Canon EOS Rebel SL3 DSLR Camera with 18-55mm Lens (Black) - Manual (Page 442)

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Checking Network Settings
z Windows
Open the Windows [Command Prompt] , then type ipconfig/all and
press the < Enter > key.
In addition to the IP address assigned to the computer, the subnet
mask, gateway, and DNS server information are also displayed.
z Mac OS
In Mac OS X, open the [Terminal] application, enter ifconfig -a, and
press the < Return > key. The IP address assigned to the computer is
indicated in the [en0] item next to [inet] , in the format “***.***.***.***”.
* For information about the [Terminal] application, refer to the Mac OS X help.
To avoid using the same IP address for the computer and other devices on
the network, change the rightmost number when setting up the IP address
assigned to the camera in the processes described on = 408.
Example: 192.168.1.10