●IP Range calculator (Setting Realistic Ranges on page 132).

●Discovery History on page 153.

●Discovery Templates (Create a Discovery Template on page 154).

●Manage Blocked Devices on page 56.

●Integrated PC-Connected device discovery (How HP Web Jetadmin Discovers PC-Connected Devices on page 126).

Network devices can be automatically discovered on multiple subnets and then managed. The following types of discovery are currently supported:

●SLP Multicast Discovery on page 129: An SLP Multicast request is sent out on the network to evoke a response from devices connected to HP Jetdirect print servers.

●IP Broadcast Discovery on page 130: An SNMP Broadcast is sent to the specified Broadcast address. SNMP Devices respond.

●IP Range Discovery on page 131: Searches for devices within a range of IP addresses.

●Specified Device Address Discovery on page 136: You can add address lists of known devices to HP Web Jetadmin to query only specific end nodes.

●Active Directory Discovery on page 138: Queries Microsoft Active Directory using an Active Directory starting point such as domain, organization units (OUs), or other Active Directory containers.

●Domain Discovery on page 140: For PC-Connected devices, the domain is browsed to identify Windows hosts on the network.

●WS-Discovery on page 141: A Web Services request is sent out on the network to evoke a response from network-connected and PC-connected devices that support the Web Services protocol.

●Quick Device Discovery on page 128 is also available to discover devices when you add the hostname or IP address information to this feature anywhere in Device Management. Plus, HP Web Jetadmin can listen for SLP announcements that are propagated from HP Jetdirect-connected devices. This passive mechanism requires no additional settings and only generates network traffic when HP Web Jetadmin receives an SLP announcement.

In addition to gathering devices that are directly connected to the network, HP Web Jetadmin can find PC- Connected devices. These are devices that are connected through USB or parallel connectors to either desktops or servers on the network (Discovery Types and Methods on page 125).

When you initially install HP Web Jetadmin, you will be asked if you want to run a discovery immediately. You can request to discover devices at any time. By default, HP Web Jetadmin does not listen for SLP broadcasts; when passive SLP is enabled, some devices may be found by this type of discovery even if you do not initiate a discovery.

Discovering Devices with HP Web Jetadmin through Firewalls

Although firewalls provide a secure perimeter for business resources, they can also present a barrier to software products. HP Web Jetadmin provides the ability to discover and manage devices throughout a business network.

HP Web Jetadmin uses Multicast and SLP techniques to discover devices on your network. Using standard firewall configurations, multicasts are typically blocked because the communication port on which it relies is blocked. To facilitate a broadcast discovery such as Multicast and SLP, HP Web Jetadmin uses the well-known static port, UDP port number 427. To enable this discovery technique, the machine running HP Web Jetadmin must unblock the port used from within the firewall settings.

To ensure this feature works properly, see System Requirements on page 1.

124 Chapter 3 Device Management

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