Determining the ID key used to identify hosts

In networks that use JP1/Software Distribution, you must determine the key used to identify hosts. There are two types of keys:

Host ID
This key is unique within the system and identifies each client individually. A host ID is generated when each client is installed and is reported automatically to the higher system. Therefore, unlike the node identification key described below, host IDs are not affected by changes in the network configuration. A host ID is created when each client is installed and saved in the host ID management file.
Node identification key
You can use either host names or IP addresses as the node identification key; you select one or the other during setup. Because both cannot be used at the same time, select one before starting operation of your JP1/Software Distribution system. You can change the node identification key during operation, but this is not recommended because the change results in deletion of some information. For details, see 4.2.8(2) Notes on changing the node identification key in the Setup Guide.

To determine the ID key used to identify JP1/Software Distribution hosts, evaluate the following items:

Whether to use host IDs
Whether to use host names or IP addresses as the node identification key

Organization of this subsection: (1) Evaluating whether to use host IDs; (2) Selecting the node identification key

(1) Evaluating whether to use host IDs

We recommend using host IDs for network management in the following types of systems:

Systems that integrate multiple domains, so that there might be duplicated host names and IP addresses.
Environments in which the network configuration changes frequently due to changes in the configuration of clients.

(2) Selecting the node identification key

The type of identifiers used for managing nodes (hosts) in a network that uses JP1/Software Distribution is called the node identification key. Either host names or IP addresses can be used as the node identification key.

Because host names and IP addresses cannot both be used, you must select which you will use before starting operations. Note that in a system in which managing servers are configured in a hierarchy, it is not necessary to use the same identification key throughout the entire system. However, you must standardize the node identification key within each system managed by a relay manager.

(a) Using host names to manage JP1/Software Distribution nodes

You must use host names for management of nodes in the following systems:

Systems in which a firewall is installed
Systems in which the DHCP is used

Name hosts according to the rules described in 8.1.2 Assigning host names in a JP1/Software Distribution system in the Setup Guide.

(b) Using IP addresses to manage JP1/Software Distribution nodes

If it is difficult to use host names to manage nodes within the network, you can use IP addresses instead. When IP addresses are used, relay systems and clients do not require definitions for name resolution, such as by using the hosts file, but relay managers do.

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6.1.2 Determining the ID key used to identify hosts

(1) Evaluating whether to use host IDs

(2) Selecting the node identification key

(a) Using host names to manage JP1/Software Distribution nodes

(b) Using IP addresses to manage JP1/Software Distribution nodes