Test Connectivity Type the IP address of the host you want to test and press Return. If you have access to a Domain Name Server (DNS), you can type a DNS host name like "www.apple.com" in the name field and press Return. To lookup a name or address, type the name or address in the corresponding field and press Lookup (the small magnifying glass next to the name field). Network connections are tested by sending an echo request packet and waiting to receive an echo response (ICMP echo test, often called "ping"). If a lookup fails unexpectedly, the Log Window may provide more information. "Limit" specifies the number packets to send for this test. If Limit is zero or blank, the test will continue indefinitely. "Delay" specifies the delay in seconds between sending packets. If you have Internet Config installed, you can make IPNetMonitor a helper application for URLs of the form or (where the last two numbers specify the Limit and Delay if present). You can test a range of IP addresses by entering two addresses separated by a hyphen. for example. The results of each test are recorded in the Log Window. When you invoke one window from another, the corresponding data is automatically transferred. Invoke the Trace Route window from the Window menu (Cmd-R) to begin a Trace Route to this same IP Address. Invoke the Subnet Calculator (Cmd-S) to transfer the IP Address to the Subnet Calculator. Keyboard Shortcuts: Cmd-Period Abort a test or lookup in progress Cmd-R Trace Route to this same address Cmd-S Transfer address to Subnet Calculator Cmd-T Open another Test Connectivity window Cmd-1 Launch telnet GURL to this same address Tab Move between fields Cmd-U Lookup