2-6Solutionz Check that the IPv6 addresses are configured correctly.z Use the display ipv6 interface command to determine the interfaces of the source and thedestination and the link-layer protocol between them are up.z Use the display ipv6 route-table command to verify that the destination is reachable.z Use the ping ipv6 -t timeout { destination-ipv6-address | hostname } [ -i interface-typeinterface-number ] command to increase the timeout time limit, so as to determine whether it is dueto the timeout limit is too small.Unable to Run TracerouteSymptomUnable to trace the route by performing traceroute operations.Solutionz Check that the destination host can be pinged.z If the host can be pinged through, check whether the UDP port that was included in the tracert ipv6command is used by an application on the host. If yes, you need to use the tracert ipv6 commandwith an unreachable UDP port.Unable to Run TFTPSymptomUnable to download and upload files by performing TFTP operations.Solutionz Check that the route between the device and the TFTP server is up.z Check that the file system of the device is usable. You can check it by running the dir command inuser view.z Check that the ACL configured for the TFTP server does not block the connection to the TFTPserver.Unable to Run TelnetSymptomUnable to login to Telnet server by performing Telnet operations.Solutionz Check that the Telnet server application is running on the server. Check the configuration allowsthe server reachable.z Check that the route between the device and the TFTP server is up.
