ICND2 3.0: Troubleshooting IPv4 Networks

Anyone who is looking to expand their knowledge and skills of routing and switching with Cisco IOS products and/or needs to prepare for the Cisco ICND2 v3.0 certification exam


Expected Duration
163 minutes

Being able to troubleshoot issues related to end-to-end connectivity is an essential skill to have. Knowing which tools to use and how they will identify the potential issue is key to your troubleshooting success. In this course you will examine tools such as ping, traceroute, telnet, IP SLA, and SPAN. You will also explore how the ARP cache, MAC address table, and routing table can assist with your troubleshooting endeavors. In addition, you will have the opportunity to troubleshoot ACL issues. This course is one of a series in the Skillsoft learning path that covers the objectives for the Cisco exam Interconnecting Cisco Network Devices Part 2 (200-105 ICND2). This exam counts toward the CCNA Routing and Switching certification.


Troubleshooting IPv4 Networks

  • start the course
  • troubleshoot guidelines
  • identify if End-to-end connectivity is successful using Ping
  • use Ping to verify End-to-end connectivity
  • automate connectivity testing using IP SLA
  • troubleshoot connectivity testing using IP SLA
  • use Traceroute to verify the data path
  • use Telnet to verify connectivity
  • identify if the ARP process is resolving MAC addresses to known IP addresses
  • identify if a switch is populating its MAC address table and forwarding frames out the appropriate ports
  • identify the issues that affect physical connectivity between devices
  • verify the issues that affect physical connectivity between devices
  • determine the issues that affect physical connectivity between devices
  • compare the current and desired path for traffic
  • identify the current and desired path for traffic
  • configure and verify SPAN for monitoring traffic
  • identify default gateway issues
  • identify name resolution issues
  • configure Extended ACLs
  • verify Extended ACLs
  • configure and verify Extended ACLs for filtering
  • identify and resolve ACL issues
  • verify an IPv4 connectivity issue
  • solve an IPv4 connectivity issue
  • decipher an IPv4 connectivity issue
  • verify IPv4 connectivity issues
  • solve IPv4 connectivity issues





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