HP Device Manager 4.6 Administrator Guide

3 Device discovery
Devices must be discovered (added to the HPDM asset database) by HPDM before they can be
managed. See the following sections for information on different methods of device discovery:
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Automatic registration (normal thin clients)
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Automatic registration (PCoIP zero clients)
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Searching for devices
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Manually registering a device
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Manually registering multiple devices
Automatic registration (normal thin clients)
When the device is attached to your network, its HPDM Agent will try the following methods to
automatically register it with the HPDM Server. The HPDM Agent works through these methods in
this order and stops as soon as one is successful.
If the HPDM Agent loses contact with its current HPDM Gateway or the device is rebooted, the
automatic registration process restarts and will be run at regular intervals until it is successful.
1. The device will check its own local configuration settings for a preset primary or backup HPDM
Gateway to use. These settings can be configured using the following steps:
a. Switch to Administrator Mode (see your device operating system documentation for
instructions).
b. Open the HP Agent applet in the control panel.
c. Enter the IP address of the HPDM Gateway in the Current Gateway field.
d. Click OK.
If the primary HPDM Gateway is set, the HPDM Agent will try to contact it. If that fails and a
backup HPDM Gateway is also set, it will then try to contact that. If that also fails, the HPDM
Agent will move on to the next method.
2. The HPDM Agent will check the device's DHCP lease file to see if tag 202 is defined. Tag 202 is
interpreted as a string representation of the HPDM Server’s IP address, followed by a space and
then the HPDM Gateway IP address.
For example, if the following value is found associated with tag 202 in the device's DHCP lease
file, then the HPDM Agent will attempt to connect to the HPDM Gateway 192.168.1.1:
192.168.1.5 192.168.1.1
3. If a DNS server exists on the device’s local network, a request is sent to the device to perform a
lookup for the DNS name hpdm-gateway to identify the HPDM Gateway IP address.
4. The HPDM Agent will send a request to the broadcast address of its subnet. If an HPDM
Gateway is present on the subnet, it will reply to the broadcast and the HPDM Agent will connect
to it.
18 Chapter 3 Device discovery