Canon EOS-1D X Mark III Advanced User's Manual page 590

Setting the IP Address
Instructions in this section are continued from
Select a method of setting the IP address, and then set the IP address on the camera. When
IPv6 is used, the camera only connects via IPv6. IPv4 connections are disabled.
Setting the IP address automatically
Set up the IP address settings automatically.
1.
Select [Auto setting].
2.
Select an IPv6 option.
Select [OK].
If an error is displayed for [Auto setting], set the IP address manually
( ).
Select an option and then [OK] to go to the next screen.
When selecting [Enable], configure IPv6 settings after all settings are
complete ( ).
The next screen is displayed after settings are complete.
settings used for access point
590
connections.