HP Scanjet Enterprise 7000n , HP Color LaserJet CP5525, HP Color LaserJet CM4540 MFP and HP LaserJet M4555 MFP - HP Imaging and Printing Security Best Practices

Chapter 4 HP LaserJet and Color LaserJet MFP Security Checklist 28
CAUTION:
These instructions are for the initial configuration of SNMPv3. Once you
finish this configuration, your devices will require these credentials
whenever anyone attempts to access settings over the network. Be sure
to remember these credentials and provide them only to authorized
users. If these credentials are forgotten, the only way to restore
communication between HP Web Jetadmin and the print devices is to
restore them to factory default settings.
Web Jetadmin retains the SNMPv3 credentials for each device, and it
will not prompt for them as long as the settings remain the same. You
can clear the Web Jetadmin Device Cache to cause Web Jetadmin to
require the credentials again. Web Jetadmin stores the SNMPv3
credentials in an encrypted form.
Scroll down to the SNMPv1 Settings section, and select SNMPv1 disabled (Figure 22).
Figure 22: The SNMP Version 3 Only setting.
This setting limits all SNMP configuration communication to only SNMPv 3. Once applied your
devices will not allow SNMPv1 SET and SNMPv2 GET.
Choose Apply at the bottom of the SNMP Version Access Control configuration to apply
the settings to the selected devices.
If your configuration is not successful, you can click the Details button for more information on
why the configuration failed.
Now, whenever you click Apply to configure settings, the MFP or other device will check for the
SNMPv3 credentials.
Note:
For convenience, Web Jetadmin stores the credentials for each device in
an encrypted format. However, Web Jetadmin may still prompt you for
credentials on occasion so remember the passwords you set.
1. Click Done to exit the Configure Devices dialogue, and continue with this checklist.