Discovery Types and Methods
6. Click OK, and then continue with the Device Discovery wizard
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IP Range Discoveries for PC-Connected Devices
IP Range discoveries for PC-Connected devices first send an SNMP query to all addresses within the range. If SNMP communication is possible on a device, the discovery attempts to find a locally connected printer. If no SNMP communication is possible and if the user provided administrative credentials, the discovery will attempt to find a locally connected printer on the device.
Characteristics of IP range discoveries for PC-Connected devices include:
● IP Range scanning is same as network connected.
● Nodes representing hosts are detected.
● SNMP queries are attempted on discovered nodes.
● If no SNMP Proxy Agent response, WMI queries are performed when credentials exist in settings.
Details About Running an IP Range Discovery
The Select IP ranges page is displayed when you choose IP range as the discovery method while:
● Creating discovery templates (Create Discovery Templates on page 157)
● Editing discovery templates (Edit Discovery Templates on page 158)
● Scheduling a discovery (Schedule Discoveries on page 154)
● Running a Web Jetadmin discovery (Discover Remote Installations of HP Web Jetadmin on page 284) On the Select IP ranges page, you can select the IP address ranges displayed or you can edit the ranges.
1. Choose the action to take:
● Select an IP range.
● Add: Add an IP range by clicking Add. Type the range in First address and Last address; then type a description (if desired) in Description. Click Add.
To calculate a range, click Calculate range. The Calculate IP Range page is displayed:
◦ Subnet from my computer: Automatically use IP address ranges currently found on the local subnet of your computer. You can add a description in Description if desired.
◦ Subnet from WJA server: Automatically use IP address ranges currently found on the subnet of the HP Web Jetadmin server. You can add a description in Description if desired.
◦ Subnet from network address: Type a known IP address and subnet mask. You can add a description in Description if desired.
● Edit: Make changes to IP ranges by clicking Edit. Follow the steps in the bullet above for “Add”.
● Delete: Remove addresses from the list by highlighting the address and clicking Delete.
● Import: If desired, import a range list by clicking Import and then browse for the range list.
● Export: If desired, export a range list by clicking Export and then browse for location you want to store the range list.
● Show favorites only: View only the IP ranges you have added by clicking Show favorites only (at the bottom of the page).
● Customize: Add or remove addresses to favorites by clicking Customize. Then select an address and click Add Favorite or Remove Favorite. When done, click OK.
2. Click OK.
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Specified Device Address Discovery
● Specified Device Address Discoveries for Network Devices
● Specified Device Address Discoveries for PC-Connected Devices
● Details About Running a Specified Device Addresses Discovery
Sometimes there is enough information about your device fleet that enables building a base of device addresses. These addresses can be added to HP Web Jetadmin through the Specified Address option (see Manage the Address Lists for Specified Address Discoveries on page 45).
Specified Device Address discoveries use an explicit list of device addresses. These addresses can be IP hostnames or IP addresses. IP hostnames can have fully qualified domain information appended. Address information can be both imported from and exported to text files. Specified Device Address discovery works similarly to IP Range discovery; HP Web Jetadmin simply moves down a list of addresses, performing queries and adding qualified devices to the all devices list.
Here is an example of a small specified address base:
● 15.5.2.1
● 15.5.62.4
● 15.5.8.3
● 15.5.8.7
● BP005a.yourco.com
● BP065
● BP076.yourco.com
NOTE: For PC-Connected device discoveries, HP Web Jetadmin follows SNMP queries with WMI queries when no SNMP Proxy Agent has been detected on the remote host.
Specified Device Address Discoveries for Network Devices
Network device discovery queries each address in the list specified. Devices qualified through these queries are added to the All Devices list.
Characteristics of Specified Device Address discoveries for network devices include:
● Specified device address discoveries find devices based on user supplied addresses.
● IP address or hostnames are valid address forms.
● HP Web Jetadmin initially qualifies the device by using an SNMP query.
● Follow-up queries through SNMP qualify the device and place it into the All Devices list if appropriate.
● This discovery is very fast and only hits the addresses specified by the user.
● This discovery is only as accurate as the address base specified by the user.
● Addresses can be entered into HP Web Jetadmin one by one or they can be imported from text file.
● In HP Web Jetadmin, addresses can be exported to text file.
Specified Device Address Discoveries for PC-Connected Devices
Specified Address discoveries for PC-Connected devices first send an SNMP query to all addresses within the list of addresses. If SNMP communication is possible on a device, the discovery attempts to find a locally
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connected printer. If no SNMP communication is possible and if the user provided administrative credentials, the discovery will attempt to find a locally connected printer on the device using WMI protocol.
Characteristics of Specified Device Address discoveries for PC-Connected devices include:
● Specified address scan is the same as network connected.
● Nodes representing hosts are detected.
● SNMP queries are attempted on discovered nodes.
● If no SNMP Proxy Agent response, WMI queries are performed when credentials exist in settings.
Details About Running a Specified Device Addresses Discovery
If one of the discovery methods you choose is Specified address (while creating templates (Create Discovery Templates on page 157), editing templates (Edit Discovery Templates on page 158), or scheduling (Schedule Discoveries on page 154)), then the Select addresses page is displayed. On this page, you can select the IP address ranges displayed or you can edit the addresses:
1. In the left navigation pane, click Discovery and then click Discover devices on my network (in the Discovery - Current Tasks task module). The Device Discovery wizard is started with the Specify discovery options page displayed.
2. Select Specify settings and then select Specified addresses. Click Next. The Select addresses page is displayed.