By default, the Spacemap Go system uses IPv6 addresses for connection between GALAXY processors and iPads. IPv4 addresses can be enabled for networks that will not allow IPv6 traffic or for external control from devices that only use IPv4 address.
IPv6 addressing is used when a Spacemap Go system is initially configured. After configuration, an IPv4 address for a Spacemap System can be entered in the app’s SETTINGS > EXTERNAL DEVICE CONNECTION tab, enabling IPv4 communication. By default, this field is empty, and the system will not request an IPv4 address from DHCP server.
For additional information, see FAQ: Is the IPv4 address shown in Compass the IPv4 address of the GALAXY processor?