You can configure the UMS Server so that all devices in the server network are automatically registered during booting. In order to do this, the devices must be provided with the address of the UMS Server via DHCP or DNS.

We recommend automatic registration when registering new devices for the first time during the rollout. Disable automatic registration as soon as all devices have been registered.

To configure the UMS Server and devices for automatic registration, proceed as follows:

  1. Under UMS Administration > Global Configuration > Device Network Settings, select the Enable automatic registration (without MAC address import) checkbox.

    If this option is enabled, each device without a certificate in the network will be added to the UMS database. If you reset a device to the factory settings and reboot it, it will immediately be registered on the server again.
  2. Change the DHCP server configuration as follows, depending on the IGEL OS version of your endpoint devices:
    • IGEL OS 11.03.500 or lower: Set a DNS entry igelrmserver (Record Type A) or set igelrmserver as DHCP option 224. Set the DHCP option 224 as a string - not as DWORD - to the IP address of the server. For the standard Linux DHCP server, add the following to the dhcpd.conf file in the appropriate section, e.g. in the global area:
      option igelrmserver code 224 = text option igelrmserver ""
    • IGEL OS 11.04.100 or higher: As an alternative, you can use the DHCP option 43 (encapsulated vendor-specific options) to send the DHCP option 224 (name: "igelrmserver") to the right endpoint devices. An endpoint device with IGEL OS 11.04.100 or higher sends option 60 (vendor class identifier) with igel-dhcp-1 as the value.

      An IGEL specific DHCP option that is sent in DHCP option 43 overrides a corresponding DHCP option that is sent in the global namespace. The DHCP options 1, 224, and 226 can be embedded in option 43.

      You can prevent a DHCP option 224 that has been sent in the global namespace from being interpreted. To achieve this, you must add option 1 (called "exclusive", type Byte, value 1) to DHCP option 43.

  3. You should also set the igelrmserver DNS entry to the IP address of the UMS Server.