Default Data Settings
When a new or defaulted control unit is switched on, it requests IP address information from a DHCP Server on the network. This operation will occur whether the LAN cable is plugged in or not.
If a DHCP server responds within approximately 10 seconds, the control unit defaults to being a DHCP client and uses the IP address information supplied by the DHCP server.
If no DHCP Server responds, the control unit still defaults to being the DHCP client but assumes the following default LAN addresses:
For its LAN1 it allocates the IP address 192.168.42.1 and IP Mask 255.255.255.0.
For its LAN2 if supported, it allocates the IP address 192.168.43.1 and IP Mask 255.255.255.0.
Once a control unit has obtained IP address and DHCP mode settings, it will retain those settings even if rebooted without a configuration file present on the System SD card. To fully remove the existing IP address and DHCP mode setting, the system must be defaulted using Manager.