use the packet trace tool to track the status of a data packet or communications stream as it moves from source to destination. this is a useful tool to determine if a packet or communications stream is being stopped at the internet firewall, or is lost on the internet.

    select packet trace from the choose a diagnostic tool drop-down list. a window similar to that in figure 26 is displayed.

    figure 26 packet trace window

   

    packet trace requires an ip address. use the internet firewall’s dns name lookup tool to find the ip address of a host.

    1 enter the ip address of the remote host in the trace on ip address box, and click start.

    2 initiate an ip session with the remote host using an ip client, such as web, ftp, or telnet.

    use the ip address in the trace on ip address box, not a host name, such as www.3com.com.

    3 click refresh to display the packet trace information.

    4 click stop to terminate the packet trace, and reset to clear the results.