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Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide by Wendell Odom

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Chapter 4. Troubleshooting IPv4 Routing Part I

This chapter covers the following exam topics:

Troubleshooting

Identify and correct common network problems

Troubleshoot and resolve routing issues

routing is enabled

routing table is correct

correct path selection

IPv4 routing requires the cooperation of hosts and routers. Hosts first create IPv4 packets and send those packets to some nearby router (the host’s default router, or default gateway). The router then makes a routing decision of where to forward the IPv4 packet next and sends the packet over the next physical link. Each router that receives the IPv4 packet repeats the process, until the packet finally arrives at the destination host.

This chapter focuses on how to troubleshoot problems ...

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