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Using Network Utility

If you have trouble accessing the network, it is important to double-check that all the information you entered earlier in the Network pane is correct. Verify that you have a valid IP address and subnet mask and that the DNS entry is correct. An IP address that starts with 169.254 is self-assigned by Bonjour, which may not be what you wanted.

Network Utility (/Applications/Utilities) is a very valuable tool for testing network connectivity. You can use it to view network information and test network connectivity using commands such as Ping, Lookup, and Traceroute. The Info pane of Network Utility shows a quick interface overview. The left side has details about the interface itself, such as its MAC address, the assigned IP address, and its link speed. The right side shows packet transmission statistics.


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