System Administration Guide, Volume 3

How to Check Connectivity

Use the ping command to verify that the connection is up or can be established. For example, consider the following simple round-trip test:

  1. Become superuser.

  2. Type:


    # ping elvis
    

    where elvis is the name of the PPP interface on the remote host. If the resulting display is


    elvis is alive

    then packets can be sent to and received from elvis. If not, a routing problem exists at some point between the local and remote hosts. For more information on ping, refer to "ping Command" and the ping(1M) man page.