Click and drag the command line tools used to troubleshoot the network problems on the left to their associated functions on the right. Not all commands may be used.
Select and Place:
The following commands can be used to troubleshoot network connectivity problems:
ping 127.0.0.1: This command will attempt to contact the local TCP/IP protocol stack. The 127.0.0.1 address is the reserved loopback IP address, which allows applications to
communicate with the local system without using an actual IP address assigned to an interface, such as a workstations Ethernet port. Thus, this command allows you to ping
yourself?, and if successful, only verifies that TCP/IP is running locally. It does not confirm that the system can communicate with any other host on the network.
telnet: Telnet is a network application used to establish a remote terminal connection to a host, such as logging in remotely to a Cisco router or switch via TCP/IP. Since network
applications reside on the OSI Application Layer (Layer 7), a successful Telnet connection to a remote has confirms that there is network connectivity through Layer 7.
arp? a: This command is used to display the local IP address to MAC address mappings on a Windows PC.
traceroute: This command is used on a Cisco router or switch to verify, or trace, the path that IP packets will take towards a particular destination.
tracert: This command is used on a Windows PC to verify, or trace, the path that IP packets will take towards a particular destination.
show ip arp: This command is used to display the local IP address to MAC address mappings on a Cisco router or switch.
Configure, verify, and troubleshoot EIGRP for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub)
Cisco > Support > Troubleshooting Tools
Cisco > Articles > Cisco Certification > CCNP > Shooting Trouble with IP