objective Establish a Telnet connection to a remote router. Verify that the application layer between source and destination is working properly. Retrieve information about remote routers using show commands. Retrieve CDP information from routers not directly connected. Background Preparation This lab focuses on the Telnet remote terminal utility to access routers remotely. Telnet is used to connect from a local router to another remote router in order to simulate being at the console on the remote router. The local router acts as a Telnet client and the remote router acts as a Telnet server. Telnet is a good testing or troubleshooting tool since it is an application layer utility. A successful Telnet demonstrates that the entire TCP IP protocol stack on both the client and server are functioning properly. Telnet from the workstation as a client into any router with IP connectivity on the network. In addition telnet into an Ethernet switch if an IP address has been assigned. Cable a network similar to the one in the previous diagram. Any router that meets the interface requirements may be used. Possible routers include 800 1600 1700 2500 2600 routers or a combination. Refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in the lab. The configuration output used in this lab is produced from 1 - 5 CCNA 2 Routers and Routing Basics v - Lab Copyright 2003 Cisco Systems Inc. 1721 series routers. Any other router used may produce slightly different output. The following steps are intended to be executed on each router unless specifically instructed otherwise. Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab. Note Go to the erase and reload instructions at the end of this lab. Perform those steps on all routers in this lab assignment before continuing. Step 1 Configure the routers

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