HP Web Jetadmin Software Manual de usuario descargar pdf (Pagina 146)

Resolve Communication Errors for Devices That Have a New IP Address

Devices can be in a communication error status for several reasons, such as the device is turned o or the IP

address assigned to the device has changed. If devices are in a communication error status because the IP

addresses assigned to the devices have changed, you can use the Resolve IP Addresses wizard to rediscover

these devices and resolve the status.

The Resolve IP Addresses wizard retrieves a list of all the devices that are currently in a communication error

status, regardless of the reason for the communication error. For each of these devices, the wizard retrieves the

hostname assigned to the device, and then looks up the hostname in the Domain Name System (DNS) to

determine if the corresponding IP address has changed. If a new IP address has been assigned to the device, the

wizard adds that device to a list of devices to be rediscovered. The wizard then runs a Specied Addresses

discovery using this list of devices to be rediscovered. If there are PC-connected devices and network-connected

devices in a communication error status, the wizard runs a separate discovery for each group of devices.

If you know that the IP addresses assigned to some of the devices on the network have changed, you can run

the Resolve IP Addresses wizard one time to resolve the status of those devices. If the IP addresses assigned to

the devices on the network change frequently, you can create a schedule to run the wizard on a recurring basis,

such as daily, weekly, or monthly.

To resolve devices that are in a communication error status, perform the following steps:

1. Go to Tools > Resolve Device Communication Failures. The Resolve IP Addresses wizard starts.

2. To run the discovery immediately, leave the Schedule checkbox cleared.

-or-

To create a schedule for the discovery, select the Schedule checkbox.

A scheduled task uses the date and time on the server where HP Web Jetadmin is installed. The location

where the scheduled task runs might not be in the same time zone as the location where the HP Web

Jetadmin server is installed. Consider the potential for date and time dierences when scheduling tasks.

3. Click the Next button. The Specify credentials page appears.

4. If credentials are required to discover the devices, select the Specify credentials to use for this discovery

option, and then perform the following steps:

a. If the devices on the network have an SNMPv1 Get Community Name other than public dened, select

the SNMPv1 Get Community Name checkbox, and then enter the SNMPv1 Get Community Name in

the box.

b. If HP Web Jetadmin is congured to discover SNMPv3 devices, select the SNMPv3 Credentials

checkbox, and then enter the user name, authentication password, and private password in the

boxes.

IMPORTANT: To enable HP Web Jetadmin to discover SNMPv3 devices, go to Tools > Options >

Device Management > Device Discovery > General.

c. If the devices are connected to the network through a PC, select the WMI Credentials checkbox, and

then enter the administrator (local) credentials for the Windows host that HP Web Jetadmin queries

during the discovery in the boxes.

d. To use the global credentials, select the Use global credentials checkbox.

TIP: To dene the global credentials, go to Tools > Options > Shared > Credentials, and then select

the appropriate option.

120 Chapter 3 Device Management ENWW

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HP Web Jetadmin Software Manual de usuario Pagina 146