CCNA(Stand-ALONE)Lab 17-Connectivity Tests With Traceroute
2008-04-18 15:45:01
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Objective: Learn how to use the traceroute command. This command is used to map the IP addresses that a packet travels through to get from one device to another.
Lab Equipment: Router 1, Router 2, and Router 4 from the eRouters menu 1. configure Routers 1, 2, and 4 to the specifications outlined in the table below.  Router1:
 Router2:
 Router4:
 2. After you have configured the proper IP addresses, enable RIP routing across all three routers. Make sure you use the proper network statements. Router1#conf t Router1(config)#router rip Router1(config-router)#network 192.168.1.0 Router1(config-router)#network 192.168.2.0 Router1(config-router)#exit Router1(config)#exit Router1#  Router2#config t Router2(config)#router rip Router2(config-router)#network 192.168.1.0 Router2(config-router)#exit Router2(config)#exit Router2#  Router4#config t Router4(config)#router rip Router4(config-router)#network 192.168.2.0 Router4(config-router)#exit Router4(config)#exit Router4#  3. From Router1, ping the directly connected routers and their interfaces, which are Router2 Ethernet 0 and Router4 serial 0. Router1#ping 192.168.1.2 Router1#ping 192.168.2.2  4. Because RIP routing is enabled, you should be able to ping non-directly connected routers. Connect to Router2, and ping Router4’s serial 0 interface. Router2#ping 192.168.2.2  5. The goal behind the traceroute command is to help you troubleshoot and determine the path a packet is taking to reach a destination device. In this example, there are three routers and only one path to any destination. Trace the route from Router2 to Router4’s serial 0 interface. Router2#traceroute 192.168.2.2  6. Observe the output from the traceroute command. It lists Router1’s Ethernet 0 IP address and then the destination IP address. This means that the packet leaves Router2’s Ethernet 0 interface and passes through Router1’s Ethernet 0 interface before reaching Router4’s serial 0 interface. ***************************************************
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